Rewrite isolate_smoke_test.py to increase the coverage.

tools/isolate/data/isolate/with_flag.py

Index: tools/isolate/data/isolate/with_flag.py
diff --git a/tools/isolate/data/isolate/with_flag.py b/tools/isolate/data/isolate/with_flag.py
new file mode 100755
index 0000000000000000000000000000000000000000..31749eb3567f7fa78e149effb86fecf4648c3519
--- /dev/null
+++ b/tools/isolate/data/isolate/with_flag.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import sys
+
+
+def main():
+  print 'with_flag: Verify the test data files were mapped properly'
+  assert len(sys.argv) == 2
+  mode = sys.argv[1]
+  assert mode in ('run', 'trace')
+  files = sorted(os.listdir('files1'))
+  tree = {
+    'test_file1.txt': 'Foo\n',
+    'test_file2.txt': 'Bar\n',
+  }
+
+  # Ignore .svn directory which happens to be there with --mode=trace
+  # from a svn checkout. The file shouldn't be there when --mode=run is used.
+  if mode == 'trace' and '.svn' in files:
+    files.remove('.svn')
+
+  if files != sorted(tree):
+    print '%s != %s' % (files, sorted(tree))
+    return 2
+  for k, v in tree.iteritems():
+    content = open(os.path.join('files1', k), 'rb').read()
+    if v != content:
+      print '%s: %r != %r' % (k, v, content)
+      return 3
+
+  root_dir = os.path.dirname(os.path.abspath(__file__))
+  parent_dir, base = os.path.split(root_dir)
+  if mode == 'trace':
+    # Verify the parent directory.
+    parent_dir, base2 = os.path.split(parent_dir)
+    if base != 'isolate' or base2 != 'data':
+      print 'mode trace: Invalid root dir %s' % root_dir
+      return 4
+  else:
+    # Verify that we are not inside a checkout.
+    if base == 'data':
+      print 'mode run: Invalid root dir %s' % root_dir
+      return 5
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())