命令行运行iphone模拟器以及单元测试

由于需要搭建持续集成CI平台,因此需要利用命令行进行编译和单元测试。
命令行编译倒是容易,xcodebuild即可。但是如果运行Unit test甚至启动模拟器运行应用程序,成了国内外同行的大问题,苹果还没有来得及开放或者根本不愿意开放命令行,所以只好自己摸索。环境为XCode4.2。工程名为Krowdit.

参考:
https://github.com/hborders/iphonesim/commit/27acdfdf6c900b0e9bbd061f45c904c1d18fd21d#commitcomment-484139
http://blog.carbonfive.com/2011/04/06/running-xcode-4-unit-tests-from-the-command-line/
http://longweekendmobile.com/2011/04/17/xcode4-running-application-tests-from-the-command-line-in-ios/

关于使用Jenkins CI,参见Jenkins CI 连接Mac 电脑失败

先说在命令行中运行单元测试。
在Xcode4中,单元测试其实是在模拟器运行的,而不是mac电脑的命令行上。
因此在Xcode图形界面里执行Test命令后,可以看到编译结果的最后一行信息说:

warning: Skipping tests; the iPhoneSimulator platform does not currently support application-hosted tests (TEST_HOST set).

即使你强行设置TEST_HOST也不行,因为苹果就是不让你用。

实际上,当编译结束时,xcodebuild已经在尝试通过执行${SYSTEM_DEVELOPER_DIR}/Tools/RunUnitTests 在本机命令行运行Unit Test, 该脚本又调用${SYSTEM_DEVELOPER_DIR}/Platforms/iPhoneSimulator.platform/Developer/Tools/RunPlatformUnitTests, 最后是${SYSTEM_DEVELOPER_DIR}/Tools/RunPlatformUnitTests.include

经过研究,上述的warning,只是苹果临时关闭了该功能,我们可以做些手脚来屏蔽它,让xcodebuild强制执行。
编辑/Developer/Platforms/iPhoneSimulator.platform/Developer/Tools/RunPlatformUnitTests文件:
找到95行,把

Warning ${LINENO} "Skipping tests; the iPhoneSimulator platform does not currently support application-hosted tests (TEST_HOST set)."

替换为

export OTHER_TEST_FLAGS="-RegisterForSystemEvents" RunTestsForApplication "${TEST_HOST}" "${TEST_BUNDLE_PATH}"

大功告成!

然后你就可以进入工程所在的路径,在命令行里面编译加执行单元测试了

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xcodebuild -alltargets -arch i386 -sdk iphonesimulator4.3 -configuration=Release

结果如下

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	=== BUILD NATIVE TARGET Krowdit OF PROJECT Krowdit WITH THE DEFAULT CONFIGURATION (Release) ===
Check dependencies


=== BUILD NATIVE TARGET KrowditTests OF PROJECT Krowdit WITH THE DEFAULT CONFIGURATION (Release) ===
Check dependencies
......
Test Suite 'All tests' finished at 2011-07-19 06:05:12 +0000.
Executed 16 tests, with 0 failures (0 unexpected) in 0.008 (0.013) seconds


/Developer/Tools/RunPlatformUnitTests.include:334: note: Passed tests for architecture 'i386' (GC OFF)

/Developer/Tools/RunPlatformUnitTests.include:345: note: Completed tests for architectures 'i386'

Touch build/Release-iphonesimulator/KrowditTests.octest
cd /tmp/jenkins/workspace/Krowdit-ios
setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/usr/bin/touch -c /tmp/jenkins/workspace/Krowdit-ios/build/Release-iphonesimulator/KrowditTests.octest


** BUILD SUCCEEDED **

提醒一下,记得把源代码文件(非单元测试代码)都加到Test Target中,否则在命令行编译时没有包括某些文件,会导致出ld链接错误(在Xcode图形界面中默认不需要这样做)

下面说运行从命令行中运行应用程序:
需要一个小工具iphonesim,从 https://github.com/hborders/iphonesim/ 下载后编译成为一个可执行文件,用它来启动iphone模拟器.
由于模拟器不支持多个实例,所以运行前记得先把模拟器给关掉。按照以下命令来执行吧!

iphonesim launch /Users/TadoSoft/Library/Application\ Support/iPhone\ Simulator/4.3.2/Applications/ED845558-5168-45C0-BA98-43AB3C238E9F/Krowdit.app/

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