@Test
public void readFile_shouldReadAllLinesFromTheGivenFile() throws Exception {
assertThat(cut.readFile("src/test/java/.test"), is(testRawFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldThrowIllegalArgumentExceptionWhenFileDoesNotExist() throws Exception {
cut.readFile("not/a/real/.file");
}
@Test
public void readFile_shouldIgnoreLeadingAndTrailingWhitespaceInFilenameParameter()
throws Exception {
assertThat(cut.readFile(" src/test/java/.test "), is(testRawFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedAStringContainingOnlyWhitespace() throws Exception {
cut.readFile(" ");
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedAnEmptyString() throws Exception {
cut.readFile("");
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedNull() throws Exception {
cut.readFile(null);
}
