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chrome/browser/tab_contents/navigation_controller_unittest.cc

Index: chrome/browser/tab_contents/navigation_controller_unittest.cc
diff --git a/chrome/browser/tab_contents/navigation_controller_unittest.cc b/chrome/browser/tab_contents/navigation_controller_unittest.cc
index 74dd068c1dd43b01cfcce3538f835e2c79115855..7d4341686b80b5052a404f2e39b800ae45c787b3 100644
--- a/chrome/browser/tab_contents/navigation_controller_unittest.cc
+++ b/chrome/browser/tab_contents/navigation_controller_unittest.cc
@@ -1865,6 +1865,69 @@ TEST_F(NavigationControllerTest, HistoryNavigate) {
   EXPECT_TRUE(message == NULL);
 }
 
+// Test call to PruneAllButActive for the only entry.
+TEST_F(NavigationControllerTest, PruneAllButActiveForSingle) {
+  const GURL url1("http://foo1");
+  NavigateAndCommit(url1);
+  controller().PruneAllButActive();
+
+  EXPECT_EQ(-1, controller().pending_entry_index());
+  EXPECT_EQ(controller().GetEntryAtIndex(0)->url(), url1);
+}
+
+// Test call to PruneAllButActive for last entry.
+TEST_F(NavigationControllerTest, PruneAllButActiveForLast) {
+  const GURL url1("http://foo1");
+  const GURL url2("http://foo2");
+  const GURL url3("http://foo3");
+
+  NavigateAndCommit(url1);
+  NavigateAndCommit(url2);
+  NavigateAndCommit(url3);
+  controller().GoBack();
+  controller().GoBack();
+  contents()->CommitPendingNavigation();
+
+  controller().PruneAllButActive();
+
+  EXPECT_EQ(-1, controller().pending_entry_index());
+  EXPECT_EQ(controller().GetEntryAtIndex(0)->url(), url1);
+}
+
+// Test call to PruneAllButActive for intermediate entry.
+TEST_F(NavigationControllerTest, PruneAllButActiveForIntermediate) {
+  const GURL url1("http://foo1");
+  const GURL url2("http://foo2");
+  const GURL url3("http://foo3");
+
+  NavigateAndCommit(url1);
+  NavigateAndCommit(url2);
+  NavigateAndCommit(url3);
+  controller().GoBack();
+  contents()->CommitPendingNavigation();
+
+  controller().PruneAllButActive();
+
+  EXPECT_EQ(-1, controller().pending_entry_index());
+  EXPECT_EQ(controller().GetEntryAtIndex(0)->url(), url2);
+}
+
+// Test call to PruneAllButActive for intermediate entry.
+TEST_F(NavigationControllerTest, PruneAllButActiveForPending) {
+  const GURL url1("http://foo1");
+  const GURL url2("http://foo2");
+  const GURL url3("http://foo3");
+
+  NavigateAndCommit(url1);
+  NavigateAndCommit(url2);
+  NavigateAndCommit(url3);
+  controller().GoBack();
+
+  controller().PruneAllButActive();
+
+  EXPECT_EQ(0, controller().pending_entry_index());
+}
+
 /* TODO(brettw) These test pass on my local machine but fail on the XP buildbot
    (but not Vista) cleaning up the directory after they run.
    This should be fixed.