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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"os"
"path/filepath"
"testing"
)
func TestNdkRoot(t *testing.T) {
home, err := os.MkdirTemp("", "gomobile-test-")
if err != nil {
t.Fatal(err)
}
homeorig := os.Getenv("ANDROID_HOME")
os.Unsetenv("ANDROID_HOME")
ndkhomeorig := os.Getenv("ANDROID_NDK_HOME")
os.Unsetenv("ANDROID_NDK_HOME")
defer func() {
os.Setenv("ANDROID_HOME", homeorig)
os.Setenv("ANDROID_NDK_HOME", ndkhomeorig)
os.RemoveAll(home)
}()
makeMockNDK := func(path, version, platforms, abis string) string {
dir := filepath.Join(home, path)
if err := os.Mkdir(dir, 0755); err != nil {
t.Fatalf("couldn't mkdir %q", dir)
}
propertiesPath := filepath.Join(dir, "source.properties")
propertiesData := []byte("Pkg.Revision = " + version)
if err := os.WriteFile(propertiesPath, propertiesData, 0644); err != nil {
t.Fatalf("couldn't write source.properties: %v", err)
}
metaDir := filepath.Join(dir, "meta")
if err := os.Mkdir(metaDir, 0755); err != nil {
t.Fatalf("couldn't mkdir %q", metaDir)
}
platformsPath := filepath.Join(metaDir, "platforms.json")
platformsData := []byte(platforms)
if err := os.WriteFile(platformsPath, platformsData, 0644); err != nil {
t.Fatalf("couldn't write platforms.json: %v", err)
}
abisPath := filepath.Join(metaDir, "abis.json")
abisData := []byte(abis)
if err := os.WriteFile(abisPath, abisData, 0644); err != nil {
t.Fatalf("couldn't populate abis.json: %v", err)
}
return dir
}
t.Run("no NDK in the default location", func(t *testing.T) {
os.Setenv("ANDROID_HOME", home)
defer os.Unsetenv("ANDROID_HOME")
if ndk, err := ndkRoot(); err == nil {
t.Errorf("expected error but got %q", ndk)
}
})
t.Run("NDK location is set but is wrong", func(t *testing.T) {
os.Setenv("ANDROID_NDK_HOME", filepath.Join(home, "no-such-path"))
defer os.Unsetenv("ANDROID_NDK_HOME")
if ndk, err := ndkRoot(); err == nil {
t.Errorf("expected error but got %q", ndk)
}
})
t.Run("Two NDKs installed", func(t *testing.T) {
// Default path for pre-side-by-side NDKs.
sdkNDK := makeMockNDK("ndk-bundle", "fake-version", `{"min":16,"max":32}`, "{}")
defer os.RemoveAll(sdkNDK)
// Arbitrary location for testing ANDROID_NDK_HOME.
envNDK := makeMockNDK("custom-location", "fake-version", `{"min":16,"max":32}`, "{}")
// ANDROID_NDK_HOME is sufficient.
os.Setenv("ANDROID_NDK_HOME", envNDK)
if ndk, err := ndkRoot(); ndk != envNDK {
t.Errorf("got (%q, %v) want (%q, nil)", ndk, err, envNDK)
}
// ANDROID_NDK_HOME takes precedence over ANDROID_HOME.
os.Setenv("ANDROID_HOME", home)
if ndk, err := ndkRoot(); ndk != envNDK {
t.Errorf("got (%q, %v) want (%q, nil)", ndk, err, envNDK)
}
// ANDROID_NDK_HOME is respected even if there is no NDK there.
os.RemoveAll(envNDK)
if ndk, err := ndkRoot(); err == nil {
t.Errorf("expected error but got %q", ndk)
}
// ANDROID_HOME is used if ANDROID_NDK_HOME is not set.
os.Unsetenv("ANDROID_NDK_HOME")
if ndk, err := ndkRoot(); ndk != sdkNDK {
t.Errorf("got (%q, %v) want (%q, nil)", ndk, err, envNDK)
}
})
t.Run("Modern 'side-by-side' NDK selection", func(t *testing.T) {
defer func() {
buildAndroidAPI = minAndroidAPI
}()
ndkForest := filepath.Join(home, "ndk")
if err := os.Mkdir(ndkForest, 0755); err != nil {
t.Fatalf("couldn't mkdir %q", ndkForest)
}
path := filepath.Join("ndk", "newer")
platforms := `{"min":19,"max":32}`
abis := `{"arm64-v8a": {}, "armeabi-v7a": {}, "x86_64": {}}`
version := "17.2.0"
newerNDK := makeMockNDK(path, version, platforms, abis)
path = filepath.Join("ndk", "older")
platforms = `{"min":16,"max":31}`
abis = `{"arm64-v8a": {}, "armeabi-v7a": {}, "x86": {}}`
version = "17.1.0"
olderNDK := makeMockNDK(path, version, platforms, abis)
testCases := []struct {
api int
targets []targetInfo
wantNDKRoot string
}{
{15, nil, ""},
{16, nil, olderNDK},
{16, []targetInfo{{"android", "arm"}}, olderNDK},
{16, []targetInfo{{"android", "arm"}, {"android", "arm64"}}, olderNDK},
{16, []targetInfo{{"android", "x86_64"}}, ""},
{19, nil, newerNDK},
{19, []targetInfo{{"android", "arm"}}, newerNDK},
{19, []targetInfo{{"android", "arm"}, {"android", "arm64"}, {"android", "386"}}, olderNDK},
{32, nil, newerNDK},
{32, []targetInfo{{"android", "arm"}}, newerNDK},
{32, []targetInfo{{"android", "386"}}, ""},
}
for i, tc := range testCases {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
buildAndroidAPI = tc.api
ndk, err := ndkRoot(tc.targets...)
if len(tc.wantNDKRoot) != 0 {
if ndk != tc.wantNDKRoot || err != nil {
t.Errorf("got (%q, %v), want (%q, nil)", ndk, err, tc.wantNDKRoot)
}
} else if err == nil {
t.Error("expected error")
}
})
}
})
}
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