CommandLineIT Class — spring-boot Architecture

Source Code

cli/spring-boot-cli/src/intTest/java/org/springframework/boot/cli/CommandLineIT.java lines 37–86

class CommandLineIT {

	private CommandLineInvoker cli;

	@BeforeEach
	void setup(@TempDir File tempDir) {
		this.cli = new CommandLineInvoker(tempDir);
	}

	@Test
	void hintProducesListOfValidCommands() throws IOException, InterruptedException {
		Invocation cli = this.cli.invoke("hint");
		assertThat(cli.await()).isEqualTo(0);
		assertThat(cli.getErrorOutput()).isEmpty();
		assertThat(cli.getStandardOutputLines()).hasSize(5);
	}

	@Test
	void invokingWithNoArgumentsDisplaysHelp() throws IOException, InterruptedException {
		Invocation cli = this.cli.invoke();
		assertThat(cli.await()).isEqualTo(1);
		assertThat(cli.getErrorOutput()).isEmpty();
		assertThat(cli.getStandardOutput()).startsWith("usage:");
	}

	@Test
	void unrecognizedCommandsAreHandledGracefully() throws IOException, InterruptedException {
		Invocation cli = this.cli.invoke("not-a-real-command");
		assertThat(cli.await()).isEqualTo(1);
		assertThat(cli.getErrorOutput()).contains("'not-a-real-command' is not a valid command");
		assertThat(cli.getStandardOutput()).isEmpty();
	}

	@Test
	void version() throws IOException, InterruptedException {
		Invocation cli = this.cli.invoke("version");
		assertThat(cli.await()).isEqualTo(0);
		assertThat(cli.getErrorOutput()).isEmpty();
		assertThat(cli.getStandardOutput()).startsWith("Spring CLI v");
	}

	@Test
	void help() throws IOException, InterruptedException {
		Invocation cli = this.cli.invoke("help");
		assertThat(cli.await()).isEqualTo(1);
		assertThat(cli.getErrorOutput()).isEmpty();
		assertThat(cli.getStandardOutput()).startsWith("usage:");
	}

}