platform_build_soong/android/fixture_test.go
Paul Duffin a560d5a91d Rename FixturePreparers to GroupFixturePreparers
FixturePreparers is a bad name for a method that creates a collection
of FixturePreparers for a couple of reasons:
* Conventionally it would be used as the name for []FixturePreparer if
  it is necessary to add behavior to that.
* There are many different types of collection, particularly when order
  matters.

Bug: 181070625
Test: m nothing
Change-Id: I55394ff369375dcac2d7b72e4d803a4818762d36
2021-03-05 18:20:33 +00:00

49 lines
1.6 KiB
Go

// 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 := GroupFixturePreparers(preparer1, preparer2)
preparer2Then1 := GroupFixturePreparers(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)
}