Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/cmd_helper_test.py

Index: build/android/pylib/cmd_helper_test.py
diff --git a/build/android/pylib/cmd_helper_test.py b/build/android/pylib/cmd_helper_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..5155cea49aec8fea67b48f7191c939a6c70fbfc9
--- /dev/null
+++ b/build/android/pylib/cmd_helper_test.py
@@ -0,0 +1,83 @@
+# Copyright 2013 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.
+
+"""Tests for the cmd_helper module."""
+
+import unittest
+import subprocess
+
+from pylib import cmd_helper
+
+
+class CmdHelperSingleQuoteTest(unittest.TestCase):
+
+  def testSingleQuote_basic(self):
+    self.assertEquals('hello',
+                      cmd_helper.SingleQuote('hello'))
+
+  def testSingleQuote_withSpaces(self):
+    self.assertEquals("'hello world'",
+                      cmd_helper.SingleQuote('hello world'))
+
+  def testSingleQuote_withUnsafeChars(self):
+    self.assertEquals("""'hello'"'"'; rm -rf /'""",
+                      cmd_helper.SingleQuote("hello'; rm -rf /"))
+
+  def testSingleQuote_dontExpand(self):
+    test_string = 'hello $TEST_VAR'
+    cmd = 'TEST_VAR=world; echo %s' % cmd_helper.SingleQuote(test_string)
+    self.assertEquals(test_string,
+                      cmd_helper.GetCmdOutput(cmd, shell=True).rstrip())
+
+
+class CmdHelperDoubleQuoteTest(unittest.TestCase):
+
+  def testDoubleQuote_basic(self):
+    self.assertEquals('hello',
+                      cmd_helper.DoubleQuote('hello'))
+
+  def testDoubleQuote_withSpaces(self):
+    self.assertEquals('"hello world"',
+                      cmd_helper.DoubleQuote('hello world'))
+
+  def testDoubleQuote_withUnsafeChars(self):
+    self.assertEquals('''"hello\\"; rm -rf /"''',
+                      cmd_helper.DoubleQuote('hello"; rm -rf /'))
+
+  def testSingleQuote_doExpand(self):
+    test_string = 'hello $TEST_VAR'
+    cmd = 'TEST_VAR=world; echo %s' % cmd_helper.DoubleQuote(test_string)
+    self.assertEquals('hello world',
+                      cmd_helper.GetCmdOutput(cmd, shell=True).rstrip())
+
+
+class CmdHelperIterCmdOutputLinesTest(unittest.TestCase):
+  """Test IterCmdOutputLines with some calls to the unix 'seq' command."""
+
+  def testIterCmdOutputLines_success(self):
+    for num, line in enumerate(
+        cmd_helper.IterCmdOutputLines(['seq', '10']), 1):
+      self.assertEquals(num, int(line))
+
+  def testIterCmdOutputLines_exitStatusFail(self):
+    with self.assertRaises(subprocess.CalledProcessError):
+      for num, line in enumerate(
+          cmd_helper.IterCmdOutputLines('seq 10 && false', shell=True), 1):
+        self.assertEquals(num, int(line))
+      # after reading all the output we get an exit status of 1
+
+  def testIterCmdOutputLines_exitStatusIgnored(self):
+    for num, line in enumerate(
+        cmd_helper.IterCmdOutputLines('seq 10 && false', shell=True,
+                                      check_status=False), 1):
+      self.assertEquals(num, int(line))
+
+  def testIterCmdOutputLines_exitStatusSkipped(self):
+    for num, line in enumerate(
+        cmd_helper.IterCmdOutputLines('seq 10 && false', shell=True), 1):
+      self.assertEquals(num, int(line))
+      # no exception will be raised because we don't attempt to read past
+      # the end of the output and, thus, the status never gets checked
+      if num == 10:
+        break