mobile/bind/objc/seq_test.go

// Copyright 2015 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 objc

import (
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"runtime"
	"strings"
	"testing"
)

// Use the Xcode XCTestCase framework to run the regular tests and the special SeqBench.m benchmarks.
//
// Regular tests run in the xcodetest project as normal unit test (logic test in Xcode lingo).
// Unit tests execute faster but cannot run on a real device. The benchmarks in SeqBench.m run as
// UI unit tests.
//
// The Xcode files embedded in this file were constructed in Xcode 9 by:
//
// - Creating a new project through Xcode. Both unit tests and UI tests were checked off.
// - Xcode schemes are per-user by default. The shared scheme is created by selecting
//   Project => Schemes => Manage Schemes from the Xcode menu and selecting "Shared".
// - Remove files not needed for xcodebuild (determined empirically). In particular, the empty
//   tests Xcode creates can be removed and the unused user scheme.
//
// All tests here require the Xcode command line tools.

var destination = flag.String("device", "platform=iOS Simulator,name=iPhone 6s Plus", "Specify the -destination flag to xcodebuild")

var gomobileBin string

func TestMain(m *testing.M) {
	os.Exit(testMain(m))
}

func testMain(m *testing.M) int {
	binDir, err := ioutil.TempDir("", "bind-objc-test-")
	if err != nil {
		log.Fatal(err)
	}
	defer os.RemoveAll(binDir)

	exe := ""
	if runtime.GOOS == "windows" {
		exe = ".exe"
	}
	if runtime.GOOS != "android" {
		gocmd := filepath.Join(runtime.GOROOT(), "bin", "go")
		gomobileBin = filepath.Join(binDir, "gomobile"+exe)
		gobindBin := filepath.Join(binDir, "gobind"+exe)
		if out, err := exec.Command(gocmd, "build", "-o", gomobileBin, "golang.org/x/mobile/cmd/gomobile").CombinedOutput(); err != nil {
			log.Fatalf("gomobile build failed: %v: %s", err, out)
		}
		if out, err := exec.Command(gocmd, "build", "-o", gobindBin, "golang.org/x/mobile/cmd/gobind").CombinedOutput(); err != nil {
			log.Fatalf("gobind build failed: %v: %s", err, out)
		}
		path := binDir
		if oldPath := os.Getenv("PATH"); oldPath != "" {
			path += string(filepath.ListSeparator) + oldPath
		}
		os.Setenv("PATH", path)
	}

	return m.Run()
}

// TestObjcSeqTest runs ObjC test SeqTest.m.
func TestObjcSeqTest(t *testing.T) {
	runTest(t, []string{
		"golang.org/x/mobile/bind/testdata/testpkg",
		"golang.org/x/mobile/bind/testdata/testpkg/secondpkg",
		"golang.org/x/mobile/bind/testdata/testpkg/simplepkg",
	}, "", "SeqTest.m", "Testpkg.framework", false, false)
}

// TestObjcSeqBench runs ObjC test SeqBench.m.
func TestObjcSeqBench(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping benchmark in short mode.")
	}
	runTest(t, []string{"golang.org/x/mobile/bind/testdata/benchmark"}, "", "SeqBench.m", "Benchmark.framework", true, true)
}

// TestObjcSeqWrappers runs ObjC test SeqWrappers.m.
func TestObjcSeqWrappers(t *testing.T) {
	runTest(t, []string{"golang.org/x/mobile/bind/testdata/testpkg/objcpkg"}, "", "SeqWrappers.m", "Objcpkg.framework", false, false)
}

// TestObjcCustomPkg runs the ObjC test SeqCustom.m.
func TestObjcCustomPkg(t *testing.T) {
	runTest(t, []string{"golang.org/x/mobile/bind/testdata/testpkg"}, "Custom", "SeqCustom.m", "Testpkg.framework", false, false)
}

func runTest(t *testing.T, pkgNames []string, prefix, testfile, framework string, uitest, dumpOutput bool) {
	if gomobileBin == "" {
		t.Skipf("no gomobile on %s", runtime.GOOS)
	}
	if _, err := run("which xcodebuild"); err != nil {
		t.Skip("command xcodebuild not found, skipping")
	}

	tmpdir, err := ioutil.TempDir("", "bind-objc-seq-test-")
	if err != nil {
		t.Fatalf("failed to prepare temp dir: %v", err)
	}
	defer os.RemoveAll(tmpdir)
	t.Logf("tmpdir = %s", tmpdir)

	if err := createProject(tmpdir, testfile, framework); err != nil {
		t.Fatalf("failed to create project: %v", err)
	}

	if err := cp(filepath.Join(tmpdir, testfile), testfile); err != nil {
		t.Fatalf("failed to copy %s: %v", testfile, err)
	}

	cmd := exec.Command(gomobileBin, "bind", "-target", "ios", "-tags", "aaa bbb")
	if prefix != "" {
		cmd.Args = append(cmd.Args, "-prefix", prefix)
	}
	cmd.Args = append(cmd.Args, pkgNames...)
	cmd.Dir = filepath.Join(tmpdir, "xcodetest")
	// Reverse binding doesn't work with Go module since imports starting with Java or ObjC are not valid FQDNs.
	// Disable Go module explicitly until this problem is solved. See golang/go#27234.
	cmd.Env = append(os.Environ(), "GO111MODULE=off")
	buf, err := cmd.CombinedOutput()
	if err != nil {
		t.Logf("%s", buf)
		t.Fatalf("failed to run gomobile bind: %v", err)
	}

	testPattern := "xcodetestTests"
	if uitest {
		testPattern = "xcodetestUITests"
	}
	cmd = exec.Command("xcodebuild", "test", "-scheme", "xcodetest", "-destination", *destination, "-only-testing:"+testPattern)
	cmd.Dir = tmpdir
	buf, err = cmd.CombinedOutput()
	if err != nil {
		t.Logf("%s", buf)
		t.Errorf("failed to run xcodebuild: %v", err)
	}
	if dumpOutput {
		t.Logf("%s", buf)
	}
}

func run(cmd string) ([]byte, error) {
	c := strings.Split(cmd, " ")
	return exec.Command(c[0], c[1:]...).CombinedOutput()
}

func cp(dst, src string) error {
	r, err := os.Open(src)
	if err != nil {
		return fmt.Errorf("failed to read source: %v", err)
	}
	defer r.Close()
	w, err := os.Create(dst)
	if err != nil {
		return fmt.Errorf("failed to open destination: %v", err)
	}
	_, err = io.Copy(w, r)
	cerr := w.Close()
	if err != nil {
		return err
	}
	return cerr
}

// createProject generates the files required for xcodebuild test to run a
// Objective-C testfile with a gomobile bind framework.
func createProject(dir, testfile, framework string) error {
	for _, d := range []string{"xcodetest", "xcodetest.xcodeproj/xcshareddata/xcschemes", "xcodetestTests", "xcodetestUITests"} {
		if err := os.MkdirAll(filepath.Join(dir, d), 0700); err != nil {
			return err
		}
	}
	files := []struct {
		path    string
		content string
	}{
		{"xcodetest/Info.plist", infoPlist},
		{"xcodetest.xcodeproj/project.pbxproj", fmt.Sprintf(pbxproj, testfile, framework)},
		{"xcodetest.xcodeproj/xcshareddata/xcschemes/xcodetest.xcscheme", xcodescheme},
		{"xcodetestTests/Info.plist", testInfoPlist},
		// For UI tests. Only UI tests run on a real idevice.
		{"xcodetestUITests/Info.plist", testInfoPlist},
		{"xcodetest/AppDelegate.h", appdelegateh},
		{"xcodetest/main.m", mainm},
		{"xcodetest/AppDelegate.m", appdelegatem},
	}
	for _, f := range files {
		if err := ioutil.WriteFile(filepath.Join(dir, f.path), []byte(f.content), 0700); err != nil {
			return err
		}
	}
	return nil
}

const infoPlist = `<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleDevelopmentRegion</key>
	<string>en</string>
	<key>CFBundleExecutable</key>
	<string>$(EXECUTABLE_NAME)</string>
	<key>CFBundleIdentifier</key>
	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>$(PRODUCT_NAME)</string>
	<key>CFBundlePackageType</key>
	<string>APPL</string>
	<key>CFBundleShortVersionString</key>
	<string>1.0</string>
	<key>CFBundleSignature</key>
	<string>????</string>
	<key>CFBundleVersion</key>
	<string>1</string>
	<key>LSRequiresIPhoneOS</key>
	<true/>
	<key>UIRequiredDeviceCapabilities</key>
	<array>
		<string>armv7</string>
	</array>
	<key>UISupportedInterfaceOrientations</key>
	<array>
		<string>UIInterfaceOrientationPortrait</string>
		<string>UIInterfaceOrientationLandscapeLeft</string>
		<string>UIInterfaceOrientationLandscapeRight</string>
	</array>
	<key>UISupportedInterfaceOrientations~ipad</key>
	<array>
		<string>UIInterfaceOrientationPortrait</string>
		<string>UIInterfaceOrientationPortraitUpsideDown</string>
		<string>UIInterfaceOrientationLandscapeLeft</string>
		<string>UIInterfaceOrientationLandscapeRight</string>
	</array>
</dict>
</plist>`

const testInfoPlist = `<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleDevelopmentRegion</key>
	<string>en</string>
	<key>CFBundleExecutable</key>
	<string>$(EXECUTABLE_NAME)</string>
	<key>CFBundleIdentifier</key>
	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>$(PRODUCT_NAME)</string>
	<key>CFBundlePackageType</key>
	<string>BNDL</string>
	<key>CFBundleShortVersionString</key>
	<string>1.0</string>
	<key>CFBundleSignature</key>
	<string>????</string>
	<key>CFBundleVersion</key>
	<string>1</string>
</dict>
</plist>`

const pbxproj = `// !$*UTF8*$!
{
	archiveVersion = 1;
	classes = {
	};
	objectVersion = 50;
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			isa = PBXTargetDependency;
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				CLANG_ENABLE_OBJC_WEAK = YES;
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				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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				GCC_WARN_UNDECLARED_SELECTOR = YES;
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				CLANG_WARN_STRICT_PROTOTYPES = YES;
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				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
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				COPY_PHASE_STRIP = NO;
				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
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				LD_RUNPATH_SEARCH_PATHS = (
					"$(inherited)",
					"@executable_path/Frameworks",
				);
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				TARGETED_DEVICE_FAMILY = "1,2";
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			name = Debug;
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			buildSettings = {
				CODE_SIGN_STYLE = Automatic;
				FRAMEWORK_SEARCH_PATHS = (
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				INFOPLIST_FILE = xcodetest/Info.plist;
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					"@executable_path/Frameworks",
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			buildSettings = {
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					"$(PROJECT_DIR)/xcodetest",
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				PRODUCT_NAME = "$(TARGET_NAME)";
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					"$(PROJECT_DIR)/xcodetest",
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					"@executable_path/Frameworks",
					"@loader_path/Frameworks",
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				PRODUCT_NAME = "$(TARGET_NAME)";
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				TEST_TARGET_NAME = xcodetest;
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			name = Debug;
		};
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			isa = XCBuildConfiguration;
			buildSettings = {
				CODE_SIGN_STYLE = Automatic;
				FRAMEWORK_SEARCH_PATHS = (
					"$(inherited)",
					"$(PROJECT_DIR)/xcodetest",
				);
				INFOPLIST_FILE = xcodetestUITests/Info.plist;
				LD_RUNPATH_SEARCH_PATHS = (
					"$(inherited)",
					"@executable_path/Frameworks",
					"@loader_path/Frameworks",
				);
				PRODUCT_BUNDLE_IDENTIFIER = org.golang.xcodetestUITests;
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				TARGETED_DEVICE_FAMILY = "1,2";
				TEST_TARGET_NAME = xcodetest;
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			name = Release;
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			buildConfigurations = (
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			defaultConfigurationIsVisible = 0;
			defaultConfigurationName = Release;
		};
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			buildConfigurations = (
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			defaultConfigurationIsVisible = 0;
			defaultConfigurationName = Release;
		};
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			defaultConfigurationIsVisible = 0;
			defaultConfigurationName = Release;
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			buildConfigurations = (
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			defaultConfigurationIsVisible = 0;
			defaultConfigurationName = Release;
		};
/* End XCConfigurationList section */
	};
	rootObject = 642D05802094883B00FE587C /* Project object */;
}`

const xcodescheme = `<?xml version="1.0" encoding="UTF-8"?>
<Scheme
   LastUpgradeVersion = "0930"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
      buildImplicitDependencies = "YES">
      <BuildActionEntries>
         <BuildActionEntry
            buildForTesting = "YES"
            buildForRunning = "YES"
            buildForProfiling = "YES"
            buildForArchiving = "YES"
            buildForAnalyzing = "YES">
            <BuildableReference
               BuildableIdentifier = "primary"
               BlueprintIdentifier = "642D05872094883B00FE587C"
               BuildableName = "xcodetest.app"
               BlueprintName = "xcodetest"
               ReferencedContainer = "container:xcodetest.xcodeproj">
            </BuildableReference>
         </BuildActionEntry>
      </BuildActionEntries>
   </BuildAction>
   <TestAction
      buildConfiguration = "Debug"
      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
      shouldUseLaunchSchemeArgsEnv = "YES">
      <Testables>
         <TestableReference
            skipped = "NO">
            <BuildableReference
               BuildableIdentifier = "primary"
               BlueprintIdentifier = "642D059F2094883C00FE587C"
               BuildableName = "xcodetestTests.xctest"
               BlueprintName = "xcodetestTests"
               ReferencedContainer = "container:xcodetest.xcodeproj">
            </BuildableReference>
         </TestableReference>
         <TestableReference
            skipped = "NO">
            <BuildableReference
               BuildableIdentifier = "primary"
               BlueprintIdentifier = "642D05AA2094883C00FE587C"
               BuildableName = "xcodetestUITests.xctest"
               BlueprintName = "xcodetestUITests"
               ReferencedContainer = "container:xcodetest.xcodeproj">
            </BuildableReference>
         </TestableReference>
      </Testables>
      <MacroExpansion>
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "642D05872094883B00FE587C"
            BuildableName = "xcodetest.app"
            BlueprintName = "xcodetest"
            ReferencedContainer = "container:xcodetest.xcodeproj">
         </BuildableReference>
      </MacroExpansion>
      <AdditionalOptions>
      </AdditionalOptions>
   </TestAction>
   <LaunchAction
      buildConfiguration = "Debug"
      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
      launchStyle = "0"
      useCustomWorkingDirectory = "NO"
      ignoresPersistentStateOnLaunch = "NO"
      debugDocumentVersioning = "YES"
      debugServiceExtension = "internal"
      allowLocationSimulation = "YES">
      <BuildableProductRunnable
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "642D05872094883B00FE587C"
            BuildableName = "xcodetest.app"
            BlueprintName = "xcodetest"
            ReferencedContainer = "container:xcodetest.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
      <AdditionalOptions>
      </AdditionalOptions>
   </LaunchAction>
   <ProfileAction
      buildConfiguration = "Release"
      shouldUseLaunchSchemeArgsEnv = "YES"
      savedToolIdentifier = ""
      useCustomWorkingDirectory = "NO"
      debugDocumentVersioning = "YES">
      <BuildableProductRunnable
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "642D05872094883B00FE587C"
            BuildableName = "xcodetest.app"
            BlueprintName = "xcodetest"
            ReferencedContainer = "container:xcodetest.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
   </ProfileAction>
   <AnalyzeAction
      buildConfiguration = "Debug">
   </AnalyzeAction>
   <ArchiveAction
      buildConfiguration = "Release"
      revealArchiveInOrganizer = "YES">
   </ArchiveAction>
</Scheme>`

const appdelegateh = `#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end`

const appdelegatem = `#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application {
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
}

- (void)applicationWillTerminate:(UIApplication *)application {
}

@end`

const mainm = `#import <UIKit/UIKit.h>
#import "AppDelegate.h"

int main(int argc, char * argv[]) {
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
}`