1 files changed, 67 insertions, 0 deletions
diff --git a/src/tools/singlejar/input_jar_bad_jar_test.cc b/src/tools/singlejar/input_jar_bad_jar_test.cc
new file mode 100644
index 0000000000..7e976959f2
--- /dev/null
+++ b/src/tools/singlejar/input_jar_bad_jar_test.cc
@@ -0,0 +1,67 @@
+// Copyright 2016 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <errno.h>
+#include <unistd.h>
+#include <memory>
+#include <string>
+
+#include "src/tools/singlejar/input_jar.h"
+
+#include "gtest/gtest.h"
+
+static const char kJar[] = "jar.jar";
+
+class InputJarBadJarTest : public testing::Test {
+ protected:
+  void SetUp() override {
+    input_jar_.reset(new InputJar);
+  }
+
+  // Allocates a with given name and with given size.
+  static bool AllocateFile(const char *name, size_t size) {
+    int fd = open(name, O_CREAT | O_RDWR | O_TRUNC, 0777);
+    if (fd < 0) {
+      perror(name);
+      return false;
+    }
+    if (size) {
+      if (ftruncate(fd, size) == 0) {
+        return close(fd) == 0;
+      } else {
+        auto last_error = errno;
+        close(fd);
+        errno = last_error;
+        return false;
+      }
+    } else {
+      return close(fd) == 0;
+    }
+  }
+
+  std::unique_ptr<InputJar> input_jar_;
+};
+
+TEST_F(InputJarBadJarTest, NotAJar) {
+  ASSERT_EQ(0, chdir(getenv("TEST_TMPDIR")));
+  AllocateFile(kJar, 1000);
+  ASSERT_FALSE(input_jar_->Open(kJar));
+}
+
+// Check that an empty file does not cause trouble in MappedFile.
+TEST_F(InputJarBadJarTest, EmptyFile) {
+  ASSERT_EQ(0, chdir(getenv("TEST_TMPDIR")));
+  AllocateFile(kJar, 0);
+  ASSERT_FALSE(input_jar_->Open(kJar));
+}