All notable changes to this project will be documented in this file.
This project adheres to Semantic Versioning.
Replace assertThrownBy with assertThrows in documentation.
assertThrows is the correct method name of JUnit Jupiter's assertion for
exceptions. All examples use JUnit Jupiter for assertions.
Add methods for tapping System.err and System.out simultaneously.
The output of command-line applications is usually the output to the standard output stream and the error output stream intermixed. The new methods allow capturing the intermixed output.
@Test
void application_writes_text_to_System_err_and_out(
) throws Exception {
String text = tapSystemErrAndOut(() -> {
System.err.print("text from err");
System.out.print("text from out");
});
assertEquals("text from errtext from out", text);
}
@Test
void application_writes_mutliple_lines_to_System_err_and_out(
) throws Exception {
String text = tapSystemErrAndOutNormalized(() -> {
System.err.println("text from err");
System.out.println("text from out");
});
assertEquals("text from err\ntext from out\n", text);
}
Fix examples for tapping System.err and System.out.
Support Callable for withEnvironmentVariable.
This allows to write more precise and readable tests. The assertion can be
outside the withEnvironmentVariable statement and execute can be called with
a one-line Lambda expression. E.g.
@Test
void execute_code_with_environment_variables(
) throws Exception {
String value = withEnvironmentVariable("key", "the value")
.execute(() -> System.getenv("key"));
assertEquals("the value", value);
}
Initial release with the methods
- assertNothingWrittenToSystemErr
- assertNothingWrittenToSystemOut
- catchSystemExit
- muteSystemErr
- muteSystemOut
- restoreSystemProperties
- tapSystemErr
- tapSystemErrNormalized
- tapSystemOut
- tapSystemOutNormalized
- withEnvironmentVariable
- withSecurityManager
- withTextFromSystemIn