1 files changed, 69 insertions, 0 deletions
diff --git a/xpcom/tests/gtest/TestEscapeURL.cpp b/xpcom/tests/gtest/TestEscapeURL.cpp
new file mode 100644
index 0000000000..2a8faf5f0c
--- /dev/null
+++ b/xpcom/tests/gtest/TestEscapeURL.cpp
@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsEscape.h"
+#include "gtest/gtest.h"
+
+using namespace mozilla;
+
+// Testing for failure here would be somewhat hard in automation. Locally you
+// could use something like ulimit to create a failure.
+
+TEST(EscapeURL, FallibleNoEscape)
+{
+  // Tests the fallible version of NS_EscapeURL works as expected when no
+  // escaping is necessary.
+  nsCString toEscape("data:,Hello%2C%20World!");
+  nsCString escaped;
+  nsresult rv = NS_EscapeURL(toEscape, esc_OnlyNonASCII, escaped, fallible);
+  EXPECT_EQ(rv, NS_OK);
+  // Nothing should have been escaped, they should be the same string.
+  EXPECT_STREQ(toEscape.BeginReading(), escaped.BeginReading());
+  // We expect them to point at the same buffer.
+  EXPECT_EQ(toEscape.BeginReading(), escaped.BeginReading());
+}
+
+TEST(EscapeURL, FallibleEscape)
+{
+  // Tests the fallible version of NS_EscapeURL works as expected when
+  // escaping is necessary.
+  nsCString toEscape("data:,Hello%2C%20World!\xC4\x9F");
+  nsCString escaped;
+  nsresult rv = NS_EscapeURL(toEscape, esc_OnlyNonASCII, escaped, fallible);
+  EXPECT_EQ(rv, NS_OK);
+  EXPECT_STRNE(toEscape.BeginReading(), escaped.BeginReading());
+  const char* const kExpected = "data:,Hello%2C%20World!%C4%9F";
+  EXPECT_STREQ(escaped.BeginReading(), kExpected);
+}
+
+TEST(EscapeURL, BadEscapeSequences)
+{
+  {
+    char bad[] = "%s\0fa";
+
+    int32_t count = nsUnescapeCount(bad);
+    EXPECT_EQ(count, 2);
+    EXPECT_STREQ(bad, "%s");
+  }
+  {
+    char bad[] = "%a";
+    int32_t count = nsUnescapeCount(bad);
+    EXPECT_EQ(count, 2);
+    EXPECT_STREQ(bad, "%a");
+  }
+  {
+    char bad[] = "%";
+    int32_t count = nsUnescapeCount(bad);
+    EXPECT_EQ(count, 1);
+    EXPECT_STREQ(bad, "%");
+  }
+  {
+    char bad[] = "%s/%s";
+    int32_t count = nsUnescapeCount(bad);
+    EXPECT_EQ(count, 5);
+    EXPECT_STREQ(bad, "%s/%s");
+  }
+}