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Unified Diff: ios/web/web_state/web_state_unittest.mm

Issue 2945213002: [ios] Snapshot for WebState (Closed)
Patch Set: Address comments Created 3 years, 6 months ago
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Index: ios/web/web_state/web_state_unittest.mm
diff --git a/ios/web/web_state/web_state_unittest.mm b/ios/web/web_state/web_state_unittest.mm
index 35c165c2e97920b0a1148b38be887504cdee26f9..76b37f8e4df461b6079c7cc787498cc502df1a81 100644
--- a/ios/web/web_state/web_state_unittest.mm
+++ b/ios/web/web_state/web_state_unittest.mm
@@ -4,11 +4,16 @@
#import "ios/web/public/web_state/web_state.h"
+#import <UIKit/UIKit.h>
+
#include "base/mac/bind_objc_block.h"
#include "base/strings/utf_string_conversions.h"
+#include "base/test/ios/wait_util.h"
#include "base/values.h"
#import "ios/web/public/navigation_manager.h"
#import "ios/web/public/test/web_test_with_web_state.h"
+#include "ui/gfx/image/image.h"
+#include "ui/gfx/image/image_unittest_util.h"
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
@@ -112,4 +117,37 @@ TEST_F(WebStateTest, ReloadWithOriginalTypeWithEmptyNavigationManager) {
ASSERT_FALSE(navigation_manager->GetLastCommittedItem());
}
+// Tests that the snapshot method returns an image of a rendered html page.
+TEST_F(WebStateTest, Snapshot) {
+ LoadHtml(
+ "<html><div style='background-color:#FF0000; width:50%; "
+ "height:100%;'></div></html>");
+ __block bool snapshot_complete = false;
+ [[[UIApplication sharedApplication] keyWindow]
+ addSubview:web_state()->GetView()];
+ // The subview is added but not immediately painted, so a small delay is
+ // necessary.
+ base::test::ios::SpinRunLoopWithMinDelay(base::TimeDelta::FromSecondsD(0.1));
+ CGSize target_size = CGSizeMake(100.0f, 100.0f);
+ web_state()->TakeSnapshot(
+ base::BindBlockArc(^(const gfx::Image& snapshot) {
+ ASSERT_FALSE(snapshot.IsEmpty());
+ EXPECT_EQ(snapshot.Width(), target_size.width);
+ EXPECT_EQ(snapshot.Height(), target_size.height);
+ // Test a pixel on the left (red) side.
+ gfx::test::CheckColors(gfx::test::GetPlatformImageColor(
+ gfx::test::ToPlatformType(snapshot), 45, 50),
+ SK_ColorRED);
+ // Test a pixel on the right (white) side.
+ gfx::test::CheckColors(gfx::test::GetPlatformImageColor(
+ gfx::test::ToPlatformType(snapshot), 55, 50),
+ SK_ColorWHITE);
+ snapshot_complete = true;
+ }),
+ target_size);
+ WaitForCondition(^{
+ return snapshot_complete;
+ });
+}
+
} // namespace web
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