blob: 91e429741a6c98ebc345bbbd69ecf8ed05b44bd2 [file] [log] [blame]
// Copyright (c) 2011-2017 The OTS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <cmath>
#include <vector>
#include <gtest/gtest.h>
#include "layout.h"
#include "ots-memory-stream.h"
namespace {
const uint32_t kFakeTag = 0x00000000;
const size_t kScriptRecordSize = 6;
const size_t kLangSysRecordSize = 6;
bool BuildFakeScriptListTable(ots::OTSStream *out, const uint16_t script_count,
const uint16_t langsys_count,
const uint16_t feature_count) {
if (!out->WriteU16(script_count)) {
return false;
}
const off_t script_record_end = out->Tell() +
kScriptRecordSize * script_count;
const size_t script_table_size = 4 + kLangSysRecordSize * langsys_count;
for (unsigned i = 0; i < script_count; ++i) {
if (!out->WriteU32(kFakeTag) ||
!out->WriteU16(script_record_end + i * script_table_size)) {
return false;
}
}
// Offsets to LangSys tables are measured from the beginning of each
// script table.
const off_t langsys_record_end = 4 + kLangSysRecordSize * langsys_count;
const size_t langsys_table_size = 6 + 2 * feature_count;
// Write Fake Script tables.
for (unsigned i = 0; i < script_count; ++i) {
if (!out->WriteU16(0x0000) ||
!out->WriteU16(langsys_count)) {
return false;
}
for (unsigned j = 0; j < langsys_count; ++j) {
if (!out->WriteU32(kFakeTag) ||
!out->WriteU16(langsys_record_end + j * langsys_table_size)) {
return false;
}
}
}
// Write Fake LangSys tables.
for (unsigned i = 0; i < langsys_count; ++i) {
if (!out->WriteU16(0x0000) ||
!out->WriteU16(0xFFFF) ||
!out->WriteU16(feature_count)) {
return false;
}
for (unsigned j = 0; j < feature_count; ++j) {
if (!out->WriteU16(j)) {
return false;
}
}
}
return true;
}
const size_t kFeatureRecordSize = 6;
bool BuildFakeFeatureListTable(ots::OTSStream *out,
const uint16_t feature_count,
const uint16_t lookup_count) {
if (!out->WriteU16(feature_count)) {
return false;
}
const off_t feature_record_end = out->Tell() +
kFeatureRecordSize * feature_count;
const size_t feature_table_size = 4 + 2 * lookup_count;
for (unsigned i = 0; i < feature_count; ++i) {
if (!out->WriteU32(kFakeTag) ||
!out->WriteU16(feature_record_end + i * feature_table_size)) {
return false;
}
}
// Write FeatureTable
for (unsigned i = 0; i < feature_count; ++i) {
if (!out->WriteU16(0x0000) ||
!out->WriteU16(lookup_count)) {
return false;
}
for (uint16_t j = 0; j < lookup_count; ++j) {
if (!out->WriteU16(j)) {
return false;
}
}
}
return true;
}
bool BuildFakeLookupListTable(ots::OTSStream *out, const uint16_t lookup_count,
const uint16_t subtable_count) {
if (!out->WriteU16(lookup_count)) {
return false;
}
const off_t base_offset_lookup = out->Tell();
if (!out->Pad(2 * lookup_count)) {
return false;
}
std::vector<off_t> offsets_lookup(lookup_count, 0);
for (uint16_t i = 0; i < lookup_count; ++i) {
offsets_lookup[i] = out->Tell();
if (!out->WriteU16(i + 1) ||
!out->WriteU16(0) ||
!out->WriteU16(subtable_count) ||
!out->Pad(2 * subtable_count) ||
!out->WriteU16(0)) {
return false;
}
}
const off_t offset_lookup_table_end = out->Tell();
// Allocate 256 bytes for each subtable.
if (!out->Pad(256 * lookup_count * subtable_count)) {
return false;
}
if (!out->Seek(base_offset_lookup)) {
return false;
}
for (unsigned i = 0; i < lookup_count; ++i) {
if (!out->WriteU16(offsets_lookup[i])) {
return false;
}
}
for (unsigned i = 0; i < lookup_count; ++i) {
if (!out->Seek(offsets_lookup[i] + 6)) {
return false;
}
for (unsigned j = 0; j < subtable_count; ++j) {
if (!out->WriteU16(offset_lookup_table_end +
256*i*subtable_count + 256*j)) {
return false;
}
}
}
return true;
}
bool BuildFakeCoverageFormat1(ots::OTSStream *out, const uint16_t glyph_count) {
if (!out->WriteU16(1) || !out->WriteU16(glyph_count)) {
return false;
}
for (uint16_t glyph_id = 1; glyph_id <= glyph_count; ++glyph_id) {
if (!out->WriteU16(glyph_id)) {
return false;
}
}
return true;
}
bool BuildFakeCoverageFormat2(ots::OTSStream *out, const uint16_t range_count) {
if (!out->WriteU16(2) || !out->WriteU16(range_count)) {
return false;
}
uint16_t glyph_id = 1;
uint16_t start_coverage_index = 0;
for (unsigned i = 0; i < range_count; ++i) {
// Write consecutive ranges in which each range consists of two glyph id.
if (!out->WriteU16(glyph_id) ||
!out->WriteU16(glyph_id + 1) ||
!out->WriteU16(start_coverage_index)) {
return false;
}
glyph_id += 2;
start_coverage_index += 2;
}
return true;
}
bool BuildFakeClassDefFormat1(ots::OTSStream *out, const uint16_t glyph_count) {
if (!out->WriteU16(1) ||
!out->WriteU16(1) ||
!out->WriteU16(glyph_count)) {
return false;
}
for (uint16_t class_value = 1; class_value <= glyph_count; ++class_value) {
if (!out->WriteU16(class_value)) {
return false;
}
}
return true;
}
bool BuildFakeClassDefFormat2(ots::OTSStream *out, const uint16_t range_count) {
if (!out->WriteU16(2) || !out->WriteU16(range_count)) {
return false;
}
uint16_t glyph_id = 1;
for (uint16_t class_value = 1; class_value <= range_count; ++class_value) {
// Write consecutive ranges in which each range consists of one glyph id.
if (!out->WriteU16(glyph_id) ||
!out->WriteU16(glyph_id + 1) ||
!out->WriteU16(class_value)) {
return false;
}
glyph_id += 2;
}
return true;
}
bool BuildFakeDeviceTable(ots::OTSStream *out, const uint16_t start_size,
const uint16_t end_size, const uint16_t format) {
if (!out->WriteU16(start_size) ||
!out->WriteU16(end_size) ||
!out->WriteU16(format)) {
return false;
}
const unsigned num_values = std::abs(end_size - start_size) + 1;
const unsigned num_bits = (1 << format) * num_values;
const unsigned num_units = (num_bits - 1) / 16 + 1;
if (!out->Pad(num_units * 2)) {
return false;
}
return true;
}
class TestStream : public ots::MemoryStream {
public:
TestStream()
: ots::MemoryStream(data_, sizeof(data_)), size_(0) {
std::memset(reinterpret_cast<char*>(data_), 0, sizeof(data_));
}
uint8_t* data() { return data_; }
size_t size() const { return size_; }
virtual bool WriteRaw(const void *d, size_t length) {
if (Tell() + length > size_) {
size_ = Tell() + length;
}
return ots::MemoryStream::WriteRaw(d, length);
}
private:
size_t size_;
uint8_t data_[4096];
};
class TableTest : public ::testing::Test {
protected:
virtual void SetUp() {
ots::FontFile *file = new ots::FontFile();
file->context = new ots::OTSContext();
font = new ots::Font(file);
}
virtual void TearDown() {
delete font->file->context;
delete font->file;
delete font;
}
TestStream out;
ots::Font *font;
};
class ScriptListTableTest : public TableTest { };
class DeviceTableTest : public TableTest { };
class CoverageTableTest : public TableTest { };
class CoverageFormat1Test : public TableTest { };
class CoverageFormat2Test : public TableTest { };
class ClassDefTableTest : public TableTest { };
class ClassDefFormat1Test : public TableTest { };
class ClassDefFormat2Test : public TableTest { };
class LookupSubtableParserTest : public TableTest { };
class FeatureListTableTest : public TableTest {
protected:
virtual void SetUp() {
TableTest::SetUp();
num_features = 0;
}
uint16_t num_features;
};
bool fakeTypeParserReturnsTrue(const ots::Font*, const uint8_t *,
const size_t) {
return true;
}
bool fakeTypeParserReturnsFalse(const ots::Font*, const uint8_t *,
const size_t) {
return false;
}
const ots::LookupSubtableParser::TypeParser TypeParsersReturnTrue[] = {
{1, fakeTypeParserReturnsTrue},
{2, fakeTypeParserReturnsTrue},
{3, fakeTypeParserReturnsTrue},
{4, fakeTypeParserReturnsTrue},
{5, fakeTypeParserReturnsTrue}
};
// Fake lookup subtable parser which always returns true.
const ots::LookupSubtableParser FakeLookupParserReturnsTrue = {
5, 5, TypeParsersReturnTrue,
};
const ots::LookupSubtableParser::TypeParser TypeParsersReturnFalse[] = {
{1, fakeTypeParserReturnsFalse}
};
// Fake lookup subtable parser which always returns false.
const ots::LookupSubtableParser FakeLookupParserReturnsFalse = {
1, 1, TypeParsersReturnFalse
};
class LookupListTableTest : public TableTest {
protected:
virtual void SetUp() {
TableTest::SetUp();
num_lookups = 0;
}
bool Parse() {
return ots::ParseLookupListTable(font, out.data(), out.size(),
&FakeLookupParserReturnsTrue,
&num_lookups);
}
uint16_t num_lookups;
};
} // namespace
TEST_F(ScriptListTableTest, TestSuccess) {
BuildFakeScriptListTable(&out, 1, 1, 1);
EXPECT_TRUE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestBadScriptCount) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set too large script count.
out.Seek(0);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestScriptRecordOffsetUnderflow) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set bad offset to ScriptRecord[0].
out.Seek(6);
out.WriteU16(0);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestScriptRecordOffsetOverflow) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set bad offset to ScriptRecord[0].
out.Seek(6);
out.WriteU16(out.size());
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestBadLangSysCount) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set too large langsys count.
out.Seek(10);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestLangSysRecordOffsetUnderflow) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set bad offset to LangSysRecord[0].
out.Seek(16);
out.WriteU16(0);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestLangSysRecordOffsetOverflow) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set bad offset to LangSysRecord[0].
out.Seek(16);
out.WriteU16(out.size());
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestBadReqFeatureIndex) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set too large feature index to ReqFeatureIndex of LangSysTable[0].
out.Seek(20);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestBadFeatureCount) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set too large feature count to LangSysTable[0].
out.Seek(22);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(ScriptListTableTest, TestBadFeatureIndex) {
BuildFakeScriptListTable(&out, 1, 1, 1);
// Set too large feature index to ReatureIndex[0] of LangSysTable[0].
out.Seek(24);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseScriptListTable(font, out.data(), out.size(), 1));
}
TEST_F(FeatureListTableTest, TestSuccess) {
BuildFakeFeatureListTable(&out, 1, 1);
EXPECT_TRUE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
EXPECT_EQ(num_features, 1);
}
TEST_F(FeatureListTableTest, TestSuccess2) {
BuildFakeFeatureListTable(&out, 5, 1);
EXPECT_TRUE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
EXPECT_EQ(num_features, 5);
}
TEST_F(FeatureListTableTest, TestBadFeatureCount) {
BuildFakeFeatureListTable(&out, 1, 1);
// Set too large feature count.
out.Seek(0);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
}
TEST_F(FeatureListTableTest, TestOffsetFeatureUnderflow) {
BuildFakeFeatureListTable(&out, 1, 1);
// Set bad offset to FeatureRecord[0].
out.Seek(6);
out.WriteU16(0);
EXPECT_FALSE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
}
TEST_F(FeatureListTableTest, TestOffsetFeatureOverflow) {
BuildFakeFeatureListTable(&out, 1, 1);
// Set bad offset to FeatureRecord[0].
out.Seek(6);
out.WriteU16(out.size());
EXPECT_FALSE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
}
TEST_F(FeatureListTableTest, TestBadLookupCount) {
BuildFakeFeatureListTable(&out, 1, 1);
// Set too large lookup count to FeatureTable[0].
out.Seek(10);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseFeatureListTable(font, out.data(), out.size(), 1,
&num_features));
}
TEST_F(LookupListTableTest, TestSuccess) {
BuildFakeLookupListTable(&out, 1, 1);
EXPECT_TRUE(Parse());
EXPECT_EQ(num_lookups, 1);
}
TEST_F(LookupListTableTest, TestSuccess2) {
BuildFakeLookupListTable(&out, 5, 1);
EXPECT_TRUE(Parse());
EXPECT_EQ(num_lookups, 5);
}
TEST_F(LookupListTableTest, TestOffsetLookupTableUnderflow) {
BuildFakeLookupListTable(&out, 1, 1);
// Set bad offset to Lookup[0].
out.Seek(2);
out.WriteU16(0);
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TestOffsetLookupTableOverflow) {
BuildFakeLookupListTable(&out, 1, 1);
// Set bad offset to Lookup[0].
out.Seek(2);
out.WriteU16(out.size());
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TestOffsetSubtableUnderflow) {
BuildFakeLookupListTable(&out, 1, 1);
// Set bad offset to SubTable[0] of LookupTable[0].
out.Seek(10);
out.WriteU16(0);
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TestOffsetSubtableOverflow) {
BuildFakeLookupListTable(&out, 1, 1);
// Set bad offset to SubTable[0] of LookupTable[0].
out.Seek(10);
out.WriteU16(out.size());
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TesBadLookupCount) {
BuildFakeLookupListTable(&out, 1, 1);
// Set too large lookup count of LookupTable[0].
out.Seek(0);
out.WriteU16(2);
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TesBadLookupType) {
BuildFakeLookupListTable(&out, 1, 1);
// Set too large lookup type of LookupTable[0].
out.Seek(4);
out.WriteU16(6);
EXPECT_FALSE(Parse());
}
TEST_F(LookupListTableTest, TesBadLookupFlag) {
BuildFakeLookupListTable(&out, 1, 1);
// Set IgnoreBaseGlyphs(0x0002) to the lookup flag of LookupTable[0].
out.Seek(6);
out.WriteU16(0x0002);
EXPECT_TRUE(Parse());
}
TEST_F(LookupListTableTest, TesBadSubtableCount) {
BuildFakeLookupListTable(&out, 1, 1);
// Set too large sutable count of LookupTable[0].
out.Seek(8);
out.WriteU16(2);
EXPECT_FALSE(Parse());
}
TEST_F(CoverageTableTest, TestSuccessFormat1) {
BuildFakeCoverageFormat1(&out, 1);
EXPECT_TRUE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageTableTest, TestSuccessFormat2) {
BuildFakeCoverageFormat2(&out, 1);
EXPECT_TRUE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageTableTest, TestBadFormat) {
BuildFakeCoverageFormat1(&out, 1);
// Set bad format.
out.Seek(0);
out.WriteU16(3);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageFormat1Test, TestBadGlyphCount) {
BuildFakeCoverageFormat1(&out, 1);
// Set too large glyph count.
out.Seek(2);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageFormat1Test, TestBadGlyphId) {
BuildFakeCoverageFormat1(&out, 1);
// Set too large glyph id.
out.Seek(4);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageFormat2Test, TestBadRangeCount) {
BuildFakeCoverageFormat2(&out, 1);
// Set too large range count.
out.Seek(2);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageFormat2Test, TestBadRange) {
BuildFakeCoverageFormat2(&out, 1);
// Set reverse order glyph id to start/end fields.
out.Seek(4);
out.WriteU16(2);
out.WriteU16(1);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 1));
}
TEST_F(CoverageFormat2Test, TestRangeOverlap) {
BuildFakeCoverageFormat2(&out, 2);
// Set overlapping glyph id to an end field.
out.Seek(12);
out.WriteU16(1);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 2));
}
TEST_F(CoverageFormat2Test, TestRangeOverlap2) {
BuildFakeCoverageFormat2(&out, 2);
// Set overlapping range.
out.Seek(10);
out.WriteU16(1);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseCoverageTable(font, out.data(), out.size(), 2));
}
TEST_F(ClassDefTableTest, TestSuccessFormat1) {
BuildFakeClassDefFormat1(&out, 1);
EXPECT_TRUE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefTableTest, TestSuccessFormat2) {
BuildFakeClassDefFormat2(&out, 1);
EXPECT_TRUE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefTableTest, TestBadFormat) {
BuildFakeClassDefFormat1(&out, 1);
// Set bad format.
out.Seek(0);
out.WriteU16(3);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat1Test, TestBadStartGlyph) {
BuildFakeClassDefFormat1(&out, 1);
// Set too large start glyph id.
out.Seek(2);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat1Test, TestBadGlyphCount) {
BuildFakeClassDefFormat1(&out, 1);
// Set too large glyph count.
out.Seek(4);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat1Test, TestBadClassValue) {
BuildFakeClassDefFormat1(&out, 1);
// Set too large class value.
out.Seek(6);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat2Test, TestBadRangeCount) {
BuildFakeClassDefFormat2(&out, 1);
// Set too large range count.
out.Seek(2);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat2Test, TestRangeOverlap) {
BuildFakeClassDefFormat2(&out, 2);
// Set overlapping glyph id to an end field.
out.Seek(12);
out.WriteU16(1);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(ClassDefFormat2Test, TestRangeOverlap2) {
BuildFakeClassDefFormat2(&out, 2);
// Set overlapping range.
out.Seek(10);
out.WriteU16(1);
out.WriteU16(2);
EXPECT_FALSE(ots::ParseClassDefTable(font, out.data(), out.size(), 1, 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat1Success) {
BuildFakeDeviceTable(&out, 1, 8, 1);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat1Success2) {
BuildFakeDeviceTable(&out, 1, 9, 1);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat1Fail) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 8, 1);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat1Fail2) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 9, 1);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat2Success) {
BuildFakeDeviceTable(&out, 1, 1, 2);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat2Success2) {
BuildFakeDeviceTable(&out, 1, 8, 2);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat2Fail) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 8, 2);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat2Fail2) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 9, 2);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat3Success) {
BuildFakeDeviceTable(&out, 1, 1, 3);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat3Success2) {
BuildFakeDeviceTable(&out, 1, 8, 3);
EXPECT_TRUE(ots::ParseDeviceTable(font, out.data(), out.size()));
}
TEST_F(DeviceTableTest, TestDeltaFormat3Fail) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 8, 3);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(DeviceTableTest, TestDeltaFormat3Fail2) {
// Pass shorter length than expected.
BuildFakeDeviceTable(&out, 1, 9, 3);
EXPECT_FALSE(ots::ParseDeviceTable(font, out.data(), out.size() - 1));
}
TEST_F(LookupSubtableParserTest, TestSuccess) {
{
EXPECT_TRUE(FakeLookupParserReturnsTrue.Parse(font, 0, 0, 1));
}
{
EXPECT_TRUE(FakeLookupParserReturnsTrue.Parse(font, 0, 0, 5));
}
}
TEST_F(LookupSubtableParserTest, TestFail) {
{
// Pass bad lookup type which less than the smallest type.
EXPECT_FALSE(FakeLookupParserReturnsTrue.Parse(font, 0, 0, 0));
}
{
// Pass bad lookup type which greater than the maximum type.
EXPECT_FALSE(FakeLookupParserReturnsTrue.Parse(font, 0, 0, 6));
}
{
// Check the type parser failure.
EXPECT_FALSE(FakeLookupParserReturnsFalse.Parse(font, 0, 0, 1));
}
}