@Test
public void getDockerComposeVersionNullFactoryReturnsEmptyString() throws Exception {
DockerComposeVersionGetter dockerComposeVersionGetter =
new DockerComposeVersionGetter(new ProcessBuilderUtilities());
assertThat(dockerComposeVersionGetter.getDockerComposeVersion(null), is(""));
}
@Test
public void getDockerComposeVersionInvalidCommandReturnsEmptyString() throws Exception {
ProcessBuilderFactory factory = mock(ProcessBuilderFactory.class);
ProcessBuilderUtilities processBuilderUtilitiesMock = spy(ProcessBuilderUtilities.class);
when(factory.getProcessBuilder(Matchers.<String[]>anyVararg()))
.thenReturn(new ProcessBuilder("...."));
DockerComposeVersionGetter dockerComposeVersionGetter =
new DockerComposeVersionGetter(processBuilderUtilitiesMock);
assertThat(dockerComposeVersionGetter.getDockerComposeVersion(factory), is(""));
}
@Test
public void getDockerComposeVersionCallsProcessBuilderFactory() throws Exception {
ProcessBuilderFactory factory = mock(ProcessBuilderFactory.class);
ProcessBuilderUtilities processBuilderUtilitiesMock = spy(ProcessBuilderUtilities.class);
when(factory.getProcessBuilder(Matchers.<String[]>anyVararg()))
.thenReturn(new ProcessBuilder(""));
DockerComposeVersionGetter dockerComposeVersionGetter =
new DockerComposeVersionGetter(processBuilderUtilitiesMock);
dockerComposeVersionGetter.getDockerComposeVersion(factory);
verify(factory).getProcessBuilder(Matchers.<String[]>anyVararg());
}
@Test
public void getDockerComposeVersionCallsProcessBuilderUtilitiesLinux() throws Exception {
Assume.assumeTrue(System.getProperty("os.name").toLowerCase().startsWith("lin"));
ProcessBuilderFactory factoryMock = mock(ProcessBuilderFactory.class);
ProcessBuilderUtilities processBuilderUtilitiesMock = spy(ProcessBuilderUtilities.class);
when(factoryMock.getProcessBuilder(Matchers.<String[]>anyVararg()))
.thenReturn(new ProcessBuilder("ls"));
DockerComposeVersionGetter dockerComposeVersionGetter =
new DockerComposeVersionGetter(processBuilderUtilitiesMock);
dockerComposeVersionGetter.getDockerComposeVersion(factoryMock);
verify(processBuilderUtilitiesMock)
.attachStreamsToProcess(
any(Process.class), any(Writer.class), any(Writer.class), any(Reader.class));
}
