platform_build_soong/python/python_test.go
Colin Cross cec8171420 Add integration testing infrastructure
Fix mutator registration for tests to allow different tests
in the same package to register different mutators.

Allow tests to track the resulting ModuleBuildParams objects
to use in assertions, and provide helpers for getting them.
For example:
    config := android.TestConfig(buildDir)
    ctx := android.NewTestContext()
    ctx.RegisterModuleType(...)
    ctx.MockFileSystem(...)
    ctx.ParseBlueprintsFile("Android.bp")
    ctx.PrepareBuildActions(config)
    ctx.Register()
    // Get the Inputs value passed to the javac rule for the foo module
    inputs := ctx.ModuleForTests("foo".Rule("javac").Inputs

Test: java_test.go
Change-Id: I10c82967f5f3586d2c176f169906b571ed82fc73
2017-07-14 14:19:51 -07:00

443 lines
11 KiB
Go

// 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 pyBinary struct {
name string
actualVersion string
pyRunfiles []string
depsPyRunfiles []string
parSpec string
depsParSpecs []string
}
var (
buildNamePrefix = "soong_python_test"
moduleVariantErrTemplate = "%s: module %q variant %q: "
pkgPathErrTemplate = moduleVariantErrTemplate +
"pkg_path: %q is not a valid format."
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) file: %q!"
badDataFileExtErr = moduleVariantErrTemplate + "data: found (.py) file: %q!"
bpFile = "Blueprints"
data = []struct {
desc string
mockFiles map[string][]byte
errors []string
expectedBinaries []pyBinary
}{
{
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_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",
pkg_path: "e/",
srcs: [
"bin.py",
],
libs: [
"lib5",
],
version: {
py3: {
enabled: true,
srcs: [
"file4.py",
],
libs: [
"lib6",
],
},
},
}`,
),
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: []pyBinary{
{
name: "bin",
actualVersion: "PY3",
pyRunfiles: []string{
"runfiles/e/bin.py",
"runfiles/e/file4.py",
},
depsPyRunfiles: []string{
"runfiles/a/b/file1.py",
"runfiles/c/d/file2.py",
},
parSpec: "-P runfiles/e -C dir/ -l @prefix@/.intermediates/dir/bin/PY3/dir_.list",
depsParSpecs: []string{
"-P runfiles/a/b -C dir/ -l @prefix@/.intermediates/dir/lib5/PY3/dir_.list",
"-P runfiles/c/d -C dir/ -l @prefix@/.intermediates/dir/lib6/PY3/dir_.list",
},
},
},
},
}
)
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.Register()
ctx.MockFileSystem(d.mockFiles)
_, testErrs := ctx.ParseBlueprintsFiles(bpFile)
fail(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.pyRunfiles, e.depsPyRunfiles,
e.parSpec, e.depsParSpecs)...)
}
}
fail(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 string,
expPyRunfiles, expDepsPyRunfiles []string,
expParSpec string, expDepsParSpecs []string) (testErrs []error) {
module := ctx.ModuleForTests(name, variant)
base, baseOk := module.Module().(*pythonBaseModule)
if !baseOk {
t.Fatalf("%s is not Python module!", name)
}
sub, subOk := base.subModule.(*pythonBinaryBase)
if !subOk {
t.Fatalf("%s is not Python binary!", name)
}
actPyRunfiles := []string{}
for _, path := range base.srcsPathMappings {
actPyRunfiles = append(actPyRunfiles, path.dest)
}
if !reflect.DeepEqual(actPyRunfiles, expPyRunfiles) {
testErrs = append(testErrs, errors.New(fmt.Sprintf(
`binary "%s" variant "%s" has unexpected pyRunfiles: %q!`,
base.Name(),
base.properties.ActualVersion,
actPyRunfiles)))
}
if !reflect.DeepEqual(sub.depsPyRunfiles, expDepsPyRunfiles) {
testErrs = append(testErrs, errors.New(fmt.Sprintf(
`binary "%s" variant "%s" has unexpected depsPyRunfiles: %q!`,
base.Name(),
base.properties.ActualVersion,
sub.depsPyRunfiles)))
}
if base.parSpec.soongParArgs() != strings.Replace(expParSpec, "@prefix@", buildDir, 1) {
testErrs = append(testErrs, errors.New(fmt.Sprintf(
`binary "%s" variant "%s" has unexpected parSpec: %q!`,
base.Name(),
base.properties.ActualVersion,
base.parSpec.soongParArgs())))
}
actDepsParSpecs := []string{}
for i, p := range sub.depsParSpecs {
actDepsParSpecs = append(actDepsParSpecs, p.soongParArgs())
expDepsParSpecs[i] = strings.Replace(expDepsParSpecs[i], "@prefix@", buildDir, 1)
}
if !reflect.DeepEqual(actDepsParSpecs, expDepsParSpecs) {
testErrs = append(testErrs, errors.New(fmt.Sprintf(
`binary "%s" variant "%s" has unexpected depsParSpecs: %q!`,
base.Name(),
base.properties.ActualVersion,
actDepsParSpecs)))
}
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)
return
}
func tearDownBuildEnv(buildDir string) {
os.RemoveAll(buildDir)
}
func fail(t *testing.T, errs []error) {
if len(errs) > 0 {
for _, err := range errs {
t.Error(err)
}
t.FailNow()
}
}