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// Copyright 2017 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 (
"errors"
"path/filepath"
"reflect"
"testing"
"github.com/google/blueprint"
)
func TestDependingOnModuleInSameNamespace(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
a := getModule(ctx, "a")
b := getModule(ctx, "b")
if !dependsOn(ctx, b, a) {
t.Errorf("module b does not depend on module a in the same namespace")
}
}
func TestDependingOnModuleInRootNamespace(t *testing.T) {
ctx := setupTest(t,
map[string]string{
".": `
test_module {
name: "b",
deps: ["a"],
}
test_module {
name: "a",
}
`,
},
)
a := getModule(ctx, "a")
b := getModule(ctx, "b")
if !dependsOn(ctx, b, a) {
t.Errorf("module b in root namespace does not depend on module a in the root namespace")
}
}
func TestImplicitlyImportRootNamespace(t *testing.T) {
_ = setupTest(t,
map[string]string{
".": `
test_module {
name: "a",
}
`,
"dir1": `
soong_namespace {
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
// setupTest will report any errors
}
func TestDependingOnBlueprintModuleInRootNamespace(t *testing.T) {
_ = setupTest(t,
map[string]string{
".": `
blueprint_test_module {
name: "a",
}
`,
"dir1": `
soong_namespace {
}
blueprint_test_module {
name: "b",
deps: ["a"],
}
`,
},
)
// setupTest will report any errors
}
func TestDependingOnModuleInImportedNamespace(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir2": `
soong_namespace {
imports: ["dir1"],
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
a := getModule(ctx, "a")
b := getModule(ctx, "b")
if !dependsOn(ctx, b, a) {
t.Errorf("module b does not depend on module a in the same namespace")
}
}
func TestDependingOnModuleInNonImportedNamespace(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir2": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir3": `
soong_namespace {
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
expectedErrors := []error{
errors.New(
`dir3/Android.bp:4:4: "b" depends on undefined module "a"
Module "b" is defined in namespace "dir3" which can read these 2 namespaces: ["dir3" "."]
Module "a" can be found in these namespaces: ["dir1" "dir2"]`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestDependingOnModuleByFullyQualifiedReference(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir2": `
soong_namespace {
}
test_module {
name: "b",
deps: ["//dir1:a"],
}
`,
},
)
a := getModule(ctx, "a")
b := getModule(ctx, "b")
if !dependsOn(ctx, b, a) {
t.Errorf("module b does not depend on module a")
}
}
func TestSameNameInTwoNamespaces(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
id: "1",
}
test_module {
name: "b",
deps: ["a"],
id: "2",
}
`,
"dir2": `
soong_namespace {
}
test_module {
name: "a",
id:"3",
}
test_module {
name: "b",
deps: ["a"],
id:"4",
}
`,
},
)
one := findModuleById(ctx, "1")
two := findModuleById(ctx, "2")
three := findModuleById(ctx, "3")
four := findModuleById(ctx, "4")
if !dependsOn(ctx, two, one) {
t.Fatalf("Module 2 does not depend on module 1 in its namespace")
}
if dependsOn(ctx, two, three) {
t.Fatalf("Module 2 depends on module 3 in another namespace")
}
if !dependsOn(ctx, four, three) {
t.Fatalf("Module 4 does not depend on module 3 in its namespace")
}
if dependsOn(ctx, four, one) {
t.Fatalf("Module 4 depends on module 1 in another namespace")
}
}
func TestSearchOrder(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
id: "1",
}
`,
"dir2": `
soong_namespace {
}
test_module {
name: "a",
id:"2",
}
test_module {
name: "b",
id:"3",
}
`,
"dir3": `
soong_namespace {
}
test_module {
name: "a",
id:"4",
}
test_module {
name: "b",
id:"5",
}
test_module {
name: "c",
id:"6",
}
`,
".": `
test_module {
name: "a",
id: "7",
}
test_module {
name: "b",
id: "8",
}
test_module {
name: "c",
id: "9",
}
test_module {
name: "d",
id: "10",
}
`,
"dir4": `
soong_namespace {
imports: ["dir1", "dir2", "dir3"]
}
test_module {
name: "test_me",
id:"0",
deps: ["a", "b", "c", "d"],
}
`,
},
)
testMe := findModuleById(ctx, "0")
if !dependsOn(ctx, testMe, findModuleById(ctx, "1")) {
t.Errorf("test_me doesn't depend on id 1")
}
if !dependsOn(ctx, testMe, findModuleById(ctx, "3")) {
t.Errorf("test_me doesn't depend on id 3")
}
if !dependsOn(ctx, testMe, findModuleById(ctx, "6")) {
t.Errorf("test_me doesn't depend on id 6")
}
if !dependsOn(ctx, testMe, findModuleById(ctx, "10")) {
t.Errorf("test_me doesn't depend on id 10")
}
if numDeps(ctx, testMe) != 4 {
t.Errorf("num dependencies of test_me = %v, not 4\n", numDeps(ctx, testMe))
}
}
func TestTwoNamespacesCanImportEachOther(t *testing.T) {
_ = setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
imports: ["dir2"]
}
test_module {
name: "a",
}
test_module {
name: "c",
deps: ["b"],
}
`,
"dir2": `
soong_namespace {
imports: ["dir1"],
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
// setupTest will report any errors
}
func TestImportingNonexistentNamespace(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
imports: ["a_nonexistent_namespace"]
}
test_module {
name: "a",
deps: ["a_nonexistent_module"]
}
`,
},
)
// should complain about the missing namespace and not complain about the unresolvable dependency
expectedErrors := []error{
errors.New(`dir1/Android.bp:2:4: module "soong_namespace": namespace a_nonexistent_namespace does not exist`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestNamespacesDontInheritParentNamespaces(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir1/subdir1": `
soong_namespace {
}
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
expectedErrors := []error{
errors.New(`dir1/subdir1/Android.bp:4:4: "b" depends on undefined module "a"
Module "b" is defined in namespace "dir1/subdir1" which can read these 2 namespaces: ["dir1/subdir1" "."]
Module "a" can be found in these namespaces: ["dir1"]`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestModulesDoReceiveParentNamespace(t *testing.T) {
_ = setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir1/subdir": `
test_module {
name: "b",
deps: ["a"],
}
`,
},
)
// setupTest will report any errors
}
func TestNamespaceImportsNotTransitive(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
}
`,
"dir2": `
soong_namespace {
imports: ["dir1"],
}
test_module {
name: "b",
deps: ["a"],
}
`,
"dir3": `
soong_namespace {
imports: ["dir2"],
}
test_module {
name: "c",
deps: ["a"],
}
`,
},
)
expectedErrors := []error{
errors.New(`dir3/Android.bp:5:4: "c" depends on undefined module "a"
Module "c" is defined in namespace "dir3" which can read these 3 namespaces: ["dir3" "dir2" "."]
Module "a" can be found in these namespaces: ["dir1"]`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestTwoNamepacesInSameDir(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
}
soong_namespace {
}
`,
},
)
expectedErrors := []error{
errors.New(`dir1/Android.bp:4:4: namespace dir1 already exists`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestNamespaceNotAtTopOfFile(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
test_module {
name: "a"
}
soong_namespace {
}
`,
},
)
expectedErrors := []error{
errors.New(`dir1/Android.bp:5:4: a namespace must be the first module in the file`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestTwoModulesWithSameNameInSameNamespace(t *testing.T) {
_, errs := setupTestExpectErrs(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a"
}
test_module {
name: "a"
}
`,
},
)
expectedErrors := []error{
errors.New(`dir1/Android.bp:7:4: module "a" already defined
dir1/Android.bp:4:4 <-- previous definition here`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
func TestDeclaringNamespaceInNonAndroidBpFile(t *testing.T) {
_, errs := setupTestFromFiles(t,
map[string][]byte{
"Android.bp": []byte(`
build = ["include.bp"]
`),
"include.bp": []byte(`
soong_namespace {
}
`),
},
)
expectedErrors := []error{
errors.New(`include.bp:2:5: A namespace may only be declared in a file named Android.bp`),
}
if len(errs) != 1 || errs[0].Error() != expectedErrors[0].Error() {
t.Errorf("Incorrect errors. Expected:\n%v\n, got:\n%v\n", expectedErrors, errs)
}
}
// so that the generated .ninja file will have consistent names
func TestConsistentNamespaceNames(t *testing.T) {
ctx := setupTest(t,
map[string]string{
"dir1": "soong_namespace{}",
"dir2": "soong_namespace{}",
"dir3": "soong_namespace{}",
})
ns1, _ := ctx.NameResolver.namespaceAt("dir1")
ns2, _ := ctx.NameResolver.namespaceAt("dir2")
ns3, _ := ctx.NameResolver.namespaceAt("dir3")
actualIds := []string{ns1.id, ns2.id, ns3.id}
expectedIds := []string{"1", "2", "3"}
if !reflect.DeepEqual(actualIds, expectedIds) {
t.Errorf("Incorrect namespace ids.\nactual: %s\nexpected: %s\n", actualIds, expectedIds)
}
}
// so that the generated .ninja file will have consistent names
func TestRename(t *testing.T) {
_ = setupTest(t,
map[string]string{
"dir1": `
soong_namespace {
}
test_module {
name: "a",
deps: ["c"],
}
test_module {
name: "b",
rename: "c",
}
`})
// setupTest will report any errors
}
// some utils to support the tests
func mockFiles(bps map[string]string) (files map[string][]byte) {
files = make(map[string][]byte, len(bps))
files["Android.bp"] = []byte("")
for dir, text := range bps {
files[filepath.Join(dir, "Android.bp")] = []byte(text)
}
return files
}
func setupTestFromFiles(t *testing.T, bps MockFS) (ctx *TestContext, errs []error) {
result := GroupFixturePreparers(
FixtureModifyContext(func(ctx *TestContext) {
ctx.RegisterModuleType("test_module", newTestModule)
ctx.RegisterModuleType("soong_namespace", NamespaceFactory)
ctx.Context.RegisterModuleType("blueprint_test_module", newBlueprintTestModule)
ctx.PreArchMutators(RegisterNamespaceMutator)
ctx.PreDepsMutators(func(ctx RegisterMutatorsContext) {
ctx.BottomUp("rename", renameMutator)
})
}),
bps.AddToFixture(),
).
// Ignore errors for now so tests can check them later.
ExtendWithErrorHandler(FixtureIgnoreErrors).
RunTest(t)
return result.TestContext, result.Errs
}
func setupTestExpectErrs(t *testing.T, bps map[string]string) (ctx *TestContext, errs []error) {
files := make(map[string][]byte, len(bps))
files["Android.bp"] = []byte("")
for dir, text := range bps {
files[filepath.Join(dir, "Android.bp")] = []byte(text)
}
return setupTestFromFiles(t, files)
}
func setupTest(t *testing.T, bps map[string]string) (ctx *TestContext) {
t.Helper()
ctx, errs := setupTestExpectErrs(t, bps)
FailIfErrored(t, errs)
return ctx
}
func dependsOn(ctx *TestContext, module TestingModule, possibleDependency TestingModule) bool {
depends := false
visit := func(dependency blueprint.Module) {
if dependency == possibleDependency.module {
depends = true
}
}
ctx.VisitDirectDeps(module.module, visit)
return depends
}
func numDeps(ctx *TestContext, module TestingModule) int {
count := 0
visit := func(dependency blueprint.Module) {
count++
}
ctx.VisitDirectDeps(module.module, visit)
return count
}
func getModule(ctx *TestContext, moduleName string) TestingModule {
return ctx.ModuleForTests(moduleName, "")
}
func findModuleById(ctx *TestContext, id string) (module TestingModule) {
visit := func(candidate blueprint.Module) {
testModule, ok := candidate.(*testModule)
if ok {
if testModule.properties.Id == id {
module = newTestingModule(ctx.config, testModule)
}
}
}
ctx.VisitAllModules(visit)
return module
}
type testModule struct {
ModuleBase
properties struct {
Rename string
Deps []string
Id string
}
}
func (m *testModule) DepsMutator(ctx BottomUpMutatorContext) {
if m.properties.Rename != "" {
ctx.Rename(m.properties.Rename)
}
for _, d := range m.properties.Deps {
ctx.AddDependency(ctx.Module(), nil, d)
}
}
func (m *testModule) GenerateAndroidBuildActions(ModuleContext) {
}
func renameMutator(ctx BottomUpMutatorContext) {
if m, ok := ctx.Module().(*testModule); ok {
if m.properties.Rename != "" {
ctx.Rename(m.properties.Rename)
}
}
}
func newTestModule() Module {
m := &testModule{}
m.AddProperties(&m.properties)
InitAndroidModule(m)
return m
}
type blueprintTestModule struct {
blueprint.SimpleName
properties struct {
Deps []string
}
}
func (b *blueprintTestModule) DynamicDependencies(ctx blueprint.DynamicDependerModuleContext) []string {
return b.properties.Deps
}
func (b *blueprintTestModule) GenerateBuildActions(blueprint.ModuleContext) {
}
func newBlueprintTestModule() (blueprint.Module, []interface{}) {
m := &blueprintTestModule{}
return m, []interface{}{&m.properties, &m.SimpleName.Properties}
}