Add test fixture support
Adds the test fixture support and converts a few tests to exercise the
code and show how it works.
Bug: 181070625
Test: m nothing
Change-Id: I0a2b40fff93b6041f9aa8c4ef0aba91da1bc8bf3
diff --git a/android/fixture_test.go b/android/fixture_test.go
new file mode 100644
index 0000000..7bc033b
--- /dev/null
+++ b/android/fixture_test.go
@@ -0,0 +1,49 @@
+// Copyright 2021 Google Inc. 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.
+
+package android
+
+import "testing"
+
+// Make sure that FixturePreparer instances are only called once per fixture and in the order in
+// which they were added.
+func TestFixtureDedup(t *testing.T) {
+ list := []string{}
+
+ appendToList := func(s string) FixturePreparer {
+ return FixtureModifyConfig(func(_ Config) {
+ list = append(list, s)
+ })
+ }
+
+ preparer1 := appendToList("preparer1")
+ preparer2 := appendToList("preparer2")
+ preparer3 := appendToList("preparer3")
+ preparer4 := appendToList("preparer4")
+
+ preparer1Then2 := FixturePreparers(preparer1, preparer2)
+
+ preparer2Then1 := FixturePreparers(preparer2, preparer1)
+
+ buildDir := "build"
+ factory := NewFixtureFactory(&buildDir, preparer1, preparer2, preparer1, preparer1Then2)
+
+ extension := factory.Extend(preparer4, preparer2)
+
+ extension.Fixture(t, preparer1, preparer2, preparer2Then1, preparer3)
+
+ h := TestHelper{t}
+ h.AssertDeepEquals("preparers called in wrong order",
+ []string{"preparer1", "preparer2", "preparer4", "preparer3"}, list)
+}