Add push-to-trunk python port.

tools/push-to-trunk/test_scripts.py

Index: tools/push-to-trunk/test_scripts.py
diff --git a/tools/push-to-trunk/test_scripts.py b/tools/push-to-trunk/test_scripts.py
new file mode 100644
index 0000000000000000000000000000000000000000..9865adaabb3ad78262ea7f93f04230ef543bfc61
--- /dev/null
+++ b/tools/push-to-trunk/test_scripts.py
@@ -0,0 +1,428 @@
+#!/usr/bin/env python
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import os
+import tempfile
+import unittest
+
+import common_includes
+from common_includes import *
+import push_to_trunk
+from push_to_trunk import *
+
+
+TEST_CONFIG = {
+  BRANCHNAME: "test-prepare-push",
+  TRUNKBRANCH: "test-trunk-push",
+  PERSISTFILE_BASENAME: "/tmp/test-v8-push-to-trunk-tempfile",
+  TEMP_BRANCH: "test-prepare-push-temporary-branch-created-by-script",
+  DOT_GIT_LOCATION: None,
+  VERSION_FILE: None,
+  CHANGELOG_FILE: None,
+  CHANGELOG_ENTRY_FILE: "/tmp/test-v8-push-to-trunk-tempfile-changelog-entry",
+  PATCH_FILE: "/tmp/test-v8-push-to-trunk-tempfile-patch",
+  COMMITMSG_FILE: "/tmp/test-v8-push-to-trunk-tempfile-commitmsg",
+  CHROMIUM: "/tmp/test-v8-push-to-trunk-tempfile-chromium",
+  DEPS_FILE: "/tmp/test-v8-push-to-trunk-tempfile-chromium/DEPS",
+}
+
+
+class ScriptTest(unittest.TestCase):
+  def MakeEmptyTempFile(self):
+    handle, name = tempfile.mkstemp()
+    os.close(handle)
+    self._tmp_files.append(name)
+    return name
+
+  def MakeTempVersionFile(self):
+    name = self.MakeEmptyTempFile()
+    with open(name, "w") as f:
+      f.write("  // Some line...\n")
+      f.write("\n")
+      f.write("#define MAJOR_VERSION    3\n")
+      f.write("#define MINOR_VERSION    22\n")
+      f.write("#define BUILD_NUMBER     5\n")
+      f.write("#define PATCH_LEVEL      0\n")
+      f.write("  // Some line...\n")
+      f.write("#define IS_CANDIDATE_VERSION 0\n")
+    return name
+
+  def MakeStep(self, step_class=Step, state=None):
+    state = state or {}
+    step = step_class()
+    step.SetConfig(TEST_CONFIG)
+    step.SetState(state)
+    step.SetNumber(0)
+    step.SetSideEffectHandler(self)
+    return step
+
+  def GitMock(self, cmd, args="", pipe=True):
+    self._git_index += 1
+    try:
+      git_invocation = self._git_recipe[self._git_index]
+    except IndexError:
+      raise Exception("Calling git %s" % args)
+    if git_invocation[0] != args:
+      raise Exception("Expected: %s - Actual: %s" % (git_invocation[0], args))
+    if len(git_invocation) == 3:
+      # Run optional function checking the context during this git command.
+      git_invocation[2]()
+    return git_invocation[1]
+
+  def LogMock(self, cmd, args=""):
+    print "Log: %s %s" % (cmd, args)
+
+  MOCKS = {
+    "git": GitMock,
+    "vi": LogMock,
+  }
+
+  def Command(self, cmd, args="", prefix="", pipe=True):
+    return ScriptTest.MOCKS[cmd](self, cmd, args)
+
+  def ReadLine(self):
+    self._rl_index += 1
+    try:
+      return self._rl_recipe[self._rl_index]
+    except IndexError:
+      raise Exception("Calling readline too often")
+
+  def setUp(self):
+    self._git_recipe = []
+    self._git_index = -1
+    self._rl_recipe = []
+    self._rl_index = -1
+    self._tmp_files = []
+
+  def tearDown(self):
+    Command("rm", "-rf %s*" % TEST_CONFIG[PERSISTFILE_BASENAME])
+
+    # Clean up temps. Doesn't work automatically.
+    for name in self._tmp_files:
+      if os.path.exists(name):
+        os.remove(name)
+
+    if self._git_index < len(self._git_recipe) -1:
+      raise Exception("Called git too seldom: %d vs. %d" %
+                      (self._git_index, len(self._git_recipe)))
+    if self._rl_index < len(self._rl_recipe) -1:
+      raise Exception("Too little input: %d vs. %d" %
+                      (self._rl_index, len(self._rl_recipe)))
+
+  def testPersistRestore(self):
+    self.MakeStep().Persist("test1", "")
+    self.assertEquals("", self.MakeStep().Restore("test1"))
+    self.MakeStep().Persist("test2", "AB123")
+    self.assertEquals("AB123", self.MakeStep().Restore("test2"))
+
+  def testGitOrig(self):
+    self.assertTrue(Command("git", "--version").startswith("git version"))
+
+  def testGitMock(self):
+    self._git_recipe = [["--version", "git version 1.2.3"], ["dummy", ""]]
+    self.assertEquals("git version 1.2.3", self.MakeStep().Git("--version"))
+    self.assertEquals("", self.MakeStep().Git("dummy"))
+
+  def testCommonPrepareDefault(self):
+    self._git_recipe = [
+      ["status -s -uno", ""],
+      ["status -s -b -uno", "## some_branch"],
+      ["svn fetch", ""],
+      ["branch", "  branch1\n* %s" % TEST_CONFIG[TEMP_BRANCH]],
+      ["branch -D %s" % TEST_CONFIG[TEMP_BRANCH], ""],
+      ["checkout -b %s" % TEST_CONFIG[TEMP_BRANCH], ""],
+      ["branch", ""],
+    ]
+    self._rl_recipe = ["Y"]
+    self.MakeStep().CommonPrepare()
+    self.assertEquals("some_branch", self.MakeStep().Restore("current_branch"))
+
+  def testCommonPrepareNoConfirm(self):
+    self._git_recipe = [
+      ["status -s -uno", ""],
+      ["status -s -b -uno", "## some_branch"],
+      ["svn fetch", ""],
+      ["branch", "  branch1\n* %s" % TEST_CONFIG[TEMP_BRANCH]],
+    ]
+    self._rl_recipe = ["n"]
+    self.assertRaises(Exception, self.MakeStep().CommonPrepare)
+    self.assertEquals("some_branch", self.MakeStep().Restore("current_branch"))
+
+  def testCommonPrepareDeleteBranchFailure(self):
+    self._git_recipe = [
+      ["status -s -uno", ""],
+      ["status -s -b -uno", "## some_branch"],
+      ["svn fetch", ""],
+      ["branch", "  branch1\n* %s" % TEST_CONFIG[TEMP_BRANCH]],
+      ["branch -D %s" % TEST_CONFIG[TEMP_BRANCH], None],
+    ]
+    self._rl_recipe = ["Y"]
+    self.assertRaises(Exception, self.MakeStep().CommonPrepare)
+    self.assertEquals("some_branch", self.MakeStep().Restore("current_branch"))
+
+  def testInitialEnvironmentChecks(self):
+    TEST_CONFIG[DOT_GIT_LOCATION] = self.MakeEmptyTempFile()
+    os.environ["EDITOR"] = "vi"
+    self.MakeStep().InitialEnvironmentChecks()
+
+  def testReadAndPersistVersion(self):
+    TEST_CONFIG[VERSION_FILE] = self.MakeTempVersionFile()
+    step = self.MakeStep()
+    step.ReadAndPersistVersion()
+    self.assertEquals("3", self.MakeStep().Restore("major"))
+    self.assertEquals("22", self.MakeStep().Restore("minor"))
+    self.assertEquals("5", self.MakeStep().Restore("build"))
+    self.assertEquals("0", self.MakeStep().Restore("patch"))
+    self.assertEquals("3", step._state["major"])
+    self.assertEquals("22", step._state["minor"])
+    self.assertEquals("5", step._state["build"])
+    self.assertEquals("0", step._state["patch"])
+
+  def testRegex(self):
+    self.assertEqual("(issue 321)",
+                     re.sub(r"BUG=v8:(.*)$", r"(issue \1)", "BUG=v8:321"))
+    self.assertEqual("(Chromium issue 321)",
+                     re.sub(r"BUG=(.*)$", r"(Chromium issue \1)", "BUG=321"))
+
+    cl = "  too little\n\ttab\ttab\n         too much\n        trailing  "
+    cl = MSub(r"\t", r"        ", cl)
+    cl = MSub(r"^ {1,7}([^ ])", r"        \1", cl)
+    cl = MSub(r"^ {9,80}([^ ])", r"        \1", cl)
+    cl = MSub(r" +$", r"", cl)
+    self.assertEqual("        too little\n"
+                     "        tab        tab\n"
+                     "        too much\n"
+                     "        trailing", cl)
+
+    self.assertEqual("//\n#define BUILD_NUMBER  3\n",
+                     MSub(r"(?<=#define BUILD_NUMBER)(?P<space>\s+)\d*$",
+                          r"\g<space>3",
+                          "//\n#define BUILD_NUMBER  321\n"))
+
+  def testPrepareChangeLog(self):
+    TEST_CONFIG[VERSION_FILE] = self.MakeTempVersionFile()
+    TEST_CONFIG[CHANGELOG_ENTRY_FILE] = self.MakeEmptyTempFile()
+
+    self._git_recipe = [
+      ["log 1234..HEAD --format=%H", "rev1\nrev2"],
+      ["log -1 rev1 --format=\"%w(80,8,8)%s\"", "        Title text 1"],
+      ["log -1 rev1 --format=\"%B\"", "Title\n\nBUG=\n"],
+      ["log -1 rev1 --format=\"%w(80,8,8)(%an)\"",
+       "        author1@chromium.org"],
+      ["log -1 rev2 --format=\"%w(80,8,8)%s\"", "        Title text 2"],
+      ["log -1 rev2 --format=\"%B\"", "Title\n\nBUG=321\n"],
+      ["log -1 rev2 --format=\"%w(80,8,8)(%an)\"",
+       "        author2@chromium.org"],
+    ]
+
+    self.MakeStep().Persist("last_push", "1234")
+    self.MakeStep(PrepareChangeLog).Run()
+
+    cl = FileToText(TEST_CONFIG[CHANGELOG_ENTRY_FILE])
+    self.assertTrue(re.search(r"\d+\-\d+\-\d+: Version 3\.22\.5", cl))
+    self.assertTrue(re.search(r"        Title text 1", cl))
+    self.assertTrue(re.search(r"        Title text 2", cl))
+    self.assertTrue(re.search(r"        author1@chromium.org", cl))
+    self.assertTrue(re.search(r"        author2@chromium.org", cl))
+    self.assertTrue(re.search(r"        \(Chromium issue 321\)", cl))
+    self.assertFalse(re.search(r"BUG=", cl))
+    self.assertEquals("3", self.MakeStep().Restore("major"))
+    self.assertEquals("22", self.MakeStep().Restore("minor"))
+    self.assertEquals("5", self.MakeStep().Restore("build"))
+    self.assertEquals("0", self.MakeStep().Restore("patch"))
+
+  def testEditChangeLog(self):
+    TEST_CONFIG[CHANGELOG_ENTRY_FILE] = self.MakeEmptyTempFile()
+    TEST_CONFIG[CHANGELOG_FILE] = self.MakeEmptyTempFile()
+    TextToFile("        Original CL", TEST_CONFIG[CHANGELOG_FILE])
+    TextToFile("  New  \n\tLines  \n", TEST_CONFIG[CHANGELOG_ENTRY_FILE])
+    os.environ["EDITOR"] = "vi"
+
+    self._rl_recipe = [
+      "",  # Open editor.
+    ]
+
+    self.MakeStep(EditChangeLog).Run()
+
+    self.assertEquals("        New\n        Lines\n\n\n        Original CL",
+                      FileToText(TEST_CONFIG[CHANGELOG_FILE]))
+
+  def testIncrementVersion(self):
+    TEST_CONFIG[VERSION_FILE] = self.MakeTempVersionFile()
+    self.MakeStep().Persist("build", "5")
+
+    self._rl_recipe = [
+      "Y",  # Increment build number.
+    ]
+
+    self.MakeStep(IncrementVersion).Run()
+
+    self.assertEquals("3", self.MakeStep().Restore("new_major"))
+    self.assertEquals("22", self.MakeStep().Restore("new_minor"))
+    self.assertEquals("6", self.MakeStep().Restore("new_build"))
+    self.assertEquals("0", self.MakeStep().Restore("new_patch"))
+
+  def testSquashCommits(self):
+    TEST_CONFIG[CHANGELOG_ENTRY_FILE] = self.MakeEmptyTempFile()
+    with open(TEST_CONFIG[CHANGELOG_ENTRY_FILE], "w") as f:
+      f.write("1999-11-11: Version 3.22.5\n")
+      f.write("\n")
+      f.write("        Log text 1.\n")
+      f.write("        Chromium issue 12345\n")
+      f.write("\n")
+      f.write("        Performance and stability improvements on all "
+              "platforms.\n")
+
+    self._git_recipe = [
+      ["diff svn/trunk hash1", "patch content"],
+    ]
+
+    self.MakeStep().Persist("prepare_commit_hash", "hash1")
+    self.MakeStep().Persist("date", "1999-11-11")
+
+    self.MakeStep(SquashCommits).Run()
+
+    msg = FileToText(TEST_CONFIG[COMMITMSG_FILE])
+    self.assertTrue(re.search(r"Version 3\.22\.5", msg))
+    self.assertTrue(re.search(r"Performance and stability", msg))
+    self.assertTrue(re.search(r"Log text 1\. Chromium issue 12345", msg))
+    self.assertFalse(re.search(r"\d+\-\d+\-\d+", msg))
+
+    patch = FileToText(TEST_CONFIG[ PATCH_FILE])
+    self.assertTrue(re.search(r"patch content", patch))
+
+  def testPushToTrunk(self):
+    TEST_CONFIG[DOT_GIT_LOCATION] = self.MakeEmptyTempFile()
+    TEST_CONFIG[VERSION_FILE] = self.MakeTempVersionFile()
+    TEST_CONFIG[CHANGELOG_ENTRY_FILE] = self.MakeEmptyTempFile()
+    TEST_CONFIG[CHANGELOG_FILE] = self.MakeEmptyTempFile()
+    if not os.path.exists(TEST_CONFIG[CHROMIUM]):
+      os.makedirs(TEST_CONFIG[CHROMIUM])
+    TextToFile("1999-04-05: Version 3.22.4", TEST_CONFIG[CHANGELOG_FILE])
+    TextToFile("Some line\n   \"v8_revision\": \"123444\",\n  some line",
+                 TEST_CONFIG[DEPS_FILE])
+    os.environ["EDITOR"] = "vi"
+
+    def CheckPreparePush():
+      cl = FileToText(TEST_CONFIG[CHANGELOG_FILE])
+      self.assertTrue(re.search(r"Version 3.22.5", cl))
+      self.assertTrue(re.search(r"        Log text 1", cl))
+      self.assertTrue(re.search(r"        \(issue 321\)", cl))
+      version = FileToText(TEST_CONFIG[VERSION_FILE])
+      self.assertTrue(re.search(r"#define BUILD_NUMBER\s+6", version))
+
+    def CheckSVNCommit():
+      commit = FileToText(TEST_CONFIG[COMMITMSG_FILE])
+      self.assertTrue(re.search(r"Version 3.22.5", commit))
+      self.assertTrue(re.search(r"Log text 1. \(issue 321\)", commit))
+      version = FileToText(TEST_CONFIG[VERSION_FILE])
+      self.assertTrue(re.search(r"#define MINOR_VERSION\s+22", version))
+      self.assertTrue(re.search(r"#define BUILD_NUMBER\s+5", version))
+      self.assertFalse(re.search(r"#define BUILD_NUMBER\s+6", version))
+      self.assertTrue(re.search(r"#define PATCH_LEVEL\s+0", version))
+      self.assertTrue(re.search(r"#define IS_CANDIDATE_VERSION\s+0", version))
+
+    self._git_recipe = [
+      ["status -s -uno", ""],
+      ["status -s -b -uno", "## some_branch\n"],
+      ["svn fetch", ""],
+      ["branch", "  branch1\n* branch2\n"],
+      ["checkout -b %s" % TEST_CONFIG[TEMP_BRANCH], ""],
+      ["branch", "  branch1\n* branch2\n"],
+      ["branch", "  branch1\n* branch2\n"],
+      ["checkout -b %s svn/bleeding_edge" % TEST_CONFIG[BRANCHNAME], ""],
+      ["log -1 --format=%H ChangeLog", "1234\n"],
+      ["log -1 1234", "Last push ouput\n"],
+      ["log 1234..HEAD --format=%H", "rev1\n"],
+      ["log -1 rev1 --format=\"%w(80,8,8)%s\"", "        Log text 1.\n"],
+      ["log -1 rev1 --format=\"%B\"", "Text\nBUG=v8:321\nText\n"],
+      ["log -1 rev1 --format=\"%w(80,8,8)(%an)\"",
+       "        author1@chromium.org\n"],
+      [("commit -a -m \"Prepare push to trunk.  "
+        "Now working on version 3.22.6.\""),
+       " 2 files changed\n",
+        CheckPreparePush],
+      ["cl upload -r \"reviewer@chromium.org\" --send-mail", "done\n"],
+      ["cl dcommit", "Closing issue\n"],
+      ["svn fetch", "fetch result\n"],
+      ["checkout svn/bleeding_edge", ""],
+      [("log -1 --format=%H --grep=\"Prepare push to trunk.  "
+        "Now working on version 3.22.6.\""),
+       "hash1\n"],
+      ["diff svn/trunk hash1", "patch content\n"],
+      ["checkout -b %s svn/trunk" % TEST_CONFIG[TRUNKBRANCH], ""],
+      ["apply --index --reject  \"%s\"" % TEST_CONFIG[PATCH_FILE], ""],
+      ["add \"%s\"" % TEST_CONFIG[VERSION_FILE], ""],
+      ["commit -F \"%s\"" % TEST_CONFIG[COMMITMSG_FILE], "", CheckSVNCommit],
+      ["svn dcommit 2>&1", "Some output\nCommitted r123456\nSome output\n"],
+      ["svn tag 3.22.5 -m \"Tagging version 3.22.5\"", ""],
+      ["status -s -uno", ""],
+      ["checkout master", ""],
+      ["pull", ""],
+      ["checkout -b v8-roll-123456", ""],
+      [("commit -am \"Update V8 to version 3.22.5.\n\n"
+        "TBR=reviewer@chromium.org\""),
+       ""],
+      ["cl upload --send-mail", ""],
+      ["checkout -f some_branch", ""],
+      ["branch -D %s" % TEST_CONFIG[TEMP_BRANCH], ""],
+      ["branch -D %s" % TEST_CONFIG[BRANCHNAME], ""],
+      ["branch -D %s" % TEST_CONFIG[TRUNKBRANCH], ""],
+    ]
+    self._rl_recipe = [
+      "Y",  # Confirm last push.
+      "",  # Open editor.
+      "Y",  # Increment build number.
+      "reviewer@chromium.org",  # V8 reviewer.
+      "LGTX",  # Enter LGTM for V8 CL (wrong).
+      "LGTM",  # Enter LGTM for V8 CL.
+      "Y",  # Sanity check.
+      "reviewer@chromium.org",  # Chromium reviewer.
+    ]
+
+    class Options( object ):
+      pass
+
+    options = Options()
+    options.s = 0
+    options.l = None
+    options.c = TEST_CONFIG[CHROMIUM]
+    RunScript(TEST_CONFIG, options, self)
+
+    deps = FileToText(TEST_CONFIG[DEPS_FILE])
+    self.assertTrue(re.search("\"v8_revision\": \"123456\"", deps))
+
+    cl = FileToText(TEST_CONFIG[CHANGELOG_FILE])
+    self.assertTrue(re.search(r"\d\d\d\d\-\d+\-\d+: Version 3\.22\.5", cl))
+    self.assertTrue(re.search(r"        Log text 1", cl))
+    self.assertTrue(re.search(r"        \(issue 321\)", cl))
+    self.assertTrue(re.search(r"1999\-04\-05: Version 3\.22\.4", cl))
+
+    # Note: The version file is on build number 5 again in the end of this test
+    # since the git command that merges to the bleeding edge branch is mocked
+    # out.