[Resumption 9/11] Handle filename determination for resumed downloads.

chrome/browser/download/download_target_determiner_unittest.cc

Index: chrome/browser/download/download_target_determiner_unittest.cc
diff --git a/chrome/browser/download/download_target_determiner_unittest.cc b/chrome/browser/download/download_target_determiner_unittest.cc
index debdbc687dc200cd92c0578c147d2b9afe98be8a..feaff0ddfa4a3c8715cb0d25788972b7d8cf126b 100644
--- a/chrome/browser/download/download_target_determiner_unittest.cc
+++ b/chrome/browser/download/download_target_determiner_unittest.cc
@@ -24,6 +24,7 @@
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_pref_service_syncable.h"
 #include "chrome/test/base/testing_profile.h"
+#include "content/public/browser/download_interrupt_reasons.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/test/mock_download_item.h"
@@ -205,6 +206,7 @@ class DownloadTargetDeterminerTest : public ChromeRenderViewHostTestHarness {
 
   // Run |test_case| using |item|.
   void RunTestCase(const DownloadTestCase& test_case,
+                   const base::FilePath& initial_virtual_path,
                    content::MockDownloadItem* item);
 
   // Run through |test_case_count| tests in |test_cases|. A new MockDownloadItem
@@ -302,6 +304,8 @@ DownloadTargetDeterminerTest::CreateActiveDownloadItem(
       .WillByDefault(ReturnRefOfCopy(std::string()));
   ON_CALL(*item, GetId())
       .WillByDefault(Return(id));
+  ON_CALL(*item, GetLastReason())
+      .WillByDefault(Return(content::DOWNLOAD_INTERRUPT_REASON_NONE));
   ON_CALL(*item, GetMimeType())
       .WillByDefault(Return(test_case.mime_type));
   ON_CALL(*item, GetReferrerUrl())
@@ -356,12 +360,13 @@ base::FilePath DownloadTargetDeterminerTest::GetPathInDownloadDir(
 
 void DownloadTargetDeterminerTest::RunTestCase(
     const DownloadTestCase& test_case,
+    const base::FilePath& initial_virtual_path,
     content::MockDownloadItem* item) {
   // Kick off the test.
   base::WeakPtrFactory<DownloadTargetDeterminerTest> factory(this);
   base::RunLoop run_loop;
   DownloadTargetDeterminer::Start(
-      item, download_prefs_.get(), delegate(),
+      item, initial_virtual_path, download_prefs_.get(), delegate(),
       base::Bind(&DownloadTargetDeterminerTest::DownloadTargetVerifier,
                  factory.GetWeakPtr(), run_loop.QuitClosure(), test_case));
   run_loop.Run();
@@ -375,7 +380,7 @@ void DownloadTargetDeterminerTest::RunTestCasesWithActiveItem(
     scoped_ptr<content::MockDownloadItem> item(
         CreateActiveDownloadItem(i, test_cases[i]));
     SCOPED_TRACE(testing::Message() << "Running test case " << i);
-    RunTestCase(test_cases[i], item.get());
+    RunTestCase(test_cases[i], base::FilePath(), item.get());
   }
 }
 
@@ -960,7 +965,7 @@ TEST_F(DownloadTargetDeterminerTest, TargetDeterminer_InactiveDownload) {
     // the user because the download is inactive.
     EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, _, _))
         .Times(0);
-    RunTestCase(kInactiveTestCases[i], item.get());
+    RunTestCase(test_case, base::FilePath(), item.get());
   }
 }
 
@@ -1409,7 +1414,7 @@ TEST_F(DownloadTargetDeterminerTest,
       _)).WillOnce(WithArg<4>(
           ScheduleCallback2(full_overridden_path, true)));
 
-  RunTestCase(test_case, item.get());
+  RunTestCase(test_case, base::FilePath(), item.get());
 
   // Second case: An extension sets the conflict_action to PROMPT.
   EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _))
@@ -1420,7 +1425,7 @@ TEST_F(DownloadTargetDeterminerTest,
       _, full_overridden_path, true, DownloadPathReservationTracker::PROMPT, _))
       .WillOnce(WithArg<4>(
           ScheduleCallback2(full_overridden_path, true)));
-  RunTestCase(test_case, item.get());
+  RunTestCase(test_case, base::FilePath(), item.get());
 }
 
 // Test that relative paths returned by extensions are always relative to the
@@ -1458,6 +1463,257 @@ TEST_F(DownloadTargetDeterminerTest,
               PromptUserForDownloadPath(_, full_overridden_path, _))
       .WillOnce(WithArg<2>(
           ScheduleCallback(full_overridden_path)));
-  RunTestCase(test_case, item.get());
+  RunTestCase(test_case, base::FilePath(), item.get());
 }
+
+TEST_F(DownloadTargetDeterminerTest,
+       TargetDeterminer_InitialVirtualPathUnsafe) {
+  const base::FilePath::CharType* kInitialPath =
+      FILE_PATH_LITERAL("some_path/bar.html");
+
+  const DownloadTestCase kInitialPathTestCase = {
+    // 0: Save As Save. The path generated based on the DownloadItem is safe,
+    // but the initial path is unsafe. However, the download is not considered
+    // dangerous since the user has been prompted.
+    SAVE_AS,
+    content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+    "http://example.com/foo.txt", "text/plain",
+    FILE_PATH_LITERAL(""),
+
+    FILE_PATH_LITERAL(""),
+    kInitialPath,
+    DownloadItem::TARGET_DISPOSITION_PROMPT,
+
+    EXPECT_CRDOWNLOAD
+  };
+
+  const DownloadTestCase& test_case = kInitialPathTestCase;
+  scoped_ptr<content::MockDownloadItem> item(
+      CreateActiveDownloadItem(1, test_case));
+  EXPECT_CALL(*item, GetLastReason())
+      .WillRepeatedly(Return(
+          content::DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED));
+  EXPECT_CALL(*item, GetTargetDisposition())
+      .WillRepeatedly(Return(DownloadItem::TARGET_DISPOSITION_PROMPT));
+  RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
+}
+
+// Prompting behavior for resumed downloads is based on the last interrupt
+// reason. If the reason indicates that the target path may not be suitable for
+// the download (ACCESS_DENIED, NO_SPACE, etc..), then the user should be
+// prompted, and not otherwise. These test cases shouldn't result in prompting
+// since the error is set to NETWORK_FAILED.
+TEST_F(DownloadTargetDeterminerTest, TargetDeterminer_ResumedNoPrompt) {
+  // All test cases run with GetPathInDownloadDir(kInitialPath) as the inital
+  // path.
+  const base::FilePath::CharType* kInitialPath =
+      FILE_PATH_LITERAL("some_path/bar.txt");
+
+  const DownloadTestCase kResumedTestCases[] = {
+    {
+      // 0: Automatic Safe: Initial path is ignored since the user has not been
+      // prompted before.
+      AUTOMATIC,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.txt", "text/plain",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("foo.txt"),
+      DownloadItem::TARGET_DISPOSITION_OVERWRITE,
+
+      EXPECT_CRDOWNLOAD
+    },
+
+    {
+      // 1: Save_As Safe: Initial path used.
+      SAVE_AS,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.txt", "text/plain",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      kInitialPath,
+      DownloadItem::TARGET_DISPOSITION_PROMPT,
+
+      EXPECT_CRDOWNLOAD
+    },
+
+    {
+      // 2: Automatic Dangerous: Initial path is ignored since the user hasn't
+      // been prompted before.
+      AUTOMATIC,
+      content::DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE,
+      "http://example.com/foo.html", "",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("foo.html"),
+      DownloadItem::TARGET_DISPOSITION_OVERWRITE,
+
+      EXPECT_UNCONFIRMED
+    },
+
+    {
+      // 3: Forced Safe: Initial path is ignored due to the forced path.
+      FORCED,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.txt", "",
+      FILE_PATH_LITERAL("forced-foo.txt"),
+
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("forced-foo.txt"),
+      DownloadItem::TARGET_DISPOSITION_OVERWRITE,
+
+      EXPECT_LOCAL_PATH
+    },
+  };
+
+  // The test assumes that .html files have a danger level of
+  // AllowOnUserGesture.
+  ASSERT_EQ(download_util::AllowOnUserGesture,
+            download_util::GetFileDangerLevel(
+                base::FilePath(FILE_PATH_LITERAL("foo.html"))));
+  for (size_t i = 0; i < arraysize(kResumedTestCases); ++i) {
+    SCOPED_TRACE(testing::Message() << "Running test case " << i);
+    const DownloadTestCase& test_case = kResumedTestCases[i];
+    scoped_ptr<content::MockDownloadItem> item(
+        CreateActiveDownloadItem(i, test_case));
+    base::FilePath expected_path =
+        GetPathInDownloadDir(test_case.expected_local_path);
+    ON_CALL(*item.get(), GetLastReason())
+        .WillByDefault(Return(
+            content::DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED));
+    // Extensions should be notified if a new path is being generated and there
+    // is no forced path. In the test cases above, this is true for tests with
+    // type == AUTOMATIC.
+    EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _))
+        .Times(test_case.test_type == AUTOMATIC ? 1 : 0);
+    EXPECT_CALL(*delegate(), ReserveVirtualPath(_, expected_path, false, _, _));
+    EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, expected_path, _))
+        .Times(0);
+    EXPECT_CALL(*delegate(), DetermineLocalPath(_, expected_path, _));
+    EXPECT_CALL(*delegate(), CheckDownloadUrl(_, expected_path, _));
+    RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
+  }
+
+}
+
+// Test that a forced download doesn't prompt, even if the interrupt reason
+// suggests that the target path may not be suitable for downloads.
+TEST_F(DownloadTargetDeterminerTest, TargetDeterminer_ResumedForcedDownload) {
+  const base::FilePath::CharType* kInitialPath =
+      FILE_PATH_LITERAL("some_path/bar.txt");
+  const DownloadTestCase kResumedForcedDownload = {
+    // 3: Forced Safe
+    FORCED,
+    content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+    "http://example.com/foo.txt", "",
+    FILE_PATH_LITERAL("forced-foo.txt"),
+
+    FILE_PATH_LITERAL(""),
+    FILE_PATH_LITERAL("forced-foo.txt"),
+    DownloadItem::TARGET_DISPOSITION_OVERWRITE,
+
+    EXPECT_LOCAL_PATH
+  };
+
+  const DownloadTestCase& test_case = kResumedForcedDownload;
+  base::FilePath expected_path =
+      GetPathInDownloadDir(test_case.expected_local_path);
+  scoped_ptr<content::MockDownloadItem> item(
+      CreateActiveDownloadItem(0, test_case));
+  ON_CALL(*item.get(), GetLastReason())
+      .WillByDefault(Return(
+          content::DOWNLOAD_INTERRUPT_REASON_FILE_NO_SPACE));
+  EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _))
+      .Times(test_case.test_type == AUTOMATIC ? 1 : 0);
+  EXPECT_CALL(*delegate(), ReserveVirtualPath(_, expected_path, false, _, _));
+  EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, _, _))
+      .Times(0);
+  EXPECT_CALL(*delegate(), DetermineLocalPath(_, expected_path, _));
+  EXPECT_CALL(*delegate(), CheckDownloadUrl(_, expected_path, _));
+  RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
+}
+
+// Prompting behavior for resumed downloads is based on the last interrupt
+// reason. If the reason indicates that the target path may not be suitable for
+// the download (ACCESS_DENIED, NO_SPACE, etc..), then the user should be
+// prompted, and not otherwise. These test cases result in prompting since the
+// error is set to NO_SPACE.
+TEST_F(DownloadTargetDeterminerTest, TargetDeterminer_ResumedWithPrompt) {
+  // All test cases run with GetPathInDownloadDir(kInitialPath) as the inital
+  // path.
+  const base::FilePath::CharType* kInitialPath =
+      FILE_PATH_LITERAL("some_path/bar.txt");
+
+  const DownloadTestCase kResumedTestCases[] = {
+    {
+      // 0: Automatic Safe
+      AUTOMATIC,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.txt", "text/plain",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("foo.txt"),
+      DownloadItem::TARGET_DISPOSITION_PROMPT,
+
+      EXPECT_CRDOWNLOAD
+    },
+
+    {
+      // 1: Save_As Safe
+      SAVE_AS,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.txt", "text/plain",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      kInitialPath,
+      DownloadItem::TARGET_DISPOSITION_PROMPT,
+
+      EXPECT_CRDOWNLOAD
+    },
+
+    {
+      // 2: Automatic Dangerous
+      AUTOMATIC,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      "http://example.com/foo.html", "",
+      FILE_PATH_LITERAL(""),
+
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("foo.html"),
+      DownloadItem::TARGET_DISPOSITION_PROMPT,
+
+      EXPECT_CRDOWNLOAD
+    },
+  };
+
+  // The test assumes that .html files have a danger level of
+  // AllowOnUserGesture.
+  ASSERT_EQ(download_util::AllowOnUserGesture,
+            download_util::GetFileDangerLevel(
+                base::FilePath(FILE_PATH_LITERAL("foo.html"))));
+  for (size_t i = 0; i < arraysize(kResumedTestCases); ++i) {
+    SCOPED_TRACE(testing::Message() << "Running test case " << i);
+    const DownloadTestCase& test_case = kResumedTestCases[i];
+    base::FilePath expected_path =
+        GetPathInDownloadDir(test_case.expected_local_path);
+    scoped_ptr<content::MockDownloadItem> item(
+        CreateActiveDownloadItem(i, test_case));
+    ON_CALL(*item.get(), GetLastReason())
+        .WillByDefault(Return(
+            content::DOWNLOAD_INTERRUPT_REASON_FILE_NO_SPACE));
+    EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _))
+        .Times(test_case.test_type == AUTOMATIC ? 1 : 0);
+    EXPECT_CALL(*delegate(), ReserveVirtualPath(_, expected_path, false, _, _));
+    EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, expected_path, _));
+    EXPECT_CALL(*delegate(), DetermineLocalPath(_, expected_path, _));
+    EXPECT_CALL(*delegate(), CheckDownloadUrl(_, expected_path, _));
+    RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
+  }
+}
+
 }  // namespace