DockerConnectionExceptionTests Class — spring-boot Architecture

Source Code

buildpack/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/transport/DockerConnectionExceptionTests.java lines 31–64

class DockerConnectionExceptionTests {

	private static final String HOST = "docker://localhost/";

	@Test
	@SuppressWarnings("NullAway") // Test null check
	void createWhenHostIsNullThrowsException() {
		assertThatIllegalArgumentException().isThrownBy(() -> new DockerConnectionException(null, null))
			.withMessage("'host' must not be null");
	}

	@Test
	@SuppressWarnings("NullAway") // Test null check
	void createWhenCauseIsNullThrowsException() {
		assertThatIllegalArgumentException().isThrownBy(() -> new DockerConnectionException(HOST, null))
			.withMessage("'cause' must not be null");
	}

	@Test
	void createWithIOException() {
		DockerConnectionException exception = new DockerConnectionException(HOST, new IOException("error"));
		assertThat(exception.getMessage())
			.contains("Connection to the Docker daemon at 'docker://localhost/' failed with error \"error\"");
	}

	@Test
	void createWithLastErrorException() {
		DockerConnectionException exception = new DockerConnectionException(HOST,
				new IOException(new com.sun.jna.LastErrorException("root cause")));
		assertThat(exception.getMessage())
			.contains("Connection to the Docker daemon at 'docker://localhost/' failed with error \"root cause\"");
	}

}