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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 (
"fmt"
"path/filepath"
"strings"
"github.com/google/blueprint"
)
func NewTestContext() *TestContext {
ctx := &TestContext{
Context: blueprint.NewContext(),
}
namespaceExportFilter := func(namespace *Namespace) bool {
return true
}
ctx.SetNameInterface(NewNameResolver(namespaceExportFilter))
return ctx
}
func NewTestArchContext() *TestContext {
ctx := NewTestContext()
ctx.preDeps = append(ctx.preDeps, registerArchMutator)
return ctx
}
type TestContext struct {
*blueprint.Context
preArch, preDeps, postDeps []RegisterMutatorFunc
}
func (ctx *TestContext) PreArchMutators(f RegisterMutatorFunc) {
ctx.preArch = append(ctx.preArch, f)
}
func (ctx *TestContext) PreDepsMutators(f RegisterMutatorFunc) {
ctx.preDeps = append(ctx.preDeps, f)
}
func (ctx *TestContext) PostDepsMutators(f RegisterMutatorFunc) {
ctx.postDeps = append(ctx.postDeps, f)
}
func (ctx *TestContext) Register() {
registerMutators(ctx.Context, ctx.preArch, ctx.preDeps, ctx.postDeps)
ctx.RegisterSingletonType("env", SingletonFactoryAdaptor(EnvSingleton))
}
func (ctx *TestContext) ModuleForTests(name, variant string) TestingModule {
var module Module
ctx.VisitAllModules(func(m blueprint.Module) {
if ctx.ModuleName(m) == name && ctx.ModuleSubDir(m) == variant {
module = m.(Module)
}
})
if module == nil {
// find all the modules that do exist
allModuleNames := []string{}
ctx.VisitAllModules(func(m blueprint.Module) {
allModuleNames = append(allModuleNames, m.(Module).Name()+"("+ctx.ModuleSubDir(m)+")")
})
panic(fmt.Errorf("failed to find module %q variant %q."+
"\nall modules: %v", name, variant, allModuleNames))
}
return TestingModule{module}
}
// MockFileSystem causes the Context to replace all reads with accesses to the provided map of
// filenames to contents stored as a byte slice.
func (ctx *TestContext) MockFileSystem(files map[string][]byte) {
// no module list file specified; find every file named Blueprints or Android.bp
pathsToParse := []string{}
for candidate := range files {
base := filepath.Base(candidate)
if base == "Blueprints" || base == "Android.bp" {
pathsToParse = append(pathsToParse, candidate)
}
}
if len(pathsToParse) < 1 {
panic(fmt.Sprintf("No Blueprint or Android.bp files found in mock filesystem: %v\n", files))
}
files[blueprint.MockModuleListFile] = []byte(strings.Join(pathsToParse, "\n"))
ctx.Context.MockFileSystem(files)
}
type TestingModule struct {
module Module
}
func (m TestingModule) Module() Module {
return m.module
}
func (m TestingModule) Rule(rule string) BuildParams {
for _, p := range m.module.BuildParamsForTests() {
if strings.Contains(p.Rule.String(), rule) {
return p
}
}
panic(fmt.Errorf("couldn't find rule %q", rule))
}
func (m TestingModule) Description(desc string) BuildParams {
for _, p := range m.module.BuildParamsForTests() {
if p.Description == desc {
return p
}
}
panic(fmt.Errorf("couldn't find description %q", desc))
}
func (m TestingModule) Output(file string) BuildParams {
for _, p := range m.module.BuildParamsForTests() {
outputs := append(WritablePaths(nil), p.Outputs...)
if p.Output != nil {
outputs = append(outputs, p.Output)
}
for _, f := range outputs {
if f.String() == file || f.Rel() == file {
return p
}
}
}
panic(fmt.Errorf("couldn't find output %q", file))
}
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