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Unified Diff: third_party/WebKit/Source/core/layout/TextAutosizerTest.cpp

Issue 2100013002: Implement the new text-size-adjust CSS property (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Update virtual expectation, minor cleanup. Created 4 years, 6 months ago
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« third_party/WebKit/Source/core/layout/TextAutosizer.cpp ('K') | « third_party/WebKit/Source/core/layout/TextAutosizer.cpp ('k') | third_party/WebKit/Source/core/style/ComputedStyle.h » ('j') | third_party/WebKit/Source/core/style/ComputedStyle.cpp » ('J')
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Index: third_party/WebKit/Source/core/layout/TextAutosizerTest.cpp
diff --git a/third_party/WebKit/Source/core/layout/TextAutosizerTest.cpp b/third_party/WebKit/Source/core/layout/TextAutosizerTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..52ad64be56f520fa28ef655616f0db04a8050094
--- /dev/null
+++ b/third_party/WebKit/Source/core/layout/TextAutosizerTest.cpp
@@ -0,0 +1,228 @@
+// Copyright 2016 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 "core/layout/LayoutTestHelper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blink {
+
+class TextAutosizerTest : public RenderingTest {
skobes 2016/06/27 21:37:03 This test is awesome, very thorough coverage.
+private:
+ void SetUp() override
+ {
+ RenderingTest::SetUp();
+ document().settings()->setTextAutosizingEnabled(true);
+ document().settings()->setTextAutosizingWindowSizeOverride(IntSize(320, 480));
+ }
+};
+
+TEST_F(TextAutosizerTest, SimpleParagraph)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ "<div id='autosized'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ Element* autosized = document().getElementById("autosized");
+ EXPECT_FLOAT_EQ(16.f, autosized->layoutObject()->style()->specifiedFontSize());
+ // (specified font-size = 16px) * (viewport width = 800px) / (window width = 320px) = 40px.
+ EXPECT_FLOAT_EQ(40.f, autosized->layoutObject()->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, TextSizeAdjustDisablesAutosizing)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ "<div id='textSizeAdjustAuto' style='text-size-adjust: auto;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>"
+ "<div id='textSizeAdjustNone' style='text-size-adjust: none;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>"
+ "<div id='textSizeAdjust100' style='text-size-adjust: 100%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ LayoutObject* textSizeAdjustAuto = document().getElementById("textSizeAdjustAuto")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustAuto->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(40.f, textSizeAdjustAuto->style()->computedFontSize());
+ LayoutObject* textSizeAdjustNone = document().getElementById("textSizeAdjustNone")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustNone->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustNone->style()->computedFontSize());
+ LayoutObject* textSizeAdjust100 = document().getElementById("textSizeAdjust100")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjust100->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjust100->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, ParagraphWithChangingTextSizeAdjustment)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ " .none { text-size-adjust: none; }"
+ " .small { text-size-adjust: 50%; }"
+ " .large { text-size-adjust: 150%; }"
+ "</style>"
+ "<div id='autosized'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ Element* autosizedDiv = document().getElementById("autosized");
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(40.f, autosizedDiv->layoutObject()->style()->computedFontSize());
+
+ autosizedDiv->setAttribute(HTMLNames::classAttr, "none");
+ document().view()->updateAllLifecyclePhases();
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->computedFontSize());
+
+ autosizedDiv->setAttribute(HTMLNames::classAttr, "small");
+ document().view()->updateAllLifecyclePhases();
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(8.f, autosizedDiv->layoutObject()->style()->computedFontSize());
+
+ autosizedDiv->setAttribute(HTMLNames::classAttr, "large");
+ document().view()->updateAllLifecyclePhases();
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(24.f, autosizedDiv->layoutObject()->style()->computedFontSize());
+
+ autosizedDiv->removeAttribute(HTMLNames::classAttr);
+ document().view()->updateAllLifecyclePhases();
+ EXPECT_FLOAT_EQ(16.f, autosizedDiv->layoutObject()->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(40.f, autosizedDiv->layoutObject()->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, ZeroTextSizeAdjustment)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ "<div id='textSizeAdjustZero' style='text-size-adjust: 0%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ LayoutObject* textSizeAdjustZero = document().getElementById("textSizeAdjustZero")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustZero->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(0.f, textSizeAdjustZero->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, NegativeTextSizeAdjustment)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ // Negative values should be treated as auto.
+ "<div id='textSizeAdjustNegative' style='text-size-adjust: -10%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ LayoutObject* textSizeAdjustNegative = document().getElementById("textSizeAdjustNegative")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustNegative->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(40.f, textSizeAdjustNegative->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, NestedTextSizeAdjust)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ "<div id='textSizeAdjustA' style='text-size-adjust: 47%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ " <div id='textSizeAdjustB' style='text-size-adjust: 53%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute"
+ " irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla"
+ " pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui"
+ " officia deserunt mollit anim id est laborum."
+ " </div>"
+ "</div>");
+ LayoutObject* textSizeAdjustA = document().getElementById("textSizeAdjustA")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustA->style()->specifiedFontSize());
+ // 16px * 47% = 7.52
+ EXPECT_FLOAT_EQ(7.52f, textSizeAdjustA->style()->computedFontSize());
+ LayoutObject* textSizeAdjustB = document().getElementById("textSizeAdjustB")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjustB->style()->specifiedFontSize());
+ // 16px * 53% = 8.48
+ EXPECT_FLOAT_EQ(8.48f, textSizeAdjustB->style()->computedFontSize());
+}
+
+TEST_F(TextAutosizerTest, PrefixedTextSizeAdjustIsAlias)
+{
+ setBodyInnerHTML(
+ "<meta name='viewport' content='width=800'>"
+ "<style>"
+ " html { font-size: 16px; }"
+ " body { width: 800px; margin: 0; overflow-y: hidden; }"
+ "</style>"
+ "<div id='textSizeAdjust' style='-webkit-text-size-adjust: 50%;'>"
+ " Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"
+ " incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud"
+ " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure"
+ " dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+ " Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt"
+ " mollit anim id est laborum."
+ "</div>");
+ LayoutObject* textSizeAdjust = document().getElementById("textSizeAdjust")->layoutObject();
+ EXPECT_FLOAT_EQ(16.f, textSizeAdjust->style()->specifiedFontSize());
+ EXPECT_FLOAT_EQ(8.f, textSizeAdjust->style()->computedFontSize());
+ EXPECT_FLOAT_EQ(.5f, textSizeAdjust->style()->getTextSizeAdjust().multiplier());
+}
+
+} // namespace blink
« third_party/WebKit/Source/core/layout/TextAutosizer.cpp ('K') | « third_party/WebKit/Source/core/layout/TextAutosizer.cpp ('k') | third_party/WebKit/Source/core/style/ComputedStyle.h » ('j') | third_party/WebKit/Source/core/style/ComputedStyle.cpp » ('J')

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