Add Generic Implementation of ClipboardRecentContent

components/open_from_clipboard/clipboard_recent_content_generic_unittest.cc

Index: components/open_from_clipboard/clipboard_recent_content_generic_unittest.cc
diff --git a/components/open_from_clipboard/clipboard_recent_content_generic_unittest.cc b/components/open_from_clipboard/clipboard_recent_content_generic_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1101c5e92e888b71677bb1db27dda44e13afd278
--- /dev/null
+++ b/components/open_from_clipboard/clipboard_recent_content_generic_unittest.cc
@@ -0,0 +1,126 @@
+// Copyright 2017 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 "components/open_from_clipboard/clipboard_recent_content_generic.h"
+
+#include <memory>
+#include <utility>
+
+#include "base/strings/string16.h"
+#include "base/time/time.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/test/test_clipboard.h"
+#include "url/gurl.h"
+
+class ClipboardRecentContentGenericTest : public testing::Test {
+ protected:
+  void SetUp() override {
+    test_clipboard_ = new ui::TestClipboard;
+    std::unique_ptr<ui::Clipboard> clipboard(test_clipboard_);
+    ui::Clipboard::SetClipboardForCurrentThread(std::move(clipboard));
+  }
+
+  void TearDown() override {
+    ui::Clipboard::DestroyClipboardForCurrentThread();
+  }
+
+  ui::TestClipboard* test_clipboard_;
+};
+
+TEST_F(ClipboardRecentContentGenericTest, RecognizesURLs) {
+  struct {
+    std::string clipboard;
+    const bool expected_get_recent_url_value;
+  } test_data[] = {
+      {"www", false},
+      {"query string", false},
+      {"www.example.com", false},
+      {"http://www.example.com/", true},
+      // The missing trailing slash shouldn't matter.
+      {"http://www.example.com", true},
+      {"https://another-example.com/", true},
+      {"http://example.com/with-path/", true},
+      {"about:version", true},
+      {"data:,Hello%2C%20World!", true},
+      // Certain schemes are not eligible to be suggested.
+      {"ftp://example.com/", false},
+      // Leading and trailing spaces are okay, other spaces not.
+      {"  http://leading.com", true},
+      {" http://both.com/trailing  ", true},
+      {"http://malformed url", false},
+      {"http://another.com/malformed url", false},
+      // Internationalized domain names should work.
+      {"http://xn--c1yn36f", true},
+      {" http://xn--c1yn36f/path   ", true},
+      {"http://xn--c1yn36f extra ", false},
+      {"http://點看", true},
+      {"http://點看/path", true},
+      {"  http://點看/path ", true},
+      {" http://點看/path extra word", false},
+  };
+
+  ClipboardRecentContentGeneric recent_content;
+  base::Time now = base::Time::Now();
+  for (size_t i = 0; i < arraysize(test_data); ++i) {
+    test_clipboard_->WriteText(test_data[i].clipboard.data(),
+                               test_data[i].clipboard.length());
+    test_clipboard_->SetClipboardLastModifiedTime(
+        now - base::TimeDelta::FromSeconds(10));
+    GURL url;
+    EXPECT_EQ(test_data[i].expected_get_recent_url_value,
+              recent_content.GetRecentURLFromClipboard(&url))
+        << "for input " << test_data[i].clipboard;
+  }
+}
+
+TEST_F(ClipboardRecentContentGenericTest, OlderURLsNotSuggested) {
+  ClipboardRecentContentGeneric recent_content;
+  base::Time now = base::Time::Now();
+  std::string text = "http://example.com/";
+  test_clipboard_->WriteText(text.data(), text.length());
+  test_clipboard_->SetClipboardLastModifiedTime(
+      now - base::TimeDelta::FromSeconds(10));
+  GURL url;
+  EXPECT_TRUE(recent_content.GetRecentURLFromClipboard(&url));
+  // If the last modified time is days ago, the URL shouldn't be suggested.
+  test_clipboard_->SetClipboardLastModifiedTime(now -
+                                                base::TimeDelta::FromDays(2));
+  EXPECT_FALSE(recent_content.GetRecentURLFromClipboard(&url));
+}
+
+TEST_F(ClipboardRecentContentGenericTest, GetClipboardContentAge) {
+  ClipboardRecentContentGeneric recent_content;
+  base::Time now = base::Time::Now();
+  std::string text = " whether URL or not should not matter here.";
+  test_clipboard_->WriteText(text.data(), text.length());
+  test_clipboard_->SetClipboardLastModifiedTime(
+      now - base::TimeDelta::FromSeconds(32));
+  base::TimeDelta age = recent_content.GetClipboardContentAge();
+  // It's possible the GetClipboardContentAge() took some time, so allow a
+  // little slop (5 seconds) in this comparison; don't check for equality.
+  EXPECT_LT(age - base::TimeDelta::FromSeconds(32),
+            base::TimeDelta::FromSeconds(5));
+}
+
+TEST_F(ClipboardRecentContentGenericTest, SuppressClipboardContent) {
+  // Make sure the URL is suggested.
+  ClipboardRecentContentGeneric recent_content;
+  base::Time now = base::Time::Now();
+  std::string text = "http://example.com/";
+  test_clipboard_->WriteText(text.data(), text.length());
+  test_clipboard_->SetClipboardLastModifiedTime(
+      now - base::TimeDelta::FromSeconds(10));
+  GURL url;
+  EXPECT_TRUE(recent_content.GetRecentURLFromClipboard(&url));
+
+  // After suppressing it, it shouldn't be suggested.
+  recent_content.SuppressClipboardContent();
+  EXPECT_FALSE(recent_content.GetRecentURLFromClipboard(&url));
+
+  // If the clipboard changes, even if to the same thing again, the content
+  // should be suggested again.
+  test_clipboard_->WriteText(text.data(), text.length());
+  test_clipboard_->SetClipboardLastModifiedTime(now);
+  EXPECT_TRUE(recent_content.GetRecentURLFromClipboard(&url));
+}