상속: ISystemDependencyWithVersion
 public void SetUp()
 {
     var processRunner = new Mock<ProcessRunner>(new CommandLineProgram());
     processRunner.Setup(p => p.Run("node", "--version", false)).Returns(ValidNodeVersion);
     nodeJsSystemDependency = new NodeJsSystemDependency(processRunner.Object) { MinVersion = MinVersion };
 }
 public void SetUp()
 {
     var processRunner = new Mock<ProcessRunner>(new CommandLineProgram());
     processRunner.Setup(p => p.Run("node", "--version", false)).Throws<InvalidOperationException>();
     nodeJsSystemDependency = new NodeJsSystemDependency(processRunner.Object);
 }