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// Copyright 2019 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 "third_party/blink/renderer/core/accessibility/apply_dark_mode.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/core/html/html_head_element.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/core/testing/core_unit_test_helper.h"
#include "third_party/blink/renderer/platform/testing/runtime_enabled_features_test_helpers.h"
namespace blink {
namespace {
using ApplyDarkModeCheckTest = RenderingTest;
TEST_F(ApplyDarkModeCheckTest, LightSolidBackgroundAlwaysFiltered) {
GetDocument().body()->SetInlineStyleProperty(CSSPropertyID::kBackgroundColor,
CSSValueID::kWhite);
UpdateAllLifecyclePhasesForTest();
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(
DarkModePagePolicy::kFilterByBackground, GetLayoutView()));
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(DarkModePagePolicy::kFilterAll,
GetLayoutView()));
}
TEST_F(ApplyDarkModeCheckTest, DarkSolidBackgroundFilteredIfPolicyIsFilterAll) {
GetDocument().body()->SetInlineStyleProperty(CSSPropertyID::kBackgroundColor,
CSSValueID::kBlack);
UpdateAllLifecyclePhasesForTest();
EXPECT_FALSE(ShouldApplyDarkModeFilterToPage(
DarkModePagePolicy::kFilterByBackground, GetLayoutView()));
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(DarkModePagePolicy::kFilterAll,
GetLayoutView()));
}
TEST_F(ApplyDarkModeCheckTest, DarkTransparentBackgroundAlwaysFiltered) {
GetDocument().body()->SetInlineStyleProperty(CSSPropertyID::kBackgroundColor,
CSSValueID::kTransparent);
UpdateAllLifecyclePhasesForTest();
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(
DarkModePagePolicy::kFilterByBackground, GetLayoutView()));
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(DarkModePagePolicy::kFilterAll,
GetLayoutView()));
}
TEST_F(ApplyDarkModeCheckTest, BackgroundColorNotDefinedAlwaysFiltered) {
GetDocument().body()->RemoveInlineStyleProperty(
CSSPropertyID::kBackgroundColor);
UpdateAllLifecyclePhasesForTest();
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(
DarkModePagePolicy::kFilterByBackground, GetLayoutView()));
EXPECT_TRUE(ShouldApplyDarkModeFilterToPage(DarkModePagePolicy::kFilterAll,
GetLayoutView()));
}
TEST_F(ApplyDarkModeCheckTest, MetaColorSchemeDark) {
ScopedCSSColorSchemeForTest css_feature_scope(true);
ScopedMetaColorSchemeForTest meta_feature_scope(true);
GetDocument().GetSettings()->SetForceDarkModeEnabled(true);
GetDocument().GetSettings()->SetPreferredColorScheme(
PreferredColorScheme::kDark);
GetDocument().head()->SetInnerHTMLFromString(R"HTML(
<meta name="color-scheme" content="dark">
)HTML");
UpdateAllLifecyclePhasesForTest();
// Opting out of forced darkening when dark is among the supported color
// schemes for the page.
EXPECT_FALSE(ShouldApplyDarkModeFilterToPage(
DarkModePagePolicy::kFilterByBackground, GetLayoutView()));
EXPECT_FALSE(ShouldApplyDarkModeFilterToPage(DarkModePagePolicy::kFilterAll,
GetLayoutView()));
}
} // namespace
} // namespace blink
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