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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "net/dns/mock_host_resolver.h"
namespace content {
class PerformanceMemoryBrowserTest : public ContentBrowserTest {
public:
PerformanceMemoryBrowserTest() {}
protected:
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
}
};
// Verify that performance.memory is not bucketized when sites are isolated for
// testing, and that it is bucketized when they are not.
IN_PROC_BROWSER_TEST_F(PerformanceMemoryBrowserTest, PerformanceMemory) {
GURL main_url(embedded_test_server()->GetURL("a.com", "/title1.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
WebContents* contents = shell()->web_contents();
FrameTreeNode* root =
static_cast<WebContentsImpl*>(contents)->GetPrimaryFrameTree().root();
int usedJSHeapSize =
EvalJs(root, "performance.memory.usedJSHeapSize;").ExtractInt();
EXPECT_GE(usedJSHeapSize, 0);
// There is no explicit way to check if the memory values are bucketized or
// not. As in third_party/blink/renderer/core/timing/memory_info_test.cc,
// check that the value mod 100000 is non-zero to verify that it is
// not bucketized. This should be the case when the renderer process is locked
// to a site (i.e. scheme plus eTLD+1).
if (AreAllSitesIsolatedForTesting())
EXPECT_NE(0, usedJSHeapSize % 100000);
else
EXPECT_EQ(0, usedJSHeapSize % 100000);
}
} // namespace content
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