diff options
Diffstat (limited to 'core/fxcrt/fx_bidi_unittest.cpp')
| -rw-r--r-- | core/fxcrt/fx_bidi_unittest.cpp | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/core/fxcrt/fx_bidi_unittest.cpp b/core/fxcrt/fx_bidi_unittest.cpp new file mode 100644 index 0000000000..a3c148702b --- /dev/null +++ b/core/fxcrt/fx_bidi_unittest.cpp @@ -0,0 +1,365 @@ +// Copyright 2015 PDFium 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 "core/include/fxcrt/fx_bidi.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace { + +const FX_WCHAR kNeutralChar = 32; +const FX_WCHAR kLeftChar = 65; +const FX_WCHAR kRightChar = 1424; + +} // namespace + +TEST(fxcrt, BidiCharEmpty) { + CFX_BidiChar bidi; + CFX_BidiChar::Segment info; + + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, info.direction); + EXPECT_EQ(0, info.start); + EXPECT_EQ(0, info.count); + EXPECT_FALSE(bidi.EndChar()); +} + +TEST(fxcrt, BidiCharLeft) { + CFX_BidiChar bidi; + CFX_BidiChar::Segment info; + + EXPECT_TRUE(bidi.AppendChar(kLeftChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(0, info.start); + EXPECT_EQ(0, info.count); + + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, info.direction); + EXPECT_EQ(0, info.start); + EXPECT_EQ(0, info.count); + + EXPECT_TRUE(bidi.EndChar()); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::LEFT, info.direction); + EXPECT_EQ(0, info.start); + EXPECT_EQ(3, info.count); + + EXPECT_FALSE(bidi.EndChar()); +} + +TEST(fxcrt, BidiCharLeftNeutralRight) { + CFX_BidiChar bidi; + CFX_BidiChar::Segment info; + + EXPECT_TRUE(bidi.AppendChar(kLeftChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(0, info.start); + EXPECT_EQ(0, info.count); + + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + EXPECT_TRUE(bidi.AppendChar(kNeutralChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(0, info.start); + EXPECT_EQ(3, info.count); + + EXPECT_FALSE(bidi.AppendChar(kNeutralChar)); + EXPECT_FALSE(bidi.AppendChar(kNeutralChar)); + EXPECT_FALSE(bidi.AppendChar(kNeutralChar)); + EXPECT_TRUE(bidi.AppendChar(kRightChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, info.direction); + EXPECT_EQ(3, info.start); + EXPECT_EQ(4, info.count); + + EXPECT_TRUE(bidi.EndChar()); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::RIGHT, info.direction); + EXPECT_EQ(7, info.start); + EXPECT_EQ(1, info.count); + + EXPECT_FALSE(bidi.EndChar()); +} + +TEST(fxcrt, BidiCharLeftRightLeft) { + CFX_BidiChar bidi; + CFX_BidiChar::Segment info; + + EXPECT_TRUE(bidi.AppendChar(kLeftChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(0, info.start); + EXPECT_EQ(0, info.count); + + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + EXPECT_FALSE(bidi.AppendChar(kLeftChar)); + EXPECT_TRUE(bidi.AppendChar(kRightChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(0, info.start); + EXPECT_EQ(3, info.count); + + EXPECT_FALSE(bidi.AppendChar(kRightChar)); + EXPECT_FALSE(bidi.AppendChar(kRightChar)); + EXPECT_FALSE(bidi.AppendChar(kRightChar)); + EXPECT_TRUE(bidi.AppendChar(kLeftChar)); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::RIGHT, info.direction); + EXPECT_EQ(3, info.start); + EXPECT_EQ(4, info.count); + + EXPECT_TRUE(bidi.EndChar()); + info = bidi.GetSegmentInfo(); + EXPECT_EQ(CFX_BidiChar::LEFT, info.direction); + EXPECT_EQ(7, info.start); + EXPECT_EQ(1, info.count); + + EXPECT_FALSE(bidi.EndChar()); +} + +TEST(fxcrt, BidiStringEmpty) { + CFX_BidiString bidi(L""); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + EXPECT_TRUE(bidi.begin() == bidi.end()); +} + +TEST(fxcrt, BidiStringAllNeutral) { + { + const FX_WCHAR str[] = {kNeutralChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ++it; + EXPECT_TRUE(it == bidi.end()); + } + { + const FX_WCHAR str[] = {kNeutralChar, kNeutralChar, kNeutralChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(3, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ++it; + EXPECT_TRUE(it == bidi.end()); + } +} + +TEST(fxcrt, BidiStringAllLeft) { + { + const FX_WCHAR str[] = {kLeftChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); + } + { + const FX_WCHAR str[] = {kLeftChar, kLeftChar, kLeftChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(0, it->start); + EXPECT_EQ(3, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); + } +} + +TEST(fxcrt, BidiStringAllRight) { + { + const FX_WCHAR str[] = {kRightChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::RIGHT, bidi.OverallDirection()); + + auto it = bidi.begin(); + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); + } + { + const FX_WCHAR str[] = {kRightChar, kRightChar, kRightChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::RIGHT, bidi.OverallDirection()); + + auto it = bidi.begin(); + EXPECT_EQ(0, it->start); + EXPECT_EQ(3, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); + } +} + +TEST(fxcrt, BidiStringLeftNeutralLeftRight) { + const FX_WCHAR str[] = {kLeftChar, kNeutralChar, kLeftChar, kRightChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(1, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(2, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(3, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); +} + +TEST(fxcrt, BidiStringRightNeutralLeftRight) { + const FX_WCHAR str[] = {kRightChar, kNeutralChar, kLeftChar, kRightChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::RIGHT, bidi.OverallDirection()); + + auto it = bidi.begin(); + EXPECT_EQ(3, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(2, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(1, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + EXPECT_TRUE(it == bidi.end()); +} + +TEST(fxcrt, BidiStringReverse) { + const FX_WCHAR str[] = {kLeftChar, kNeutralChar, kRightChar, kLeftChar, 0}; + CFX_BidiString bidi(str); + EXPECT_EQ(CFX_BidiChar::LEFT, bidi.OverallDirection()); + bidi.SetOverallDirectionRight(); + + auto it = bidi.begin(); + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(3, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(2, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::RIGHT, it->direction); + ASSERT_FALSE(it == bidi.end()); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(1, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(1, it->count); + EXPECT_EQ(CFX_BidiChar::LEFT, it->direction); + + ++it; + ASSERT_FALSE(it == bidi.end()); + EXPECT_EQ(0, it->start); + EXPECT_EQ(0, it->count); + EXPECT_EQ(CFX_BidiChar::NEUTRAL, it->direction); + + ++it; + EXPECT_TRUE(it == bidi.end()); +} |