Move trigger tests into pytest

Note that we split the tests between endpoints/building and buildtrigger

endpoints/test/test_building.py

@@ -1,6 +1,7 @@
 import pytest
 
 from data import model
+from buildtrigger.triggerutil import raise_if_skipped_build, SkipRequestException
 from endpoints.building import (start_build, PreparedBuild, MaximumBuildsQueuedException,
                                 BuildTriggerDisabledException)
 
@@ -41,3 +42,56 @@ def test_start_build_disabled_trigger(app):
 
   with pytest.raises(BuildTriggerDisabledException):
     start_build(trigger.repository, build)
+
+
+@pytest.mark.parametrize('ref, expected_tags', [
+  ('ref/heads/somebranch', ['somebranch']),
+  ('ref/heads/master', ['master', 'latest']),
+
+  ('ref/tags/somebranch', ['somebranch']),
+  ('ref/tags/master', ['master', 'latest']),
+
+  ('ref/heads/slash/branch', ['slash_branch']),
+  ('ref/tags/slash/tag', ['slash_tag']),
+
+  ('ref/heads/foobar#2', ['foobar_2']),
+])
+def test_tags_for_ref(ref, expected_tags):
+  prepared = PreparedBuild()
+  prepared.tags_from_ref(ref, default_branch='master')
+  assert set(prepared._tags) == set(expected_tags)
+
+
+@pytest.mark.parametrize('metadata, config', [
+  ({}, {}),
+  pytest.param({'ref': 'ref/heads/master'}, {'branchtag_regex': 'nothing'}, id='branchtag regex'),
+  pytest.param({
+    'ref': 'ref/heads/master',
+    'commit_info': {
+      'message': '[skip build]',
+    },
+  }, {}, id='commit message'),
+])
+def test_skip(metadata, config):
+  prepared = PreparedBuild()
+  prepared.metadata = metadata
+  config = config
+
+  with pytest.raises(SkipRequestException):
+    raise_if_skipped_build(prepared, config)
+
+
+def test_does_not_skip():
+  prepared = PreparedBuild()
+  prepared.metadata = {
+    'ref': 'ref/heads/master',
+    'commit_info': {
+      'message': 'some cool message',
+    },
+  }
+
+  config = {
+    'branchtag_regex': '(master)|(heads/master)',
+  }
+
+  raise_if_skipped_build(prepared, config)