platform_build_soong/bp2build/conversion_test.go
Jingwen Chen 7385067640 bp2build: framework for generating BazelTargetModules.
This CL creates the framework necessary for generating
BazelTargetModules from regular Soong Android modules.
BazelTargetModules are code-generated into Bazel targets in BUILD files.

See the follow-up CL for examples of creating filegroup/genrule
BazelTargetModules.

Test: GENERATE_BAZEL_FILES=true m nothing # creates out/soong/bp2build
with no BUILD files, because there are no BazelTargetModules in the
module graph.

Change-Id: I33a96365bd439043b13af6db9e439592e9983188
2021-01-21 22:46:11 -05:00

107 lines
2.7 KiB
Go

// Copyright 2020 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 bp2build
import (
"sort"
"testing"
)
type filepath struct {
dir string
basename string
}
func assertFilecountsAreEqual(t *testing.T, actual []BazelFile, expected []filepath) {
if a, e := len(actual), len(expected); a != e {
t.Errorf("Expected %d files, got %d", e, a)
}
}
func assertFileContent(t *testing.T, actual []BazelFile, expected []filepath) {
for i := range actual {
if g, w := actual[i], expected[i]; g.Dir != w.dir || g.Basename != w.basename {
t.Errorf("Did not find expected file %s/%s", g.Dir, g.Basename)
} else if g.Basename == "BUILD" || g.Basename == "WORKSPACE" {
if g.Contents != "" {
t.Errorf("Expected %s to have no content.", g)
}
} else if g.Contents == "" {
t.Errorf("Contents of %s unexpected empty.", g)
}
}
}
func sortFiles(files []BazelFile) {
sort.Slice(files, func(i, j int) bool {
if dir1, dir2 := files[i].Dir, files[j].Dir; dir1 == dir2 {
return files[i].Basename < files[j].Basename
} else {
return dir1 < dir2
}
})
}
func TestCreateBazelFiles_QueryView_AddsTopLevelFiles(t *testing.T) {
files := CreateBazelFiles(map[string]RuleShim{}, map[string][]BazelTarget{}, false)
expectedFilePaths := []filepath{
{
dir: "",
basename: "BUILD",
},
{
dir: "",
basename: "WORKSPACE",
},
{
dir: bazelRulesSubDir,
basename: "BUILD",
},
{
dir: bazelRulesSubDir,
basename: "providers.bzl",
},
{
dir: bazelRulesSubDir,
basename: "soong_module.bzl",
},
}
assertFilecountsAreEqual(t, files, expectedFilePaths)
sortFiles(files)
assertFileContent(t, files, expectedFilePaths)
}
func TestCreateBazelFiles_Bp2Build_AddsTopLevelFiles(t *testing.T) {
files := CreateBazelFiles(map[string]RuleShim{}, map[string][]BazelTarget{}, true)
expectedFilePaths := []filepath{
{
dir: "",
basename: "BUILD",
},
{
dir: "",
basename: "WORKSPACE",
},
{
dir: bazelRulesSubDir,
basename: "BUILD",
},
}
assertFilecountsAreEqual(t, files, expectedFilePaths)
sortFiles(files)
assertFileContent(t, files, expectedFilePaths)
}