import io
import struct
from fontTools.misc.fixedTools import floatToFixed
from fontTools.misc.testTools import getXML
from fontTools.otlLib import builder
from fontTools import ttLib
from fontTools.ttLib.tables import otTables
import pytest


class BuilderTest(object):
    GLYPHS = (
        ".notdef space zero one two three four five six "
        "A B C a b c grave acute cedilla f_f_i f_i c_t"
    ).split()
    GLYPHMAP = {name: num for num, name in enumerate(GLYPHS)}

    ANCHOR1 = builder.buildAnchor(11, -11)
    ANCHOR2 = builder.buildAnchor(22, -22)
    ANCHOR3 = builder.buildAnchor(33, -33)

    def test_buildAnchor_format1(self):
        anchor = builder.buildAnchor(23, 42)
        assert getXML(anchor.toXML) == [
            '<Anchor Format="1">',
            '  <XCoordinate value="23"/>',
            '  <YCoordinate value="42"/>',
            "</Anchor>",
        ]

    def test_buildAnchor_format2(self):
        anchor = builder.buildAnchor(23, 42, point=17)
        assert getXML(anchor.toXML) == [
            '<Anchor Format="2">',
            '  <XCoordinate value="23"/>',
            '  <YCoordinate value="42"/>',
            '  <AnchorPoint value="17"/>',
            "</Anchor>",
        ]

    def test_buildAnchor_format3(self):
        anchor = builder.buildAnchor(
            23,
            42,
            deviceX=builder.buildDevice({1: 1, 0: 0}),
            deviceY=builder.buildDevice({7: 7}),
        )
        assert getXML(anchor.toXML) == [
            '<Anchor Format="3">',
            '  <XCoordinate value="23"/>',
            '  <YCoordinate value="42"/>',
            "  <XDeviceTable>",
            '    <StartSize value="0"/>',
            '    <EndSize value="1"/>',
            '    <DeltaFormat value="1"/>',
            '    <DeltaValue value="[0, 1]"/>',
            "  </XDeviceTable>",
            "  <YDeviceTable>",
            '    <StartSize value="7"/>',
            '    <EndSize value="7"/>',
            '    <DeltaFormat value="2"/>',
            '    <DeltaValue value="[7]"/>',
            "  </YDeviceTable>",
            "</Anchor>",
        ]

    def test_buildAttachList(self):
        attachList = builder.buildAttachList(
            {"zero": [23, 7], "one": [1]}, self.GLYPHMAP
        )
        assert getXML(attachList.toXML) == [
            "<AttachList>",
            "  <Coverage>",
            '    <Glyph value="zero"/>',
            '    <Glyph value="one"/>',
            "  </Coverage>",
            "  <!-- GlyphCount=2 -->",
            '  <AttachPoint index="0">',
            "    <!-- PointCount=2 -->",
            '    <PointIndex index="0" value="7"/>',
            '    <PointIndex index="1" value="23"/>',
            "  </AttachPoint>",
            '  <AttachPoint index="1">',
            "    <!-- PointCount=1 -->",
            '    <PointIndex index="0" value="1"/>',
            "  </AttachPoint>",
            "</AttachList>",
        ]

    def test_buildAttachList_empty(self):
        assert builder.buildAttachList({}, self.GLYPHMAP) is None

    def test_buildAttachPoint(self):
        attachPoint = builder.buildAttachPoint([7, 3])
        assert getXML(attachPoint.toXML) == [
            "<AttachPoint>",
            "  <!-- PointCount=2 -->",
            '  <PointIndex index="0" value="3"/>',
            '  <PointIndex index="1" value="7"/>',
            "</AttachPoint>",
        ]

    def test_buildAttachPoint_empty(self):
        assert builder.buildAttachPoint([]) is None

    def test_buildAttachPoint_duplicate(self):
        attachPoint = builder.buildAttachPoint([7, 3, 7])
        assert getXML(attachPoint.toXML) == [
            "<AttachPoint>",
            "  <!-- PointCount=2 -->",
            '  <PointIndex index="0" value="3"/>',
            '  <PointIndex index="1" value="7"/>',
            "</AttachPoint>",
        ]

    def test_buildBaseArray(self):
        anchor = builder.buildAnchor
        baseArray = builder.buildBaseArray(
            {"a": {2: anchor(300, 80)}, "c": {1: anchor(300, 80), 2: anchor(300, -20)}},
            numMarkClasses=4,
            glyphMap=self.GLYPHMAP,
        )
        assert getXML(baseArray.toXML) == [
            "<BaseArray>",
            "  <!-- BaseCount=2 -->",
            '  <BaseRecord index="0">',
            '    <BaseAnchor index="0" empty="1"/>',
            '    <BaseAnchor index="1" empty="1"/>',
            '    <BaseAnchor index="2" Format="1">',
            '      <XCoordinate value="300"/>',
            '      <YCoordinate value="80"/>',
            "    </BaseAnchor>",
            '    <BaseAnchor index="3" empty="1"/>',
            "  </BaseRecord>",
            '  <BaseRecord index="1">',
            '    <BaseAnchor index="0" empty="1"/>',
            '    <BaseAnchor index="1" Format="1">',
            '      <XCoordinate value="300"/>',
            '      <YCoordinate value="80"/>',
            "    </BaseAnchor>",
            '    <BaseAnchor index="2" Format="1">',
            '      <XCoordinate value="300"/>',
            '      <YCoordinate value="-20"/>',
            "    </BaseAnchor>",
            '    <BaseAnchor index="3" empty="1"/>',
            "  </BaseRecord>",
            "</BaseArray>",
        ]

    def test_buildBaseRecord(self):
        a = builder.buildAnchor
        rec = builder.buildBaseRecord([a(500, -20), None, a(300, -15)])
        assert getXML(rec.toXML) == [
            "<BaseRecord>",
            '  <BaseAnchor index="0" Format="1">',
            '    <XCoordinate value="500"/>',
            '    <YCoordinate value="-20"/>',
            "  </BaseAnchor>",
            '  <BaseAnchor index="1" empty="1"/>',
            '  <BaseAnchor index="2" Format="1">',
            '    <XCoordinate value="300"/>',
            '    <YCoordinate value="-15"/>',
            "  </BaseAnchor>",
            "</BaseRecord>",
        ]

    def test_buildCaretValueForCoord(self):
        caret = builder.buildCaretValueForCoord(500)
        assert getXML(caret.toXML) == [
            '<CaretValue Format="1">',
            '  <Coordinate value="500"/>',
            "</CaretValue>",
        ]

    def test_buildCaretValueForPoint(self):
        caret = builder.buildCaretValueForPoint(23)
        assert getXML(caret.toXML) == [
            '<CaretValue Format="2">',
            '  <CaretValuePoint value="23"/>',
            "</CaretValue>",
        ]

    def test_buildComponentRecord(self):
        a = builder.buildAnchor
        rec = builder.buildComponentRecord([a(500, -20), None, a(300, -15)])
        assert getXML(rec.toXML) == [
            "<ComponentRecord>",
            '  <LigatureAnchor index="0" Format="1">',
            '    <XCoordinate value="500"/>',
            '    <YCoordinate value="-20"/>',
            "  </LigatureAnchor>",
            '  <LigatureAnchor index="1" empty="1"/>',
            '  <LigatureAnchor index="2" Format="1">',
            '    <XCoordinate value="300"/>',
            '    <YCoordinate value="-15"/>',
            "  </LigatureAnchor>",
            "</ComponentRecord>",
        ]

    def test_buildComponentRecord_empty(self):
        assert builder.buildComponentRecord([]) is None

    def test_buildComponentRecord_None(self):
        assert builder.buildComponentRecord(None) is None

    def test_buildCoverage(self):
        cov = builder.buildCoverage({"two", "four"}, {"two": 2, "four": 4})
        assert getXML(cov.toXML) == [
            "<Coverage>",
            '  <Glyph value="two"/>',
            '  <Glyph value="four"/>',
            "</Coverage>",
        ]

    def test_buildCursivePos(self):
        pos = builder.buildCursivePosSubtable(
            {"two": (self.ANCHOR1, self.ANCHOR2), "four": (self.ANCHOR3, self.ANCHOR1)},
            self.GLYPHMAP,
        )
        assert getXML(pos.toXML) == [
            '<CursivePos Format="1">',
            "  <Coverage>",
            '    <Glyph value="two"/>',
            '    <Glyph value="four"/>',
            "  </Coverage>",
            "  <!-- EntryExitCount=2 -->",
            '  <EntryExitRecord index="0">',
            '    <EntryAnchor Format="1">',
            '      <XCoordinate value="11"/>',
            '      <YCoordinate value="-11"/>',
            "    </EntryAnchor>",
            '    <ExitAnchor Format="1">',
            '      <XCoordinate value="22"/>',
            '      <YCoordinate value="-22"/>',
            "    </ExitAnchor>",
            "  </EntryExitRecord>",
            '  <EntryExitRecord index="1">',
            '    <EntryAnchor Format="1">',
            '      <XCoordinate value="33"/>',
            '      <YCoordinate value="-33"/>',
            "    </EntryAnchor>",
            '    <ExitAnchor Format="1">',
            '      <XCoordinate value="11"/>',
            '      <YCoordinate value="-11"/>',
            "    </ExitAnchor>",
            "  </EntryExitRecord>",
            "</CursivePos>",
        ]

    def test_buildDevice_format1(self):
        device = builder.buildDevice({1: 1, 0: 0})
        assert getXML(device.toXML) == [
            "<Device>",
            '  <StartSize value="0"/>',
            '  <EndSize value="1"/>',
            '  <DeltaFormat value="1"/>',
            '  <DeltaValue value="[0, 1]"/>',
            "</Device>",
        ]

    def test_buildDevice_format2(self):
        device = builder.buildDevice({2: 2, 0: 1, 1: 0})
        assert getXML(device.toXML) == [
            "<Device>",
            '  <StartSize value="0"/>',
            '  <EndSize value="2"/>',
            '  <DeltaFormat value="2"/>',
            '  <DeltaValue value="[1, 0, 2]"/>',
            "</Device>",
        ]

    def test_buildDevice_format3(self):
        device = builder.buildDevice({5: 3, 1: 77})
        assert getXML(device.toXML) == [
            "<Device>",
            '  <StartSize value="1"/>',
            '  <EndSize value="5"/>',
            '  <DeltaFormat value="3"/>',
            '  <DeltaValue value="[77, 0, 0, 0, 3]"/>',
            "</Device>",
        ]

    def test_buildLigatureArray(self):
        anchor = builder.buildAnchor
        ligatureArray = builder.buildLigatureArray(
            {
                "f_i": [{2: anchor(300, -20)}, {}],
                "c_t": [{}, {1: anchor(500, 350), 2: anchor(1300, -20)}],
            },
            numMarkClasses=4,
            glyphMap=self.GLYPHMAP,
        )
        assert getXML(ligatureArray.toXML) == [
            "<LigatureArray>",
            "  <!-- LigatureCount=2 -->",
            '  <LigatureAttach index="0">',  # f_i
            "    <!-- ComponentCount=2 -->",
            '    <ComponentRecord index="0">',
            '      <LigatureAnchor index="0" empty="1"/>',
            '      <LigatureAnchor index="1" empty="1"/>',
            '      <LigatureAnchor index="2" Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="-20"/>',
            "      </LigatureAnchor>",
            '      <LigatureAnchor index="3" empty="1"/>',
            "    </ComponentRecord>",
            '    <ComponentRecord index="1">',
            '      <LigatureAnchor index="0" empty="1"/>',
            '      <LigatureAnchor index="1" empty="1"/>',
            '      <LigatureAnchor index="2" empty="1"/>',
            '      <LigatureAnchor index="3" empty="1"/>',
            "    </ComponentRecord>",
            "  </LigatureAttach>",
            '  <LigatureAttach index="1">',
            "    <!-- ComponentCount=2 -->",
            '    <ComponentRecord index="0">',
            '      <LigatureAnchor index="0" empty="1"/>',
            '      <LigatureAnchor index="1" empty="1"/>',
            '      <LigatureAnchor index="2" empty="1"/>',
            '      <LigatureAnchor index="3" empty="1"/>',
            "    </ComponentRecord>",
            '    <ComponentRecord index="1">',
            '      <LigatureAnchor index="0" empty="1"/>',
            '      <LigatureAnchor index="1" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="350"/>',
            "      </LigatureAnchor>",
            '      <LigatureAnchor index="2" Format="1">',
            '        <XCoordinate value="1300"/>',
            '        <YCoordinate value="-20"/>',
            "      </LigatureAnchor>",
            '      <LigatureAnchor index="3" empty="1"/>',
            "    </ComponentRecord>",
            "  </LigatureAttach>",
            "</LigatureArray>",
        ]

    def test_buildLigatureAttach(self):
        anchor = builder.buildAnchor
        attach = builder.buildLigatureAttach(
            [[anchor(500, -10), None], [None, anchor(300, -20), None]]
        )
        assert getXML(attach.toXML) == [
            "<LigatureAttach>",
            "  <!-- ComponentCount=2 -->",
            '  <ComponentRecord index="0">',
            '    <LigatureAnchor index="0" Format="1">',
            '      <XCoordinate value="500"/>',
            '      <YCoordinate value="-10"/>',
            "    </LigatureAnchor>",
            '    <LigatureAnchor index="1" empty="1"/>',
            "  </ComponentRecord>",
            '  <ComponentRecord index="1">',
            '    <LigatureAnchor index="0" empty="1"/>',
            '    <LigatureAnchor index="1" Format="1">',
            '      <XCoordinate value="300"/>',
            '      <YCoordinate value="-20"/>',
            "    </LigatureAnchor>",
            '    <LigatureAnchor index="2" empty="1"/>',
            "  </ComponentRecord>",
            "</LigatureAttach>",
        ]

    def test_buildLigatureAttach_emptyComponents(self):
        attach = builder.buildLigatureAttach([[], None])
        assert getXML(attach.toXML) == [
            "<LigatureAttach>",
            "  <!-- ComponentCount=2 -->",
            '  <ComponentRecord index="0" empty="1"/>',
            '  <ComponentRecord index="1" empty="1"/>',
            "</LigatureAttach>",
        ]

    def test_buildLigatureAttach_noComponents(self):
        attach = builder.buildLigatureAttach([])
        assert getXML(attach.toXML) == [
            "<LigatureAttach>",
            "  <!-- ComponentCount=0 -->",
            "</LigatureAttach>",
        ]

    def test_buildLigCaretList(self):
        carets = builder.buildLigCaretList(
            {"f_f_i": [300, 600]}, {"c_t": [42]}, self.GLYPHMAP
        )
        assert getXML(carets.toXML) == [
            "<LigCaretList>",
            "  <Coverage>",
            '    <Glyph value="f_f_i"/>',
            '    <Glyph value="c_t"/>',
            "  </Coverage>",
            "  <!-- LigGlyphCount=2 -->",
            '  <LigGlyph index="0">',
            "    <!-- CaretCount=2 -->",
            '    <CaretValue index="0" Format="1">',
            '      <Coordinate value="300"/>',
            "    </CaretValue>",
            '    <CaretValue index="1" Format="1">',
            '      <Coordinate value="600"/>',
            "    </CaretValue>",
            "  </LigGlyph>",
            '  <LigGlyph index="1">',
            "    <!-- CaretCount=1 -->",
            '    <CaretValue index="0" Format="2">',
            '      <CaretValuePoint value="42"/>',
            "    </CaretValue>",
            "  </LigGlyph>",
            "</LigCaretList>",
        ]

    def test_buildLigCaretList_bothCoordsAndPointsForSameGlyph(self):
        carets = builder.buildLigCaretList(
            {"f_f_i": [300]}, {"f_f_i": [7]}, self.GLYPHMAP
        )
        assert getXML(carets.toXML) == [
            "<LigCaretList>",
            "  <Coverage>",
            '    <Glyph value="f_f_i"/>',
            "  </Coverage>",
            "  <!-- LigGlyphCount=1 -->",
            '  <LigGlyph index="0">',
            "    <!-- CaretCount=2 -->",
            '    <CaretValue index="0" Format="1">',
            '      <Coordinate value="300"/>',
            "    </CaretValue>",
            '    <CaretValue index="1" Format="2">',
            '      <CaretValuePoint value="7"/>',
            "    </CaretValue>",
            "  </LigGlyph>",
            "</LigCaretList>",
        ]

    def test_buildLigCaretList_empty(self):
        assert builder.buildLigCaretList({}, {}, self.GLYPHMAP) is None

    def test_buildLigCaretList_None(self):
        assert builder.buildLigCaretList(None, None, self.GLYPHMAP) is None

    def test_buildLigGlyph_coords(self):
        lig = builder.buildLigGlyph([500, 800], None)
        assert getXML(lig.toXML) == [
            "<LigGlyph>",
            "  <!-- CaretCount=2 -->",
            '  <CaretValue index="0" Format="1">',
            '    <Coordinate value="500"/>',
            "  </CaretValue>",
            '  <CaretValue index="1" Format="1">',
            '    <Coordinate value="800"/>',
            "  </CaretValue>",
            "</LigGlyph>",
        ]

    def test_buildLigGlyph_empty(self):
        assert builder.buildLigGlyph([], []) is None

    def test_buildLigGlyph_None(self):
        assert builder.buildLigGlyph(None, None) is None

    def test_buildLigGlyph_points(self):
        lig = builder.buildLigGlyph(None, [2])
        assert getXML(lig.toXML) == [
            "<LigGlyph>",
            "  <!-- CaretCount=1 -->",
            '  <CaretValue index="0" Format="2">',
            '    <CaretValuePoint value="2"/>',
            "  </CaretValue>",
            "</LigGlyph>",
        ]

    def test_buildLookup(self):
        s1 = builder.buildSingleSubstSubtable({"one": "two"})
        s2 = builder.buildSingleSubstSubtable({"three": "four"})
        lookup = builder.buildLookup([s1, s2], flags=7)
        assert getXML(lookup.toXML) == [
            "<Lookup>",
            '  <LookupType value="1"/>',
            '  <LookupFlag value="7"/><!-- rightToLeft ignoreBaseGlyphs ignoreLigatures -->',
            "  <!-- SubTableCount=2 -->",
            '  <SingleSubst index="0">',
            '    <Substitution in="one" out="two"/>',
            "  </SingleSubst>",
            '  <SingleSubst index="1">',
            '    <Substitution in="three" out="four"/>',
            "  </SingleSubst>",
            "</Lookup>",
        ]

    def test_buildLookup_badFlags(self):
        s = builder.buildSingleSubstSubtable({"one": "two"})
        with pytest.raises(
            AssertionError,
            match=(
                "if markFilterSet is None, flags must not set "
                "LOOKUP_FLAG_USE_MARK_FILTERING_SET; flags=0x0010"
            ),
        ) as excinfo:
            builder.buildLookup([s], builder.LOOKUP_FLAG_USE_MARK_FILTERING_SET, None)

    def test_buildLookup_conflictingSubtableTypes(self):
        s1 = builder.buildSingleSubstSubtable({"one": "two"})
        s2 = builder.buildAlternateSubstSubtable({"one": ["two", "three"]})
        with pytest.raises(
            AssertionError, match="all subtables must have the same LookupType"
        ) as excinfo:
            builder.buildLookup([s1, s2])

    def test_buildLookup_noSubtables(self):
        assert builder.buildLookup([]) is None
        assert builder.buildLookup(None) is None
        assert builder.buildLookup([None]) is None
        assert builder.buildLookup([None, None]) is None

    def test_buildLookup_markFilterSet(self):
        s = builder.buildSingleSubstSubtable({"one": "two"})
        flags = (
            builder.LOOKUP_FLAG_RIGHT_TO_LEFT
            | builder.LOOKUP_FLAG_USE_MARK_FILTERING_SET
        )
        lookup = builder.buildLookup([s], flags, markFilterSet=999)
        assert getXML(lookup.toXML) == [
            "<Lookup>",
            '  <LookupType value="1"/>',
            '  <LookupFlag value="17"/><!-- rightToLeft useMarkFilteringSet -->',
            "  <!-- SubTableCount=1 -->",
            '  <SingleSubst index="0">',
            '    <Substitution in="one" out="two"/>',
            "  </SingleSubst>",
            '  <MarkFilteringSet value="999"/>',
            "</Lookup>",
        ]

    def test_buildMarkArray(self):
        markArray = builder.buildMarkArray(
            {
                "acute": (7, builder.buildAnchor(300, 800)),
                "grave": (2, builder.buildAnchor(10, 80)),
            },
            self.GLYPHMAP,
        )
        assert self.GLYPHMAP["grave"] < self.GLYPHMAP["acute"]
        assert getXML(markArray.toXML) == [
            "<MarkArray>",
            "  <!-- MarkCount=2 -->",
            '  <MarkRecord index="0">',
            '    <Class value="2"/>',
            '    <MarkAnchor Format="1">',
            '      <XCoordinate value="10"/>',
            '      <YCoordinate value="80"/>',
            "    </MarkAnchor>",
            "  </MarkRecord>",
            '  <MarkRecord index="1">',
            '    <Class value="7"/>',
            '    <MarkAnchor Format="1">',
            '      <XCoordinate value="300"/>',
            '      <YCoordinate value="800"/>',
            "    </MarkAnchor>",
            "  </MarkRecord>",
            "</MarkArray>",
        ]

    def test_buildMarkBasePosSubtable(self):
        anchor = builder.buildAnchor
        marks = {
            "acute": (0, anchor(300, 700)),
            "cedilla": (1, anchor(300, -100)),
            "grave": (0, anchor(300, 700)),
        }
        bases = {
            # Make sure we can handle missing entries.
            "A": {},  # no entry for any markClass
            "B": {0: anchor(500, 900)},  # only markClass 0 specified
            "C": {1: anchor(500, -10)},  # only markClass 1 specified
            "a": {0: anchor(500, 400), 1: anchor(500, -20)},
            "b": {0: anchor(500, 800), 1: anchor(500, -20)},
        }
        table = builder.buildMarkBasePosSubtable(marks, bases, self.GLYPHMAP)
        assert getXML(table.toXML) == [
            '<MarkBasePos Format="1">',
            "  <MarkCoverage>",
            '    <Glyph value="grave"/>',
            '    <Glyph value="acute"/>',
            '    <Glyph value="cedilla"/>',
            "  </MarkCoverage>",
            "  <BaseCoverage>",
            '    <Glyph value="A"/>',
            '    <Glyph value="B"/>',
            '    <Glyph value="C"/>',
            '    <Glyph value="a"/>',
            '    <Glyph value="b"/>',
            "  </BaseCoverage>",
            "  <!-- ClassCount=2 -->",
            "  <MarkArray>",
            "    <!-- MarkCount=3 -->",
            '    <MarkRecord index="0">',  # grave
            '      <Class value="0"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="700"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            '    <MarkRecord index="1">',  # acute
            '      <Class value="0"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="700"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            '    <MarkRecord index="2">',  # cedilla
            '      <Class value="1"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="-100"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            "  </MarkArray>",
            "  <BaseArray>",
            "    <!-- BaseCount=5 -->",
            '    <BaseRecord index="0">',  # A
            '      <BaseAnchor index="0" empty="1"/>',
            '      <BaseAnchor index="1" empty="1"/>',
            "    </BaseRecord>",
            '    <BaseRecord index="1">',  # B
            '      <BaseAnchor index="0" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="900"/>',
            "      </BaseAnchor>",
            '      <BaseAnchor index="1" empty="1"/>',
            "    </BaseRecord>",
            '    <BaseRecord index="2">',  # C
            '      <BaseAnchor index="0" empty="1"/>',
            '      <BaseAnchor index="1" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="-10"/>',
            "      </BaseAnchor>",
            "    </BaseRecord>",
            '    <BaseRecord index="3">',  # a
            '      <BaseAnchor index="0" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="400"/>',
            "      </BaseAnchor>",
            '      <BaseAnchor index="1" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="-20"/>',
            "      </BaseAnchor>",
            "    </BaseRecord>",
            '    <BaseRecord index="4">',  # b
            '      <BaseAnchor index="0" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="800"/>',
            "      </BaseAnchor>",
            '      <BaseAnchor index="1" Format="1">',
            '        <XCoordinate value="500"/>',
            '        <YCoordinate value="-20"/>',
            "      </BaseAnchor>",
            "    </BaseRecord>",
            "  </BaseArray>",
            "</MarkBasePos>",
        ]

    def test_buildMarkGlyphSetsDef(self):
        marksets = builder.buildMarkGlyphSetsDef(
            [{"acute", "grave"}, {"cedilla", "grave"}], self.GLYPHMAP
        )
        assert getXML(marksets.toXML) == [
            "<MarkGlyphSetsDef>",
            '  <MarkSetTableFormat value="1"/>',
            "  <!-- MarkSetCount=2 -->",
            '  <Coverage index="0">',
            '    <Glyph value="grave"/>',
            '    <Glyph value="acute"/>',
            "  </Coverage>",
            '  <Coverage index="1">',
            '    <Glyph value="grave"/>',
            '    <Glyph value="cedilla"/>',
            "  </Coverage>",
            "</MarkGlyphSetsDef>",
        ]

    def test_buildMarkGlyphSetsDef_empty(self):
        assert builder.buildMarkGlyphSetsDef([], self.GLYPHMAP) is None

    def test_buildMarkGlyphSetsDef_None(self):
        assert builder.buildMarkGlyphSetsDef(None, self.GLYPHMAP) is None

    def test_buildMarkLigPosSubtable(self):
        anchor = builder.buildAnchor
        marks = {
            "acute": (0, anchor(300, 700)),
            "cedilla": (1, anchor(300, -100)),
            "grave": (0, anchor(300, 700)),
        }
        bases = {
            "f_i": [{}, {0: anchor(200, 400)}],  # nothing on f; only 1 on i
            "c_t": [
                {0: anchor(500, 600), 1: anchor(500, -20)},  # c
                {0: anchor(1300, 800), 1: anchor(1300, -20)},  # t
            ],
        }
        table = builder.buildMarkLigPosSubtable(marks, bases, self.GLYPHMAP)
        assert getXML(table.toXML) == [
            '<MarkLigPos Format="1">',
            "  <MarkCoverage>",
            '    <Glyph value="grave"/>',
            '    <Glyph value="acute"/>',
            '    <Glyph value="cedilla"/>',
            "  </MarkCoverage>",
            "  <LigatureCoverage>",
            '    <Glyph value="f_i"/>',
            '    <Glyph value="c_t"/>',
            "  </LigatureCoverage>",
            "  <!-- ClassCount=2 -->",
            "  <MarkArray>",
            "    <!-- MarkCount=3 -->",
            '    <MarkRecord index="0">',
            '      <Class value="0"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="700"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            '    <MarkRecord index="1">',
            '      <Class value="0"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="700"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            '    <MarkRecord index="2">',
            '      <Class value="1"/>',
            '      <MarkAnchor Format="1">',
            '        <XCoordinate value="300"/>',
            '        <YCoordinate value="-100"/>',
            "      </MarkAnchor>",
            "    </MarkRecord>",
            "  </MarkArray>",
            "  <LigatureArray>",
            "    <!-- LigatureCount=2 -->",
            '    <LigatureAttach index="0">',
            "      <!-- ComponentCount=2 -->",
            '      <ComponentRecord index="0">',
            '        <LigatureAnchor index="0" empty="1"/>',
            '        <LigatureAnchor index="1" empty="1"/>',
            "      </ComponentRecord>",
            '      <ComponentRecord index="1">',
            '        <LigatureAnchor index="0" Format="1">',
            '          <XCoordinate value="200"/>',
            '          <YCoordinate value="400"/>',
            "        </LigatureAnchor>",
            '        <LigatureAnchor index="1" empty="1"/>',
            "      </ComponentRecord>",
            "    </LigatureAttach>",
            '    <LigatureAttach index="1">',
            "      <!-- ComponentCount=2 -->",
            '      <ComponentRecord index="0">',
            '        <LigatureAnchor index="0" Format="1">',
            '          <XCoordinate value="500"/>',
            '          <YCoordinate value="600"/>',
            "        </LigatureAnchor>",
            '        <LigatureAnchor index="1" Format="1">',
            '          <XCoordinate value="500"/>',
            '          <YCoordinate value="-20"/>',
            "        </LigatureAnchor>",
            "      </ComponentRecord>",
            '      <ComponentRecord index="1">',
            '        <LigatureAnchor index="0" Format="1">',
            '          <XCoordinate value="1300"/>',
            '          <YCoordinate value="800"/>',
            "        </LigatureAnchor>",
            '        <LigatureAnchor index="1" Format="1">',
            '          <XCoordinate value="1300"/>',
            '          <YCoordinate value="-20"/>',
            "        </LigatureAnchor>",
            "      </ComponentRecord>",
            "    </LigatureAttach>",
            "  </LigatureArray>",
            "</MarkLigPos>",
        ]

    def test_buildMarkRecord(self):
        rec = builder.buildMarkRecord(17, builder.buildAnchor(500, -20))
        assert getXML(rec.toXML) == [
            "<MarkRecord>",
            '  <Class value="17"/>',
            '  <MarkAnchor Format="1">',
            '    <XCoordinate value="500"/>',
            '    <YCoordinate value="-20"/>',
            "  </MarkAnchor>",
            "</MarkRecord>",
        ]

    def test_buildMark2Record(self):
        a = builder.buildAnchor
        rec = builder.buildMark2Record([a(500, -20), None, a(300, -15)])
        assert getXML(rec.toXML) == [
            "<Mark2Record>",
            '  <Mark2Anchor index="0" Format="1">',
            '    <XCoordinate value="500"/>',
            '    <YCoordinate value="-20"/>',
            "  </Mark2Anchor>",
            '  <Mark2Anchor index="1" empty="1"/>',
            '  <Mark2Anchor index="2" Format="1">',
            '    <XCoordinate value="300"/>',
            '    <YCoordinate value="-15"/>',
            "  </Mark2Anchor>",
            "</Mark2Record>",
        ]

    def test_buildPairPosClassesSubtable(self):
        d20 = builder.buildValue({"XPlacement": -20})
        d50 = builder.buildValue({"XPlacement": -50})
        d0 = builder.buildValue({})
        d8020 = builder.buildValue({"XPlacement": -80, "YPlacement": -20})
        subtable = builder.buildPairPosClassesSubtable(
            {
                (tuple("A"), tuple(["zero"])): (d0, d50),
                (tuple("A"), tuple(["one", "two"])): (None, d20),
                (tuple(["B", "C"]), tuple(["zero"])): (d8020, d50),
            },
            self.GLYPHMAP,
        )
        assert getXML(subtable.toXML) == [
            '<PairPos Format="2">',
            "  <Coverage>",
            '    <Glyph value="A"/>',
            '    <Glyph value="B"/>',
            '    <Glyph value="C"/>',
            "  </Coverage>",
            '  <ValueFormat1 value="3"/>',
            '  <ValueFormat2 value="1"/>',
            "  <ClassDef1>",
            '    <ClassDef glyph="A" class="1"/>',
            "  </ClassDef1>",
            "  <ClassDef2>",
            '    <ClassDef glyph="one" class="1"/>',
            '    <ClassDef glyph="two" class="1"/>',
            '    <ClassDef glyph="zero" class="2"/>',
            "  </ClassDef2>",
            "  <!-- Class1Count=2 -->",
            "  <!-- Class2Count=3 -->",
            '  <Class1Record index="0">',
            '    <Class2Record index="0">',
            "    </Class2Record>",
            '    <Class2Record index="1">',
            "    </Class2Record>",
            '    <Class2Record index="2">',
            '      <Value1 XPlacement="-80" YPlacement="-20"/>',
            '      <Value2 XPlacement="-50"/>',
            "    </Class2Record>",
            "  </Class1Record>",
            '  <Class1Record index="1">',
            '    <Class2Record index="0">',
            "    </Class2Record>",
            '    <Class2Record index="1">',
            '      <Value2 XPlacement="-20"/>',
            "    </Class2Record>",
            '    <Class2Record index="2">',
            "      <Value1/>",
            '      <Value2 XPlacement="-50"/>',
            "    </Class2Record>",
            "  </Class1Record>",
            "</PairPos>",
        ]

    def test_buildPairPosGlyphs(self):
        d50 = builder.buildValue({"XPlacement": -50})
        d8020 = builder.buildValue({"XPlacement": -80, "YPlacement": -20})
        subtables = builder.buildPairPosGlyphs(
            {("A", "zero"): (None, d50), ("A", "one"): (d8020, d50)}, self.GLYPHMAP
        )
        assert sum([getXML(t.toXML) for t in subtables], []) == [
            '<PairPos Format="1">',
            "  <Coverage>",
            '    <Glyph value="A"/>',
            "  </Coverage>",
            '  <ValueFormat1 value="0"/>',
            '  <ValueFormat2 value="1"/>',
            "  <!-- PairSetCount=1 -->",
            '  <PairSet index="0">',
            "    <!-- PairValueCount=1 -->",
            '    <PairValueRecord index="0">',
            '      <SecondGlyph value="zero"/>',
            '      <Value2 XPlacement="-50"/>',
            "    </PairValueRecord>",
            "  </PairSet>",
            "</PairPos>",
            '<PairPos Format="1">',
            "  <Coverage>",
            '    <Glyph value="A"/>',
            "  </Coverage>",
            '  <ValueFormat1 value="3"/>',
            '  <ValueFormat2 value="1"/>',
            "  <!-- PairSetCount=1 -->",
            '  <PairSet index="0">',
            "    <!-- PairValueCount=1 -->",
            '    <PairValueRecord index="0">',
            '      <SecondGlyph value="one"/>',
            '      <Value1 XPlacement="-80" YPlacement="-20"/>',
            '      <Value2 XPlacement="-50"/>',
            "    </PairValueRecord>",
            "  </PairSet>",
            "</PairPos>",
        ]

    def test_buildPairPosGlyphsSubtable(self):
        d20 = builder.buildValue({"XPlacement": -20})
        d50 = builder.buildValue({"XPlacement": -50})
        d0 = builder.buildValue({})
        d8020 = builder.buildValue({"XPlacement": -80, "YPlacement": -20})
        subtable = builder.buildPairPosGlyphsSubtable(
            {
                ("A", "zero"): (d0, d50),
                ("A", "one"): (None, d20),
                ("B", "five"): (d8020, d50),
            },
            self.GLYPHMAP,
        )
        assert getXML(subtable.toXML) == [
            '<PairPos Format="1">',
            "  <Coverage>",
            '    <Glyph value="A"/>',
            '    <Glyph value="B"/>',
            "  </Coverage>",
            '  <ValueFormat1 value="3"/>',
            '  <ValueFormat2 value="1"/>',
            "  <!-- PairSetCount=2 -->",
            '  <PairSet index="0">',
            "    <!-- PairValueCount=2 -->",
            '    <PairValueRecord index="0">',
            '      <SecondGlyph value="zero"/>',
            '      <Value2 XPlacement="-50"/>',
            "    </PairValueRecord>",
            '    <PairValueRecord index="1">',
            '      <SecondGlyph value="one"/>',
            '      <Value2 XPlacement="-20"/>',
            "    </PairValueRecord>",
            "  </PairSet>",
            '  <PairSet index="1">',
            "    <!-- PairValueCount=1 -->",
            '    <PairValueRecord index="0">',
            '      <SecondGlyph value="five"/>',
            '      <Value1 XPlacement="-80" YPlacement="-20"/>',
            '      <Value2 XPlacement="-50"/>',
            "    </PairValueRecord>",
            "  </PairSet>",
            "</PairPos>",
        ]

    def test_buildSinglePos(self):
        subtables = builder.buildSinglePos(
            {
                "one": builder.buildValue({"XPlacement": 500}),
                "two": builder.buildValue({"XPlacement": 500}),
                "three": builder.buildValue({"XPlacement": 200}),
                "four": builder.buildValue({"XPlacement": 400}),
                "five": builder.buildValue({"XPlacement": 500}),
                "six": builder.buildValue({"YPlacement": -6}),
            },
            self.GLYPHMAP,
        )
        assert sum([getXML(t.toXML) for t in subtables], []) == [
            '<SinglePos Format="2">',
            "  <Coverage>",
            '    <Glyph value="one"/>',
            '    <Glyph value="two"/>',
            '    <Glyph value="three"/>',
            '    <Glyph value="four"/>',
            '    <Glyph value="five"/>',
            "  </Coverage>",
            '  <ValueFormat value="1"/>',
            "  <!-- ValueCount=5 -->",
            '  <Value index="0" XPlacement="500"/>',
            '  <Value index="1" XPlacement="500"/>',
            '  <Value index="2" XPlacement="200"/>',
            '  <Value index="3" XPlacement="400"/>',
            '  <Value index="4" XPlacement="500"/>',
            "</SinglePos>",
            '<SinglePos Format="1">',
            "  <Coverage>",
            '    <Glyph value="six"/>',
            "  </Coverage>",
            '  <ValueFormat value="2"/>',
            '  <Value YPlacement="-6"/>',
            "</SinglePos>",
        ]

    def test_buildSinglePos_ValueFormat0(self):
        subtables = builder.buildSinglePos(
            {"zero": builder.buildValue({})}, self.GLYPHMAP
        )
        assert sum([getXML(t.toXML) for t in subtables], []) == [
            '<SinglePos Format="1">',
            "  <Coverage>",
            '    <Glyph value="zero"/>',
            "  </Coverage>",
            '  <ValueFormat value="0"/>',
            "</SinglePos>",
        ]

    def test_buildSinglePosSubtable_format1(self):
        subtable = builder.buildSinglePosSubtable(
            {
                "one": builder.buildValue({"XPlacement": 777}),
                "two": builder.buildValue({"XPlacement": 777}),
            },
            self.GLYPHMAP,
        )
        assert getXML(subtable.toXML) == [
            '<SinglePos Format="1">',
            "  <Coverage>",
            '    <Glyph value="one"/>',
            '    <Glyph value="two"/>',
            "  </Coverage>",
            '  <ValueFormat value="1"/>',
            '  <Value XPlacement="777"/>',
            "</SinglePos>",
        ]

    def test_buildSinglePosSubtable_format2(self):
        subtable = builder.buildSinglePosSubtable(
            {
                "one": builder.buildValue({"XPlacement": 777}),
                "two": builder.buildValue({"YPlacement": -888}),
            },
            self.GLYPHMAP,
        )
        assert getXML(subtable.toXML) == [
            '<SinglePos Format="2">',
            "  <Coverage>",
            '    <Glyph value="one"/>',
            '    <Glyph value="two"/>',
            "  </Coverage>",
            '  <ValueFormat value="3"/>',
            "  <!-- ValueCount=2 -->",
            '  <Value index="0" XPlacement="777"/>',
            '  <Value index="1" YPlacement="-888"/>',
            "</SinglePos>",
        ]

    def test_buildValue(self):
        value = builder.buildValue({"XPlacement": 7, "YPlacement": 23})
        func = lambda writer, font: value.toXML(writer, font, valueName="Val")
        assert getXML(func) == ['<Val XPlacement="7" YPlacement="23"/>']

    def test_getLigatureKey(self):
        components = lambda s: [tuple(word) for word in s.split()]
        c = components("fi fl ff ffi fff")
        c.sort(key=builder._getLigatureKey)
        assert c == components("fff ffi ff fi fl")

    def test_getSinglePosValueKey(self):
        device = builder.buildDevice({10: 1, 11: 3})
        a1 = builder.buildValue({"XPlacement": 500, "XPlaDevice": device})
        a2 = builder.buildValue({"XPlacement": 500, "XPlaDevice": device})
        b = builder.buildValue({"XPlacement": 500})
        keyA1 = builder._getSinglePosValueKey(a1)
        keyA2 = builder._getSinglePosValueKey(a1)
        keyB = builder._getSinglePosValueKey(b)
        assert keyA1 == keyA2
        assert hash(keyA1) == hash(keyA2)
        assert keyA1 != keyB
        assert hash(keyA1) != hash(keyB)


class ClassDefBuilderTest(object):
    def test_build_usingClass0(self):
        b = builder.ClassDefBuilder(useClass0=True)
        b.add({"aa", "bb"})
        b.add({"a", "b"})
        b.add({"c"})
        b.add({"e", "f", "g", "h"})
        cdef = b.build()
        assert isinstance(cdef, otTables.ClassDef)
        assert cdef.classDefs == {"a": 2, "b": 2, "c": 3, "aa": 1, "bb": 1}

    def test_build_notUsingClass0(self):
        b = builder.ClassDefBuilder(useClass0=False)
        b.add({"a", "b"})
        b.add({"c"})
        b.add({"e", "f", "g", "h"})
        cdef = b.build()
        assert isinstance(cdef, otTables.ClassDef)
        assert cdef.classDefs == {
            "a": 2,
            "b": 2,
            "c": 3,
            "e": 1,
            "f": 1,
            "g": 1,
            "h": 1,
        }

    def test_canAdd(self):
        b = builder.ClassDefBuilder(useClass0=True)
        b.add({"a", "b", "c", "d"})
        b.add({"e", "f"})
        assert b.canAdd({"a", "b", "c", "d"})
        assert b.canAdd({"e", "f"})
        assert b.canAdd({"g", "h", "i"})
        assert not b.canAdd({"b", "c", "d"})
        assert not b.canAdd({"a", "b", "c", "d", "e", "f"})
        assert not b.canAdd({"d", "e", "f"})
        assert not b.canAdd({"f"})


buildStatTable_test_data = [
    ([
        dict(
            tag="wght",
            name="Weight",
            values=[
                dict(value=100, name='Thin'),
                dict(value=400, name='Regular', flags=0x2),
                dict(value=900, name='Black')])], None, "Regular", [
        '  <STAT>',
        '    <Version value="0x00010001"/>',
        '    <DesignAxisRecordSize value="8"/>',
        '    <!-- DesignAxisCount=1 -->',
        '    <DesignAxisRecord>',
        '      <Axis index="0">',
        '        <AxisTag value="wght"/>',
        '        <AxisNameID value="257"/>  <!-- Weight -->',
        '        <AxisOrdering value="0"/>',
        '      </Axis>',
        '    </DesignAxisRecord>',
        '    <!-- AxisValueCount=3 -->',
        '    <AxisValueArray>',
        '      <AxisValue index="0" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="258"/>  <!-- Thin -->',
        '        <Value value="100.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="1" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="256"/>  <!-- Regular -->',
        '        <Value value="400.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="2" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="259"/>  <!-- Black -->',
        '        <Value value="900.0"/>',
        '      </AxisValue>',
        '    </AxisValueArray>',
        '    <ElidedFallbackNameID value="256"/>  <!-- Regular -->',
        '  </STAT>']),
    ([
        dict(
            tag="wght",
            name=dict(en="Weight", nl="Gewicht"),
            values=[
                dict(value=100, name=dict(en='Thin', nl='Dun')),
                dict(value=400, name='Regular', flags=0x2),
                dict(value=900, name='Black'),
            ]),
        dict(
            tag="wdth",
            name="Width",
            values=[
                dict(value=50, name='Condensed'),
                dict(value=100, name='Regular', flags=0x2),
                dict(value=200, name='Extended')])], None, 2, [
        '  <STAT>',
        '    <Version value="0x00010001"/>',
        '    <DesignAxisRecordSize value="8"/>',
        '    <!-- DesignAxisCount=2 -->',
        '    <DesignAxisRecord>',
        '      <Axis index="0">',
        '        <AxisTag value="wght"/>',
        '        <AxisNameID value="256"/>  <!-- Weight -->',
        '        <AxisOrdering value="0"/>',
        '      </Axis>',
        '      <Axis index="1">',
        '        <AxisTag value="wdth"/>',
        '        <AxisNameID value="260"/>  <!-- Width -->',
        '        <AxisOrdering value="1"/>',
        '      </Axis>',
        '    </DesignAxisRecord>',
        '    <!-- AxisValueCount=6 -->',
        '    <AxisValueArray>',
        '      <AxisValue index="0" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="257"/>  <!-- Thin -->',
        '        <Value value="100.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="1" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="258"/>  <!-- Regular -->',
        '        <Value value="400.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="2" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="259"/>  <!-- Black -->',
        '        <Value value="900.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="3" Format="1">',
        '        <AxisIndex value="1"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="261"/>  <!-- Condensed -->',
        '        <Value value="50.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="4" Format="1">',
        '        <AxisIndex value="1"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="258"/>  <!-- Regular -->',
        '        <Value value="100.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="5" Format="1">',
        '        <AxisIndex value="1"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="262"/>  <!-- Extended -->',
        '        <Value value="200.0"/>',
        '      </AxisValue>',
        '    </AxisValueArray>',
        '    <ElidedFallbackNameID value="2"/>  <!-- missing from name table -->',
        '  </STAT>']),
    ([
        dict(
            tag="wght",
            name="Weight",
            values=[
                dict(value=400, name='Regular', flags=0x2),
                dict(value=600, linkedValue=650, name='Bold')])], None, 18, [
        '  <STAT>',
        '    <Version value="0x00010001"/>',
        '    <DesignAxisRecordSize value="8"/>',
        '    <!-- DesignAxisCount=1 -->',
        '    <DesignAxisRecord>',
        '      <Axis index="0">',
        '        <AxisTag value="wght"/>',
        '        <AxisNameID value="256"/>  <!-- Weight -->',
        '        <AxisOrdering value="0"/>',
        '      </Axis>',
        '    </DesignAxisRecord>',
        '    <!-- AxisValueCount=2 -->',
        '    <AxisValueArray>',
        '      <AxisValue index="0" Format="1">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="257"/>  <!-- Regular -->',
        '        <Value value="400.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="1" Format="3">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="258"/>  <!-- Bold -->',
        '        <Value value="600.0"/>',
        '        <LinkedValue value="650.0"/>',
        '      </AxisValue>',
        '    </AxisValueArray>',
        '    <ElidedFallbackNameID value="18"/>  <!-- missing from name table -->',
        '  </STAT>']),
    ([
        dict(
            tag="opsz",
            name="Optical Size",
            values=[
                dict(nominalValue=6, rangeMaxValue=10, name='Small'),
                dict(rangeMinValue=10, nominalValue=14, rangeMaxValue=24, name='Text', flags=0x2),
                dict(rangeMinValue=24, nominalValue=600, name='Display')])], None, 2, [
        '  <STAT>',
        '    <Version value="0x00010001"/>',
        '    <DesignAxisRecordSize value="8"/>',
        '    <!-- DesignAxisCount=1 -->',
        '    <DesignAxisRecord>',
        '      <Axis index="0">',
        '        <AxisTag value="opsz"/>',
        '        <AxisNameID value="256"/>  <!-- Optical Size -->',
        '        <AxisOrdering value="0"/>',
        '      </Axis>',
        '    </DesignAxisRecord>',
        '    <!-- AxisValueCount=3 -->',
        '    <AxisValueArray>',
        '      <AxisValue index="0" Format="2">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="257"/>  <!-- Small -->',
        '        <NominalValue value="6.0"/>',
        '        <RangeMinValue value="-32768.0"/>',
        '        <RangeMaxValue value="10.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="1" Format="2">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="258"/>  <!-- Text -->',
        '        <NominalValue value="14.0"/>',
        '        <RangeMinValue value="10.0"/>',
        '        <RangeMaxValue value="24.0"/>',
        '      </AxisValue>',
        '      <AxisValue index="2" Format="2">',
        '        <AxisIndex value="0"/>',
        '        <Flags value="0"/>',
        '        <ValueNameID value="259"/>  <!-- Display -->',
        '        <NominalValue value="600.0"/>',
        '        <RangeMinValue value="24.0"/>',
        '        <RangeMaxValue value="32767.99998"/>',
        '      </AxisValue>',
        '    </AxisValueArray>',
        '    <ElidedFallbackNameID value="2"/>  <!-- missing from name table -->',
        '  </STAT>']),
    ([
        dict(
            tag="wght",
            name="Weight",
            ordering=1,
            values=[]),
        dict(
            tag="ABCD",
            name="ABCDTest",
            ordering=0,
            values=[
                dict(value=100, name="Regular", flags=0x2)])],
     [dict(location=dict(wght=300, ABCD=100), name='Regular ABCD')], 18, [
        '  <STAT>',
        '    <Version value="0x00010002"/>',
        '    <DesignAxisRecordSize value="8"/>',
        '    <!-- DesignAxisCount=2 -->',
        '    <DesignAxisRecord>',
        '      <Axis index="0">',
        '        <AxisTag value="wght"/>',
        '        <AxisNameID value="256"/>  <!-- Weight -->',
        '        <AxisOrdering value="1"/>',
        '      </Axis>',
        '      <Axis index="1">',
        '        <AxisTag value="ABCD"/>',
        '        <AxisNameID value="257"/>  <!-- ABCDTest -->',
        '        <AxisOrdering value="0"/>',
        '      </Axis>',
        '    </DesignAxisRecord>',
        '    <!-- AxisValueCount=2 -->',
        '    <AxisValueArray>',
        '      <AxisValue index="0" Format="4">',
        '        <!-- AxisCount=2 -->',
        '        <Flags value="0"/>',
        '        <ValueNameID value="259"/>  <!-- Regular ABCD -->',
        '        <AxisValueRecord index="0">',
        '          <AxisIndex value="0"/>',
        '          <Value value="300.0"/>',
        '        </AxisValueRecord>',
        '        <AxisValueRecord index="1">',
        '          <AxisIndex value="1"/>',
        '          <Value value="100.0"/>',
        '        </AxisValueRecord>',
        '      </AxisValue>',
        '      <AxisValue index="1" Format="1">',
        '        <AxisIndex value="1"/>',
        '        <Flags value="2"/>',
        '        <ValueNameID value="258"/>  <!-- Regular -->',
        '        <Value value="100.0"/>',
        '      </AxisValue>',
        '    </AxisValueArray>',
        '    <ElidedFallbackNameID value="18"/>  <!-- missing from name table -->',
        '  </STAT>']),
]


@pytest.mark.parametrize("axes, axisValues, elidedFallbackName, expected_ttx", buildStatTable_test_data)
def test_buildStatTable(axes, axisValues, elidedFallbackName, expected_ttx):
    font = ttLib.TTFont()
    font["name"] = ttLib.newTable("name")
    font["name"].names = []
    # https://github.com/fonttools/fonttools/issues/1985
    # Add nameID < 256 that matches a test axis name, to test whether
    # the nameID is not reused: AxisNameIDs must be > 255 according
    # to the spec.
    font["name"].addMultilingualName(dict(en="ABCDTest"), nameID=6)
    builder.buildStatTable(font, axes, axisValues, elidedFallbackName)
    f = io.StringIO()
    font.saveXML(f, tables=["STAT"])
    ttx = f.getvalue().splitlines()
    ttx = ttx[3:-2]  # strip XML header and <ttFont> element
    assert expected_ttx == ttx
    # Compile and round-trip
    f = io.BytesIO()
    font.save(f)
    font = ttLib.TTFont(f)
    f = io.StringIO()
    font.saveXML(f, tables=["STAT"])
    ttx = f.getvalue().splitlines()
    ttx = ttx[3:-2]  # strip XML header and <ttFont> element
    assert expected_ttx == ttx


def test_stat_infinities():
    negInf = floatToFixed(builder.AXIS_VALUE_NEGATIVE_INFINITY, 16)
    assert struct.pack(">l", negInf) == b"\x80\x00\x00\x00"
    posInf = floatToFixed(builder.AXIS_VALUE_POSITIVE_INFINITY, 16)
    assert struct.pack(">l", posInf) == b"\x7f\xff\xff\xff"


class ChainContextualRulesetTest(object):
    def test_makeRulesets(self):
        font = ttLib.TTFont()
        font.setGlyphOrder(["a","b","c","d","A","B","C","D","E"])
        sb = builder.ChainContextSubstBuilder(font, None)
        prefix, input_, suffix, lookups = [["a"], ["b"]], [["c"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))

        prefix, input_, suffix, lookups = [["a"], ["d"]], [["c"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))

        sb.add_subtable_break(None)

        # Second subtable has some glyph classes
        prefix, input_, suffix, lookups = [["A"]], [["E"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))
        prefix, input_, suffix, lookups = [["A"]], [["C","D"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))
        prefix, input_, suffix, lookups = [["A", "B"]], [["E"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))

        sb.add_subtable_break(None)

        # Third subtable has no pre/post context
        prefix, input_, suffix, lookups = [], [["E"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))
        prefix, input_, suffix, lookups = [], [["C","D"]], [], [None]
        sb.rules.append(builder.ChainContextualRule(prefix, input_, suffix, lookups))

        rulesets = sb.rulesets()
        assert len(rulesets) == 3
        assert rulesets[0].hasPrefixOrSuffix
        assert not rulesets[0].hasAnyGlyphClasses
        cd = rulesets[0].format2ClassDefs()
        assert set(cd[0].classes()[1:]) == set([("d",),("b",),("a",)])
        assert set(cd[1].classes()[1:]) == set([("c",)])
        assert set(cd[2].classes()[1:]) == set()

        assert rulesets[1].hasPrefixOrSuffix
        assert rulesets[1].hasAnyGlyphClasses
        assert not rulesets[1].format2ClassDefs()

        assert not rulesets[2].hasPrefixOrSuffix
        assert rulesets[2].hasAnyGlyphClasses
        assert rulesets[2].format2ClassDefs()
        cd = rulesets[2].format2ClassDefs()
        assert set(cd[0].classes()[1:]) == set()
        assert set(cd[1].classes()[1:]) == set([("C","D"), ("E",)])
        assert set(cd[2].classes()[1:]) == set()


if __name__ == "__main__":
    import sys

    sys.exit(pytest.main(sys.argv))
