小编U-L*_*U-L的帖子

在mac osx上新的docker.我正在从基本的phusion图像构建一个ubuntu图像,以用作git服务器.使用以下文件安装基础和所需的软件.这非常有效.但是,我无法ping通机器.

编辑

我无法ping通机器.我可以运行图像并在ps命令中查看容器.我也可以抨击它.

CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS              PORTS               NAMES
54e4cef78445        git-ssh_img         "/usr/sbin/sshd -D"   44 minutes ago      Up 44 minutes       22/tcp              git-ssh

以下也有效

docker exec -it 54e4cef78445 ping www.google.com
PING www.google.com (173.194.219.147) 56(84) bytes of data.
64 bytes from ya-in-f147.1e100.net (173.194.219.147): icmp_seq=1 ttl=61 time=65.1 ms
64 bytes from ya-in-f147.1e100.net (173.194.219.147): icmp_seq=2 ttl=61 time=67.1 ms

Dockerfile:

# Use phusion/baseimage as base image. To make your builds reproducible, make
# sure you lock down to a specific version, not to …

我在roboelectric 2.2中遇到以下错误

java.lang.IncompatibleClassChangeError: class org.objectweb.asm.tree.ClassNode has interface org.objectweb.asm.ClassVisitor as super class
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.robolectric.RobolectricTestRunner.createRobolectricClassLoader(RobolectricTestRunner.java:144)
    at org.robolectric.RobolectricTestRunner.createSdkEnvironment(RobolectricTestRunner.java:116)
    at org.robolectric.RobolectricTestRunner$3.create(RobolectricTestRunner.java:279)
    at org.robolectric.EnvHolder.getSdkEnvironment(EnvHolder.java:21)
    at org.robolectric.RobolectricTestRunner.getEnvironment(RobolectricTestRunner.java:277)
    at org.robolectric.RobolectricTestRunner.access$100(RobolectricTestRunner.java:57)
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:188)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:175)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at …

在css中，margin-left的默认值为0。我知道，因为它是0，所以不需要任何单位。无论是em还是px，都没有关系。但我继承了公司的代码，其中规定：

左边距：10；

我猜这意味着默认情况下 10px ？我想我可以尝试 em 和 px 看看哪个看起来更好。

我正在使用XCtest来测试视图的标题.试着养成先写测试的习惯.设置看起来像

- (void)setUp
{
    [super setUp];
    self.appDelegate = [[UIApplication sharedApplication] delegate];
    self.tipViewController = self.appDelegate.tipViewController;
    self.tipView = self.tipViewController.view;

    self.settingsViewController = self.appDelegate.settingsViewController;
    self.settingsView = self.settingsViewController.view;
}

问题是"settingsViewController".我有两个实际测试功能:

- (void) testTitleOfMainView{
    XCTAssertTrue([self.tipViewController.title isEqualToString:@"Tip Calculator"], @"The title should be Tip Calculator");
    //why does this not work?
    //    XCTAssertEqual(self.tipViewController.title, @"Tip Calculator", @"The title should be Tip Calculator");
}

- (void) testTitleOfSettingsView{
    //make the setttings view visible
    [self.tipViewController onSettingsButton];

    //test the title
    XCTAssertTrue([self.settingsViewController.title  isEqualToString:@"Settings"], @"The title should be Settings");
}

"testTitleOfMainView"有效.但是"testTitleOfSettingsView失败,因为self.settingsViewController是nil.我可以理解为什么.视图还没有初始化.所以我尝试将消息发送到主控制器,使settignscontroller在视图中

[self.tipViewController onSettingsButton];

settingsController仍为零.我应该使用嘲笑吗？有人建议我用另一个问题 xctest - …