python/python_test.go - android_build_soong - Gitiles

 // 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 python

 import (
 	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
 	"sort"
 	"strings"
 	"testing"

 	"android/soong/android"
 )

 type pyModule struct {
 	name          string
 	actualVersion string
 	pyRunfiles    []string
 	srcsZip       string
 	depsSrcsZips  []string
 }

 var (
 	buildNamePrefix          = "soong_python_test"
 	moduleVariantErrTemplate = "%s: module %q variant %q: "
 	pkgPathErrTemplate       = moduleVariantErrTemplate +
 		"pkg_path: %q must be a relative path contained in par file."
 	badIdentifierErrTemplate = moduleVariantErrTemplate +
 		"srcs: the path %q contains invalid token %q."
 	dupRunfileErrTemplate = moduleVariantErrTemplate +
 		"found two files to be placed at the same runfiles location %q." +
 		" First file: in module %s at path %q." +
 		" Second file: in module %s at path %q."
 	noSrcFileErr      = moduleVariantErrTemplate + "doesn't have any source files!"
 	badSrcFileExtErr  = moduleVariantErrTemplate + "srcs: found non (.py|.proto) file: %q!"
 	badDataFileExtErr = moduleVariantErrTemplate + "data: found (.py|.proto) file: %q!"
 	bpFile            = "Blueprints"

 	data = []struct {
 		desc      string
 		mockFiles map[string][]byte

 		errors           []string
 		expectedBinaries []pyModule
 	}{
 		{
 			desc: "module without any src files",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 					}`,
 				),
 			},
 			errors: []string{
 				fmt.Sprintf(noSrcFileErr,
 					"dir/Blueprints:1:1", "lib1", "PY3"),
 			},
 		},
 		{
 			desc: "module with bad src file ext",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 						srcs: [
 							"file1.exe",
 						],
 					}`,
 				),
 				"dir/file1.exe": nil,
 			},
 			errors: []string{
 				fmt.Sprintf(badSrcFileExtErr,
 					"dir/Blueprints:3:11", "lib1", "PY3", "dir/file1.exe"),
 			},
 		},
 		{
 			desc: "module with bad data file ext",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 						srcs: [
 							"file1.py",
 						],
 						data: [
 							"file2.py",
 						],
 					}`,
 				),
 				"dir/file1.py": nil,
 				"dir/file2.py": nil,
 			},
 			errors: []string{
 				fmt.Sprintf(badDataFileExtErr,
 					"dir/Blueprints:6:11", "lib1", "PY3", "dir/file2.py"),
 			},
 		},
 		{
 			desc: "module with bad pkg_path format",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 						pkg_path: "a/c/../../",
 						srcs: [
 							"file1.py",
 						],
 					}

 					python_library_host {
 						name: "lib2",
 						pkg_path: "a/c/../../../",
 						srcs: [
 							"file1.py",
 						],
 					}

 					python_library_host {
 						name: "lib3",
 						pkg_path: "/a/c/../../",
 						srcs: [
 							"file1.py",
 						],
 					}`,
 				),
 				"dir/file1.py": nil,
 			},
 			errors: []string{
 				fmt.Sprintf(pkgPathErrTemplate,
 					"dir/Blueprints:11:15", "lib2", "PY3", "a/c/../../../"),
 				fmt.Sprintf(pkgPathErrTemplate,
 					"dir/Blueprints:19:15", "lib3", "PY3", "/a/c/../../"),
 			},
 		},
 		{
 			desc: "module with bad runfile src path format",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 						pkg_path: "a/b/c/",
 						srcs: [
 							".file1.py",
 							"123/file1.py",
 							"-e/f/file1.py",
 						],
 					}`,
 				),
 				"dir/.file1.py":     nil,
 				"dir/123/file1.py":  nil,
 				"dir/-e/f/file1.py": nil,
 			},
 			errors: []string{
 				fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
 					"lib1", "PY3", "runfiles/a/b/c/-e/f/file1.py", "-e"),
 				fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
 					"lib1", "PY3", "runfiles/a/b/c/.file1.py", ".file1"),
 				fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
 					"lib1", "PY3", "runfiles/a/b/c/123/file1.py", "123"),
 			},
 		},
 		{
 			desc: "module with duplicate runfile path",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_library_host {
 						name: "lib1",
 						pkg_path: "a/b/",
 						srcs: [
 							"c/file1.py",
 						],
 					}

 					python_library_host {
 						name: "lib2",
 						pkg_path: "a/b/c/",
 						srcs: [
 							"file1.py",
 						],
 						libs: [
 							"lib1",
 						],
 					}
 					`,
 				),
 				"dir/c/file1.py": nil,
 				"dir/file1.py":   nil,
 			},
 			errors: []string{
 				fmt.Sprintf(dupRunfileErrTemplate, "dir/Blueprints:9:6",
 					"lib2", "PY3", "runfiles/a/b/c/file1.py", "lib2", "dir/file1.py",
 					"lib1", "dir/c/file1.py"),
 			},
 		},
 		{
 			desc: "module for testing dependencies",
 			mockFiles: map[string][]byte{
 				bpFile: []byte(`subdirs = ["dir"]`),
 				filepath.Join("dir", bpFile): []byte(
 					`python_defaults {
 						name: "default_lib",
 						srcs: [
 							"default.py",
 						],
 						version: {
 							py2: {
 								enabled: true,
 								srcs: [
 									"default_py2.py",
 								],
 							},
 							py3: {
 								enabled: false,
 								srcs: [
 									"default_py3.py",
 								],
 							},
 						},
 					}

 					python_library_host {
 						name: "lib5",
 						pkg_path: "a/b/",
 						srcs: [
 							"file1.py",
 						],
 						version: {
 							py2: {
 								enabled: true,
 							},
 							py3: {
 								enabled: true,
 							},
 						},
 					}

 					python_library_host {
 						name: "lib6",
 						pkg_path: "c/d/",
 						srcs: [
 							"file2.py",
 						],
 						libs: [
 							"lib5",
 						],
 					}

 					python_binary_host {
 						name: "bin",
 						defaults: ["default_lib"],
 						pkg_path: "e/",
 						srcs: [
 							"bin.py",
 						],
 						libs: [
 							"lib5",
 						],
 						version: {
 							py3: {
 								enabled: true,
 								srcs: [
 									"file4.py",
 								],
 								libs: [
 									"lib6",
 								],
 							},
 						},
 					}`,
 				),
 				filepath.Join("dir", "default.py"):     nil,
 				filepath.Join("dir", "default_py2.py"): nil,
 				filepath.Join("dir", "default_py3.py"): nil,
 				filepath.Join("dir", "file1.py"):       nil,
 				filepath.Join("dir", "file2.py"):       nil,
 				filepath.Join("dir", "bin.py"):         nil,
 				filepath.Join("dir", "file4.py"):       nil,
 				stubTemplateHost: []byte(`PYTHON_BINARY = '%interpreter%'
 				MAIN_FILE = '%main%'`),
 			},
 			expectedBinaries: []pyModule{
 				{
 					name:          "bin",
 					actualVersion: "PY3",
 					pyRunfiles: []string{
 						"runfiles/e/default.py",
 						"runfiles/e/bin.py",
 						"runfiles/e/default_py3.py",
 						"runfiles/e/file4.py",
 					},
 					srcsZip: "@prefix@/.intermediates/dir/bin/PY3/bin.py.srcszip",
 					depsSrcsZips: []string{
 						"@prefix@/.intermediates/dir/lib5/PY3/lib5.py.srcszip",
 						"@prefix@/.intermediates/dir/lib6/PY3/lib6.py.srcszip",
 					},
 				},
 			},
 		},
 	}
 )

 func TestPythonModule(t *testing.T) {
 	config, buildDir := setupBuildEnv(t)
 	defer tearDownBuildEnv(buildDir)
 	for _, d := range data {
 		t.Run(d.desc, func(t *testing.T) {
 			ctx := android.NewTestContext()
 			ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
 				ctx.BottomUp("version_split", versionSplitMutator()).Parallel()
 			})
 			ctx.RegisterModuleType("python_library_host",
 				android.ModuleFactoryAdaptor(PythonLibraryHostFactory))
 			ctx.RegisterModuleType("python_binary_host",
 				android.ModuleFactoryAdaptor(PythonBinaryHostFactory))
 			ctx.RegisterModuleType("python_defaults",
 				android.ModuleFactoryAdaptor(defaultsFactory))
 			ctx.PreArchMutators(android.RegisterDefaultsPreArchMutators)
 			ctx.Register()
 			ctx.MockFileSystem(d.mockFiles)
 			_, testErrs := ctx.ParseBlueprintsFiles(bpFile)
 			android.FailIfErrored(t, testErrs)
 			_, actErrs := ctx.PrepareBuildActions(config)
 			if len(actErrs) > 0 {
 				testErrs = append(testErrs, expectErrors(t, actErrs, d.errors)...)
 			} else {
 				for _, e := range d.expectedBinaries {
 					testErrs = append(testErrs,
 						expectModule(t, ctx, buildDir, e.name,
 							e.actualVersion,
 							e.srcsZip,
 							e.pyRunfiles,
 							e.depsSrcsZips)...)
 				}
 			}
 			android.FailIfErrored(t, testErrs)
 		})
 	}
 }

 func expectErrors(t *testing.T, actErrs []error, expErrs []string) (testErrs []error) {
 	actErrStrs := []string{}
 	for _, v := range actErrs {
 		actErrStrs = append(actErrStrs, v.Error())
 	}
 	sort.Strings(actErrStrs)
 	if len(actErrStrs) != len(expErrs) {
 		t.Errorf("got (%d) errors, expected (%d) errors!", len(actErrStrs), len(expErrs))
 		for _, v := range actErrStrs {
 			testErrs = append(testErrs, errors.New(v))
 		}
 	} else {
 		sort.Strings(expErrs)
 		for i, v := range actErrStrs {
 			if v != expErrs[i] {
 				testErrs = append(testErrs, errors.New(v))
 			}
 		}
 	}

 	return
 }

 func expectModule(t *testing.T, ctx *android.TestContext, buildDir, name, variant, expectedSrcsZip string,
 	expectedPyRunfiles, expectedDepsSrcsZips []string) (testErrs []error) {
 	module := ctx.ModuleForTests(name, variant)

 	base, baseOk := module.Module().(*Module)
 	if !baseOk {
 		t.Fatalf("%s is not Python module!", name)
 	}

 	actualPyRunfiles := []string{}
 	for _, path := range base.srcsPathMappings {
 		actualPyRunfiles = append(actualPyRunfiles, path.dest)
 	}

 	if !reflect.DeepEqual(actualPyRunfiles, expectedPyRunfiles) {
 		testErrs = append(testErrs, errors.New(fmt.Sprintf(
 			`binary "%s" variant "%s" has unexpected pyRunfiles: %q!`,
 			base.Name(),
 			base.properties.Actual_version,
 			actualPyRunfiles)))
 	}

 	if base.srcsZip.String() != strings.Replace(expectedSrcsZip, "@prefix@", buildDir, 1) {
 		testErrs = append(testErrs, errors.New(fmt.Sprintf(
 			`binary "%s" variant "%s" has unexpected srcsZip: %q!`,
 			base.Name(),
 			base.properties.Actual_version,
 			base.srcsZip)))
 	}

 	for i, _ := range expectedDepsSrcsZips {
 		expectedDepsSrcsZips[i] = strings.Replace(expectedDepsSrcsZips[i], "@prefix@", buildDir, 1)
 	}
 	if !reflect.DeepEqual(base.depsSrcsZips.Strings(), expectedDepsSrcsZips) {
 		testErrs = append(testErrs, errors.New(fmt.Sprintf(
 			`binary "%s" variant "%s" has unexpected depsSrcsZips: %q!`,
 			base.Name(),
 			base.properties.Actual_version,
 			base.depsSrcsZips)))
 	}

 	return
 }

 func setupBuildEnv(t *testing.T) (config android.Config, buildDir string) {
 	buildDir, err := ioutil.TempDir("", buildNamePrefix)
 	if err != nil {
 		t.Fatal(err)
 	}

 	config = android.TestConfig(buildDir, nil)

 	return
 }

 func tearDownBuildEnv(buildDir string) {
 	os.RemoveAll(buildDir)
 }
	// 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 python

	import (
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"path/filepath"
	"reflect"
	"sort"
	"strings"
	"testing"

	"android/soong/android"
	)

	type pyModule struct {
	name string
	actualVersion string
	pyRunfiles []string
	srcsZip string
	depsSrcsZips []string
	}

	var (
	buildNamePrefix = "soong_python_test"
	moduleVariantErrTemplate = "%s: module %q variant %q: "
	pkgPathErrTemplate = moduleVariantErrTemplate +
	"pkg_path: %q must be a relative path contained in par file."
	badIdentifierErrTemplate = moduleVariantErrTemplate +
	"srcs: the path %q contains invalid token %q."
	dupRunfileErrTemplate = moduleVariantErrTemplate +
	"found two files to be placed at the same runfiles location %q." +
	" First file: in module %s at path %q." +
	" Second file: in module %s at path %q."
	noSrcFileErr = moduleVariantErrTemplate + "doesn't have any source files!"
	badSrcFileExtErr = moduleVariantErrTemplate + "srcs: found non (.py\|.proto) file: %q!"
	badDataFileExtErr = moduleVariantErrTemplate + "data: found (.py\|.proto) file: %q!"
	bpFile = "Blueprints"

	data = []struct {
	desc string
	mockFiles map[string][]byte

	errors []string
	expectedBinaries []pyModule
	}{
	{
	desc: "module without any src files",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	}`,
	),
	},
	errors: []string{
	fmt.Sprintf(noSrcFileErr,
	"dir/Blueprints:1:1", "lib1", "PY3"),
	},
	},
	{
	desc: "module with bad src file ext",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	srcs: [
	"file1.exe",
	],
	}`,
	),
	"dir/file1.exe": nil,
	},
	errors: []string{
	fmt.Sprintf(badSrcFileExtErr,
	"dir/Blueprints:3:11", "lib1", "PY3", "dir/file1.exe"),
	},
	},
	{
	desc: "module with bad data file ext",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	srcs: [
	"file1.py",
	],
	data: [
	"file2.py",
	],
	}`,
	),
	"dir/file1.py": nil,
	"dir/file2.py": nil,
	},
	errors: []string{
	fmt.Sprintf(badDataFileExtErr,
	"dir/Blueprints:6:11", "lib1", "PY3", "dir/file2.py"),
	},
	},
	{
	desc: "module with bad pkg_path format",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	pkg_path: "a/c/../../",
	srcs: [
	"file1.py",
	],
	}

	python_library_host {
	name: "lib2",
	pkg_path: "a/c/../../../",
	srcs: [
	"file1.py",
	],
	}

	python_library_host {
	name: "lib3",
	pkg_path: "/a/c/../../",
	srcs: [
	"file1.py",
	],
	}`,
	),
	"dir/file1.py": nil,
	},
	errors: []string{
	fmt.Sprintf(pkgPathErrTemplate,
	"dir/Blueprints:11:15", "lib2", "PY3", "a/c/../../../"),
	fmt.Sprintf(pkgPathErrTemplate,
	"dir/Blueprints:19:15", "lib3", "PY3", "/a/c/../../"),
	},
	},
	{
	desc: "module with bad runfile src path format",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	pkg_path: "a/b/c/",
	srcs: [
	".file1.py",
	"123/file1.py",
	"-e/f/file1.py",
	],
	}`,
	),
	"dir/.file1.py": nil,
	"dir/123/file1.py": nil,
	"dir/-e/f/file1.py": nil,
	},
	errors: []string{
	fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
	"lib1", "PY3", "runfiles/a/b/c/-e/f/file1.py", "-e"),
	fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
	"lib1", "PY3", "runfiles/a/b/c/.file1.py", ".file1"),
	fmt.Sprintf(badIdentifierErrTemplate, "dir/Blueprints:4:11",
	"lib1", "PY3", "runfiles/a/b/c/123/file1.py", "123"),
	},
	},
	{
	desc: "module with duplicate runfile path",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_library_host {
	name: "lib1",
	pkg_path: "a/b/",
	srcs: [
	"c/file1.py",
	],
	}

	python_library_host {
	name: "lib2",
	pkg_path: "a/b/c/",
	srcs: [
	"file1.py",
	],
	libs: [
	"lib1",
	],
	}
	`,
	),
	"dir/c/file1.py": nil,
	"dir/file1.py": nil,
	},
	errors: []string{
	fmt.Sprintf(dupRunfileErrTemplate, "dir/Blueprints:9:6",
	"lib2", "PY3", "runfiles/a/b/c/file1.py", "lib2", "dir/file1.py",
	"lib1", "dir/c/file1.py"),
	},
	},
	{
	desc: "module for testing dependencies",
	mockFiles: map[string][]byte{
	bpFile: []byte(`subdirs = ["dir"]`),
	filepath.Join("dir", bpFile): []byte(
	`python_defaults {
	name: "default_lib",
	srcs: [
	"default.py",
	],
	version: {
	py2: {
	enabled: true,
	srcs: [
	"default_py2.py",
	],
	},
	py3: {
	enabled: false,
	srcs: [
	"default_py3.py",
	],
	},
	},
	}

	python_library_host {
	name: "lib5",
	pkg_path: "a/b/",
	srcs: [
	"file1.py",
	],
	version: {
	py2: {
	enabled: true,
	},
	py3: {
	enabled: true,
	},
	},
	}

	python_library_host {
	name: "lib6",
	pkg_path: "c/d/",
	srcs: [
	"file2.py",
	],
	libs: [
	"lib5",
	],
	}

	python_binary_host {
	name: "bin",
	defaults: ["default_lib"],
	pkg_path: "e/",
	srcs: [
	"bin.py",
	],
	libs: [
	"lib5",
	],
	version: {
	py3: {
	enabled: true,
	srcs: [
	"file4.py",
	],
	libs: [
	"lib6",
	],
	},
	},
	}`,
	),
	filepath.Join("dir", "default.py"): nil,
	filepath.Join("dir", "default_py2.py"): nil,
	filepath.Join("dir", "default_py3.py"): nil,
	filepath.Join("dir", "file1.py"): nil,
	filepath.Join("dir", "file2.py"): nil,
	filepath.Join("dir", "bin.py"): nil,
	filepath.Join("dir", "file4.py"): nil,
	stubTemplateHost: []byte(`PYTHON_BINARY = '%interpreter%'
	MAIN_FILE = '%main%'`),
	},
	expectedBinaries: []pyModule{
	{
	name: "bin",
	actualVersion: "PY3",
	pyRunfiles: []string{
	"runfiles/e/default.py",
	"runfiles/e/bin.py",
	"runfiles/e/default_py3.py",
	"runfiles/e/file4.py",
	},
	srcsZip: "@prefix@/.intermediates/dir/bin/PY3/bin.py.srcszip",
	depsSrcsZips: []string{
	"@prefix@/.intermediates/dir/lib5/PY3/lib5.py.srcszip",
	"@prefix@/.intermediates/dir/lib6/PY3/lib6.py.srcszip",
	},
	},
	},
	},
	}
	)

	func TestPythonModule(t *testing.T) {
	config, buildDir := setupBuildEnv(t)
	defer tearDownBuildEnv(buildDir)
	for _, d := range data {
	t.Run(d.desc, func(t *testing.T) {
	ctx := android.NewTestContext()
	ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
	ctx.BottomUp("version_split", versionSplitMutator()).Parallel()
	})
	ctx.RegisterModuleType("python_library_host",
	android.ModuleFactoryAdaptor(PythonLibraryHostFactory))
	ctx.RegisterModuleType("python_binary_host",
	android.ModuleFactoryAdaptor(PythonBinaryHostFactory))
	ctx.RegisterModuleType("python_defaults",
	android.ModuleFactoryAdaptor(defaultsFactory))
	ctx.PreArchMutators(android.RegisterDefaultsPreArchMutators)
	ctx.Register()
	ctx.MockFileSystem(d.mockFiles)
	_, testErrs := ctx.ParseBlueprintsFiles(bpFile)
	android.FailIfErrored(t, testErrs)
	_, actErrs := ctx.PrepareBuildActions(config)
	if len(actErrs) > 0 {
	testErrs = append(testErrs, expectErrors(t, actErrs, d.errors)...)
	} else {
	for _, e := range d.expectedBinaries {
	testErrs = append(testErrs,
	expectModule(t, ctx, buildDir, e.name,
	e.actualVersion,
	e.srcsZip,
	e.pyRunfiles,
	e.depsSrcsZips)...)
	}
	}
	android.FailIfErrored(t, testErrs)
	})
	}
	}

	func expectErrors(t *testing.T, actErrs []error, expErrs []string) (testErrs []error) {
	actErrStrs := []string{}
	for _, v := range actErrs {
	actErrStrs = append(actErrStrs, v.Error())
	}
	sort.Strings(actErrStrs)
	if len(actErrStrs) != len(expErrs) {
	t.Errorf("got (%d) errors, expected (%d) errors!", len(actErrStrs), len(expErrs))
	for _, v := range actErrStrs {
	testErrs = append(testErrs, errors.New(v))
	}
	} else {
	sort.Strings(expErrs)
	for i, v := range actErrStrs {
	if v != expErrs[i] {
	testErrs = append(testErrs, errors.New(v))
	}
	}
	}

	return
	}

	func expectModule(t testing.T, ctx android.TestContext, buildDir, name, variant, expectedSrcsZip string,
	expectedPyRunfiles, expectedDepsSrcsZips []string) (testErrs []error) {
	module := ctx.ModuleForTests(name, variant)

	base, baseOk := module.Module().(*Module)
	if !baseOk {
	t.Fatalf("%s is not Python module!", name)
	}

	actualPyRunfiles := []string{}
	for _, path := range base.srcsPathMappings {
	actualPyRunfiles = append(actualPyRunfiles, path.dest)
	}

	if !reflect.DeepEqual(actualPyRunfiles, expectedPyRunfiles) {
	testErrs = append(testErrs, errors.New(fmt.Sprintf(
	`binary "%s" variant "%s" has unexpected pyRunfiles: %q!`,
	base.Name(),
	base.properties.Actual_version,
	actualPyRunfiles)))
	}

	if base.srcsZip.String() != strings.Replace(expectedSrcsZip, "@prefix@", buildDir, 1) {
	testErrs = append(testErrs, errors.New(fmt.Sprintf(
	`binary "%s" variant "%s" has unexpected srcsZip: %q!`,
	base.Name(),
	base.properties.Actual_version,
	base.srcsZip)))
	}

	for i, _ := range expectedDepsSrcsZips {
	expectedDepsSrcsZips[i] = strings.Replace(expectedDepsSrcsZips[i], "@prefix@", buildDir, 1)
	}
	if !reflect.DeepEqual(base.depsSrcsZips.Strings(), expectedDepsSrcsZips) {
	testErrs = append(testErrs, errors.New(fmt.Sprintf(
	`binary "%s" variant "%s" has unexpected depsSrcsZips: %q!`,
	base.Name(),
	base.properties.Actual_version,
	base.depsSrcsZips)))
	}

	return
	}

	func setupBuildEnv(t *testing.T) (config android.Config, buildDir string) {
	buildDir, err := ioutil.TempDir("", buildNamePrefix)
	if err != nil {
	t.Fatal(err)
	}

	config = android.TestConfig(buildDir, nil)

	return
	}

	func tearDownBuildEnv(buildDir string) {
	os.RemoveAll(buildDir)
	}