Use PASS() everywhere in ppapi/tests.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/4182010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@70779 0039d316-1c4b-4281-b951-d872f2087c98

12 files changed, 67 insertions, 67 deletions

diff --git a/ppapi/tests/test_buffer.cc b/ppapi/tests/test_buffer.cc
index 9f1dc4b..3cb8030 100644
--- a/ppapi/tests/test_buffer.cc
+++ b/ppapi/tests/test_buffer.cc
@@ -30,7 +30,7 @@ std::string TestBuffer::TestInvalidSize() {
   if (!zero_size.is_null())
     return "Zero size accepted";
 
-  return "";
+  PASS();
 }
 
 std::string TestBuffer::TestInitToZero() {
@@ -48,7 +48,7 @@ std::string TestBuffer::TestInitToZero() {
       return "Buffer isn't entirely zero";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestBuffer::TestIsBuffer() {
@@ -72,6 +72,6 @@ std::string TestBuffer::TestIsBuffer() {
   if (!buffer_interface_->IsBuffer(buffer.pp_resource()))
     return "Buffer should be identified as a buffer";
 
-  return "";
+  PASS();
 }
 
diff --git a/ppapi/tests/test_char_set.cc b/ppapi/tests/test_char_set.cc
index e97804a..c760a01 100644
--- a/ppapi/tests/test_char_set.cc
+++ b/ppapi/tests/test_char_set.cc
@@ -96,7 +96,7 @@ std::string TestCharSet::TestUTF16ToCharSet() {
   ASSERT_TRUE(!utf8result);
   ASSERT_TRUE(utf8result_len == 0);
 
-  return std::string();
+  PASS();
 }
 
 std::string TestCharSet::TestCharSetToUTF16() {
@@ -148,7 +148,7 @@ std::string TestCharSet::TestCharSetToUTF16() {
   ASSERT_TRUE(!utf16result);
   ASSERT_TRUE(utf16result_len == 0);
 
-  return std::string();
+  PASS();
 }
 
 std::vector<uint16_t> TestCharSet::UTF8ToUTF16(const std::string& utf8) {
diff --git a/ppapi/tests/test_file_io.cc b/ppapi/tests/test_file_io.cc
index 5ba571a..591d656 100644
--- a/ppapi/tests/test_file_io.cc
+++ b/ppapi/tests/test_file_io.cc
@@ -113,7 +113,7 @@ std::string TestFileIO::TestOpen() {
   if (rv != PP_ERROR_FILENOTFOUND)
     return ReportError("FileIO::Open", rv);
 
-  return "";
+  PASS();
 }
 
 std::string TestFileIO::TestReadWriteSetLength() {
@@ -227,7 +227,7 @@ std::string TestFileIO::TestReadWriteSetLength() {
     return ReportMismatch("FileIO::Read", read_buffer,
                           std::string("testtest\0\0\0\0", 12));
 
-  return "";
+  PASS();
 }
 
 std::string TestFileIO::TestTouchQuery() {
@@ -281,5 +281,5 @@ std::string TestFileIO::TestTouchQuery() {
       (info.last_modified_time != last_modified_time))
     return "FileSystem::Query() has returned bad data.";
 
-  return "";
+  PASS();
 }
diff --git a/ppapi/tests/test_file_ref.cc b/ppapi/tests/test_file_ref.cc
index a81b8ed2..06cc9ec 100644
--- a/ppapi/tests/test_file_ref.cc
+++ b/ppapi/tests/test_file_ref.cc
@@ -92,7 +92,7 @@ std::string TestFileRef::TestGetFileSystemType() {
   if (file_ref_ext.GetFileSystemType() != PP_FILESYSTEMTYPE_EXTERNAL)
     return "file_ref_ext expected to be external.";
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestGetName() {
@@ -142,7 +142,7 @@ std::string TestFileRef::TestGetName() {
   if (name == "")
     return ReportMismatch("FileRef::GetName", name, "<a temp file>");
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestGetPath() {
@@ -185,7 +185,7 @@ std::string TestFileRef::TestGetPath() {
   if (!file_ref_ext.GetPath().is_undefined())
     return "The path of an external FileRef should be void.";
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestGetParent() {
@@ -240,7 +240,7 @@ std::string TestFileRef::TestGetParent() {
   if (!file_ref_ext.GetParent().is_null())
     return "The parent of an external FileRef should be null.";
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestMakeDirectory() {
@@ -324,7 +324,7 @@ std::string TestFileRef::TestMakeDirectory() {
            "should have failed.";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestQueryAndTouchFile() {
@@ -408,7 +408,7 @@ std::string TestFileRef::TestQueryAndTouchFile() {
     return ReportError("FileSystem::Query", rv);
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestDeleteFileAndDirectory() {
@@ -492,7 +492,7 @@ std::string TestFileRef::TestDeleteFileAndDirectory() {
     return ReportError("FileSystem::Delete", rv);
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestFileRef::TestRenameFileAndDirectory() {
@@ -574,5 +574,5 @@ std::string TestFileRef::TestRenameFileAndDirectory() {
     return ReportError("FileSystem::Rename", rv);
   }
 
-  return "";
+  PASS();
 }
diff --git a/ppapi/tests/test_graphics_2d.cc b/ppapi/tests/test_graphics_2d.cc
index d57ce48..b673b81 100644
--- a/ppapi/tests/test_graphics_2d.cc
+++ b/ppapi/tests/test_graphics_2d.cc
@@ -234,7 +234,7 @@ std::string TestGraphics2D::TestInvalidResource() {
                                         &zero_zero))
     return "ReadImageData succeeded with a NULL resource";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestInvalidSize() {
@@ -258,14 +258,14 @@ std::string TestGraphics2D::TestInvalidSize() {
   ASSERT_FALSE(!!graphics_2d_interface_->Create(
       pp::Module::Get()->pp_module(), &size, PP_FALSE));
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestHumongous() {
   pp::Graphics2D a(instance_, pp::Size(100000, 100000), false);
   if (!a.is_null())
     return "Humongous device created";
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestInitToZero() {
@@ -288,7 +288,7 @@ std::string TestGraphics2D::TestInitToZero() {
   if (!IsSquareInImage(image, 0, pp::Rect(0, 0, w, h), 0))
     return "Got a nonzero pixel";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestDescribe() {
@@ -307,7 +307,7 @@ std::string TestGraphics2D::TestDescribe() {
   if (size.width != w || size.height != h || is_always_opaque != PP_FALSE)
     return "Mismatch of data.";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestPaint() {
@@ -386,7 +386,7 @@ std::string TestGraphics2D::TestPaint() {
                     subset_color))
     return "Subset paint failed.";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestScroll() {
@@ -448,7 +448,7 @@ std::string TestGraphics2D::TestScroll() {
   if (!CompareImages(test_image, readback))
     return "TC2, Read back image is not the same as test image.";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestReplace() {
@@ -502,7 +502,7 @@ std::string TestGraphics2D::TestReplace() {
   if (!IsDCUniformColor(dc, swapped_color))
     return "Flushed color incorrect (or failure in readback).";
 
-  return "";
+  PASS();
 }
 
 std::string TestGraphics2D::TestFlush() {
@@ -544,5 +544,5 @@ std::string TestGraphics2D::TestFlush() {
       return "Second flush succeeded before callback ran.";
   }
 
-  return "";
+  PASS();
 }
diff --git a/ppapi/tests/test_image_data.cc b/ppapi/tests/test_image_data.cc
index b841e4e..ab8894a 100644
--- a/ppapi/tests/test_image_data.cc
+++ b/ppapi/tests/test_image_data.cc
@@ -37,7 +37,7 @@ std::string TestImageData::TestInvalidFormat() {
   if (!b.is_null())
     return "Negative image data format accepted";
 
-  return "";
+  PASS();
 }
 
 std::string TestImageData::TestInvalidSize() {
@@ -76,7 +76,7 @@ std::string TestImageData::TestInvalidSize() {
   if (rsrc)
     return "Negative width accepted";
 
-  return "";
+  PASS();
 }
 
 std::string TestImageData::TestHugeSize() {
@@ -84,7 +84,7 @@ std::string TestImageData::TestHugeSize() {
                           pp::Size(100000000, 100000000), true);
   if (!huge_size.is_null())
     return "31-bit overflow size accepted";
-  return "";
+  PASS();
 }
 
 std::string TestImageData::TestInitToZero() {
@@ -113,7 +113,7 @@ std::string TestImageData::TestInitToZero() {
     }
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestImageData::TestIsImageData() {
@@ -138,5 +138,5 @@ std::string TestImageData::TestIsImageData() {
   if (!image_data_interface_->IsImageData(img.pp_resource()))
     return "Image data should be identified as an image";
 
-  return "";
+  PASS();
 }
diff --git a/ppapi/tests/test_instance_deprecated.cc b/ppapi/tests/test_instance_deprecated.cc
index 74e929a..9ff1e7e 100644
--- a/ppapi/tests/test_instance_deprecated.cc
+++ b/ppapi/tests/test_instance_deprecated.cc
@@ -118,5 +118,5 @@ std::string TestInstance::TestExecuteScript() {
   ASSERT_TRUE(ret.is_undefined());
   ASSERT_TRUE(exception.is_string());  // Don't know exactly what it will say.
 
-  return std::string();
+  PASS();
 }
diff --git a/ppapi/tests/test_paint_aggregator.cc b/ppapi/tests/test_paint_aggregator.cc
index 7859a70..be3f19c 100644
--- a/ppapi/tests/test_paint_aggregator.cc
+++ b/ppapi/tests/test_paint_aggregator.cc
@@ -40,7 +40,7 @@ std::string TestPaintAggregator::TestInitialState() {
   pp::PaintAggregator greg;
   if (greg.HasPendingUpdate())
     return "Pending update invalid";
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestSingleInvalidation() {
@@ -55,7 +55,7 @@ std::string TestPaintAggregator::TestSingleInvalidation() {
 
   ASSERT_TRUE(rect == greg.GetPendingUpdate().paint_rects[0]);
 
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestDoubleDisjointInvalidation() {
@@ -74,7 +74,7 @@ std::string TestPaintAggregator::TestDoubleDisjointInvalidation() {
   ASSERT_TRUE(2U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(expected_bounds == greg.GetPendingUpdate().paint_bounds);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestSingleScroll() {
@@ -93,7 +93,7 @@ std::string TestPaintAggregator::TestSingleScroll() {
   ASSERT_TRUE(2U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(expected_bounds == greg.GetPendingUpdate().paint_bounds);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestDoubleOverlappingScroll() {
@@ -119,7 +119,7 @@ std::string TestPaintAggregator::TestDoubleOverlappingScroll() {
   pp::Rect resulting_damage = greg.GetPendingUpdate().paint_rects[0];
   pp::Rect expected_damage(1, 2, 2, 4);
   ASSERT_TRUE(expected_damage == resulting_damage);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestNegatingScroll() {
@@ -135,7 +135,7 @@ std::string TestPaintAggregator::TestNegatingScroll() {
   greg.ScrollRect(rect, delta2);
 
   ASSERT_FALSE(greg.HasPendingUpdate());
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestDiagonalScroll() {
@@ -153,7 +153,7 @@ std::string TestPaintAggregator::TestDiagonalScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestContainedPaintAfterScroll() {
@@ -174,7 +174,7 @@ std::string TestPaintAggregator::TestContainedPaintAfterScroll() {
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
   ASSERT_TRUE(paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestContainedPaintBeforeScroll() {
@@ -197,7 +197,7 @@ std::string TestPaintAggregator::TestContainedPaintBeforeScroll() {
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
   ASSERT_TRUE(paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestContainedPaintsBeforeAndAfterScroll() {
@@ -222,7 +222,7 @@ std::string TestPaintAggregator::TestContainedPaintsBeforeAndAfterScroll() {
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
   ASSERT_TRUE(expected_paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestLargeContainedPaintAfterScroll() {
@@ -240,7 +240,7 @@ std::string TestPaintAggregator::TestLargeContainedPaintAfterScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestLargeContainedPaintBeforeScroll() {
@@ -258,7 +258,7 @@ std::string TestPaintAggregator::TestLargeContainedPaintBeforeScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestOverlappingPaintBeforeScroll() {
@@ -278,7 +278,7 @@ std::string TestPaintAggregator::TestOverlappingPaintBeforeScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(expected_paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestOverlappingPaintAfterScroll() {
@@ -298,7 +298,7 @@ std::string TestPaintAggregator::TestOverlappingPaintAfterScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(expected_paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestDisjointPaintBeforeScroll() {
@@ -317,7 +317,7 @@ std::string TestPaintAggregator::TestDisjointPaintBeforeScroll() {
 
   ASSERT_TRUE(paint_rect == greg.GetPendingUpdate().paint_rects[0]);
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestDisjointPaintAfterScroll() {
@@ -336,7 +336,7 @@ std::string TestPaintAggregator::TestDisjointPaintAfterScroll() {
 
   ASSERT_TRUE(paint_rect == greg.GetPendingUpdate().paint_rects[0]);
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestContainedPaintTrimmedByScroll() {
@@ -358,7 +358,7 @@ std::string TestPaintAggregator::TestContainedPaintTrimmedByScroll() {
 
   ASSERT_TRUE(expected_paint_rect == greg.GetPendingUpdate().paint_rects[0]);
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
-  return std::string();
+  PASS();
 }
 
 std::string TestPaintAggregator::TestContainedPaintEliminatedByScroll() {
@@ -376,7 +376,7 @@ std::string TestPaintAggregator::TestContainedPaintEliminatedByScroll() {
   ASSERT_TRUE(1U == greg.GetPendingUpdate().paint_rects.size());
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
-  return std::string();
+  PASS();
 }
 
 std::string
@@ -400,7 +400,7 @@ TestPaintAggregator::TestContainedPaintAfterScrollTrimmedByScrollDamage() {
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
   ASSERT_TRUE(expected_scroll_damage == greg.GetPendingUpdate().paint_rects[1]);
   ASSERT_TRUE(expected_paint_rect == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
 
 std::string
@@ -422,5 +422,5 @@ TestPaintAggregator::TestContainedPaintAfterScrollEliminatedByScrollDamage() {
 
   ASSERT_TRUE(scroll_rect == greg.GetPendingUpdate().scroll_rect);
   ASSERT_TRUE(expected_scroll_damage == greg.GetPendingUpdate().paint_rects[0]);
-  return std::string();
+  PASS();
 }
diff --git a/ppapi/tests/test_transport.cc b/ppapi/tests/test_transport.cc
index 2f3c09f..bcb7552 100644
--- a/ppapi/tests/test_transport.cc
+++ b/ppapi/tests/test_transport.cc
@@ -32,5 +32,5 @@ void TestTransport::RunTest() {
 
 std::string TestTransport::TestFirstTransport() {
   // TODO(juberti): actual test
-  return "";
+  PASS();
 }
diff --git a/ppapi/tests/test_url_loader.cc b/ppapi/tests/test_url_loader.cc
index 7d4b3b2..8b0dfc6 100644
--- a/ppapi/tests/test_url_loader.cc
+++ b/ppapi/tests/test_url_loader.cc
@@ -242,7 +242,7 @@ std::string TestURLLoader::TestStreamToFile() {
   if (file_descriptor < 0)
     return "FileIO::GetOSFileDescriptor() returned a bad file descriptor.";
 
-  return "";
+  PASS();
 }
 
 std::string TestURLLoader::TestSameOriginRestriction() {
@@ -265,7 +265,7 @@ std::string TestURLLoader::TestSameOriginRestriction() {
     }
   }
 
-  return "";
+  PASS();
 }
 
 // This test should cause a redirect and ensure that the loader runs
diff --git a/ppapi/tests/test_url_util.cc b/ppapi/tests/test_url_util.cc
index ea91506..0f4e112 100644
--- a/ppapi/tests/test_url_util.cc
+++ b/ppapi/tests/test_url_util.cc
@@ -65,7 +65,7 @@ std::string TestUrlUtil::TestCanonicalize() {
   ASSERT_TRUE(ComponentEquals(c.query, 0, -1));
   ASSERT_TRUE(ComponentEquals(c.ref, 0, -1));
 
-  return std::string();
+  PASS();
 }
 
 std::string TestUrlUtil::TestResolveRelative() {
@@ -92,7 +92,7 @@ std::string TestUrlUtil::TestResolveRelative() {
       ASSERT_TRUE(result.AsString() == test_cases[i].expected);
     }
   }
-  return std::string();
+  PASS();
 }
 
 std::string TestUrlUtil::TestIsSameSecurityOrigin() {
@@ -100,18 +100,18 @@ std::string TestUrlUtil::TestIsSameSecurityOrigin() {
                                            "http://example.com/"));
   ASSERT_TRUE(util_->IsSameSecurityOrigin("http://google.com/foo",
                                           "http://google.com/bar"));
-  return std::string();
+  PASS();
 }
 
 std::string TestUrlUtil::TestDocumentCanRequest() {
   // This is hard to test, but we can at least verify we can't request
   // some random domain.
   ASSERT_FALSE(util_->DocumentCanRequest(*instance_, "http://evil.com/"));
-  return std::string();
+  PASS();
 }
 
 std::string TestUrlUtil::TestDocumentCanAccessDocument() {
   // This is hard to test, but we can at least verify we can access ourselves.
   ASSERT_TRUE(util_->DocumentCanAccessDocument(*instance_, *instance_));
-  return std::string();
+  PASS();
 }
diff --git a/ppapi/tests/test_var_deprecated.cc b/ppapi/tests/test_var_deprecated.cc
index b4bdee9..724e914 100644
--- a/ppapi/tests/test_var_deprecated.cc
+++ b/ppapi/tests/test_var_deprecated.cc
@@ -73,7 +73,7 @@ std::string TestVarDeprecated::TestBasicString() {
   ASSERT_TRUE(testing_interface_->GetLiveObjectCount(
       pp::Module::Get()->pp_module()) == before_object);
 
-  return std::string();
+  PASS();
 }
 
 std::string TestVarDeprecated::TestInvalidAndEmpty() {
@@ -101,7 +101,7 @@ std::string TestVarDeprecated::TestInvalidAndEmpty() {
   ASSERT_EQ(0, len);
   ASSERT_NE(NULL, result);
 
-  return std::string();
+  PASS();
 }
 
 std::string TestVarDeprecated::TestInvalidUtf8() {
@@ -111,7 +111,7 @@ std::string TestVarDeprecated::TestInvalidUtf8() {
   if (!sjis.is_null())
     return "Non-UTF8 string permitted.";
 
-  return "";
+  PASS();
 }
 
 std::string TestVarDeprecated::TestNullInputInUtf8Conversion() {
@@ -145,7 +145,7 @@ std::string TestVarDeprecated::TestNullInputInUtf8Conversion() {
     return "Expected NULL input to make an empty string Var.";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestVarDeprecated::TestValidUtf8() {
@@ -169,7 +169,7 @@ std::string TestVarDeprecated::TestValidUtf8() {
     return "String mismatches on conversion back from PP_Var.";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestVarDeprecated::TestUtf8WithEmbeddedNulls() {
@@ -193,7 +193,7 @@ std::string TestVarDeprecated::TestUtf8WithEmbeddedNulls() {
     return "String mismatches on conversion back from PP_Var.";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestVarDeprecated::TestVarToUtf8ForWrongType() {
@@ -247,7 +247,7 @@ std::string TestVarDeprecated::TestVarToUtf8ForWrongType() {
     return "Expected NULL on string conversion from Double var.";
   }
 
-  return "";
+  PASS();
 }
 
 std::string TestVarDeprecated::TestHasPropertyAndMethod() {
@@ -324,6 +324,6 @@ std::string TestVarDeprecated::TestHasPropertyAndMethod() {
   ASSERT_TRUE(testing_interface_->GetLiveObjectCount(
       pp::Module::Get()->pp_module()) == before_objects);
 
-  return std::string();
+  PASS();
 }