Move various gtest-style unit tests out of webkit/port and into a new...

webkit/port/platform/graphics/chromium/UniscribeHelper_unittest.cpp

-// Copyright (c) 2006-2008 The Chromium 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 "config.h"
-#include "UniscribeHelper.h"
-
-#include "PlatformString.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// This must be in the gfx namespace for the friend statements in uniscribe.h
-// to work.
-namespace WebCore {
-
-namespace {
-
-class UniscribeTest : public testing::Test {
-public:
-    UniscribeTest()
-    {
-    }
-
-    // Returns an HFONT with the given name. The caller does not have to free
-    // this, it will be automatically freed at the end of the test. Returns NULL
-    // on failure. On success, the
-    HFONT MakeFont(const wchar_t* fontName, SCRIPT_CACHE** cache)
-    {
-        LOGFONT lf;
-        memset(&lf, 0, sizeof(LOGFONT));
-        lf.lfHeight = 20;
-        wcscpy_s(lf.lfFaceName, fontName);
-
-        HFONT hfont = CreateFontIndirect(&lf);
-        if (!hfont)
-            return NULL;
-
-        *cache = new SCRIPT_CACHE;
-        **cache = NULL;
-        m_createdFonts.append(std::make_pair(hfont, *cache));
-        return hfont;
-    }
-
-protected:
-    // Default font properties structure for tests to use.
-    SCRIPT_FONTPROPERTIES m_properties;
-
-private:
-    virtual void SetUp()
-    {
-        memset(&m_properties, 0, sizeof(SCRIPT_FONTPROPERTIES));
-        m_properties.cBytes = sizeof(SCRIPT_FONTPROPERTIES);
-        m_properties.wgBlank = ' ';
-        m_properties.wgDefault = '?';  // Used when the char is not in the font.
-        m_properties.wgInvalid = '#';  // Used for invalid characters.
-    }
-
-    virtual void TearDown()
-    {
-        // Free any allocated fonts.
-        for (size_t i = 0; i < m_createdFonts.size(); i++) {
-            DeleteObject(m_createdFonts[i].first);
-            ScriptFreeCache(m_createdFonts[i].second);
-            delete m_createdFonts[i].second;
-        }
-        m_createdFonts.clear();
-    }
-
-    // Tracks allocated fonts so we can delete them at the end of the test.
-    // The script cache pointer is heap allocated and must be freed.
-    Vector< std::pair<HFONT, SCRIPT_CACHE*> > m_createdFonts;
-};
-
-}  // namespace
-
-// This test tests giving Uniscribe a very large buffer, which will cause a
-// failure.
-TEST_F(UniscribeTest, TooBig)
-{
-    // Make a large string with an e with a zillion combining accents.
-    String input(L"e");
-    for (int i = 0; i < 100000; i++)
-        input.append(static_cast<UChar>(0x301));  // Combining acute accent.
-
-    SCRIPT_CACHE* scriptCache;
-    HFONT hfont = MakeFont(L"Times New Roman", &scriptCache);
-    ASSERT_TRUE(hfont);
-
-    // Test a long string without the normal length protection we have. This
-    // will cause shaping to fail.
-    {
-        UniscribeHelper uniscribe(
-            input.characters(), static_cast<int>(input.length()),
-            false, hfont, scriptCache, &m_properties);
-        uniscribe.InitWithOptionalLengthProtection(false);
-
-        // There should be one shaping entry, with nothing in it.
-        ASSERT_EQ(1, uniscribe.m_shapes.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_glyphs.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_logs.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_visattr.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_advance.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_offsets.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_justify.size());
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_abc.abcA);
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_abc.abcB);
-        EXPECT_EQ(0, uniscribe.m_shapes[0].m_abc.abcC);
-
-        // The sizes of the other stuff should match the shaping entry.
-        EXPECT_EQ(1, uniscribe.m_runs.size());
-        EXPECT_EQ(1, uniscribe.m_screenOrder.size());
-
-        // Check that the various querying functions handle the empty case
-        // properly.
-        EXPECT_EQ(0, uniscribe.Width());
-        EXPECT_EQ(0, uniscribe.FirstGlyphForCharacter(0));
-        EXPECT_EQ(0, uniscribe.FirstGlyphForCharacter(1000));
-        EXPECT_EQ(0, uniscribe.XToCharacter(0));
-        EXPECT_EQ(0, uniscribe.XToCharacter(1000));
-    }
-
-    // Now test the very large string and make sure it is handled properly by
-    // the length protection.
-    {
-        UniscribeHelper uniscribe(
-            input.characters(), static_cast<int>(input.length()),
-            false, hfont, scriptCache, &m_properties);
-        uniscribe.InitWithOptionalLengthProtection(true);
-
-        // There should be 0 runs and shapes.
-        EXPECT_EQ(0, uniscribe.m_runs.size());
-        EXPECT_EQ(0, uniscribe.m_shapes.size());
-        EXPECT_EQ(0, uniscribe.m_screenOrder.size());
-
-        EXPECT_EQ(0, uniscribe.Width());
-        EXPECT_EQ(0, uniscribe.FirstGlyphForCharacter(0));
-        EXPECT_EQ(0, uniscribe.FirstGlyphForCharacter(1000));
-        EXPECT_EQ(0, uniscribe.XToCharacter(0));
-        EXPECT_EQ(0, uniscribe.XToCharacter(1000));
-    }
-}
-
-}  // namespace WebCore