FileSystemStopwordsTest.java

public class FileSystemStopwordsTest {

    private static final String STOPWORDS_FILE_PATH = "stopwords.txt";
    private TestFileSystemStopwords stopwordsFile = new TestFileSystemStopwords(STOPWORDS_FILE_PATH);
    private Stopwords fileSystemStopwords = new FileSystemStopwords(STOPWORDS_FILE_PATH);

    @Test
    public void stopwordsReturnsStopwordsFromFile() {
        stopwordsFile.addStopword("stopword");
        Collection<String> words = fileSystemStopwords.stopwords();
        assertThat("stopwords", words.size(), is(1));
    }
    @Test
    public void stopwordsReturnsEmptyStopwordsIfFilePathIsWrong() {
        FileSystemStopwords stopwords = new FileSystemStopwords(STOPWORDS_FILE_PATH + "invalid");
        Collection<String> words = stopwords.stopwords();
        assertThat("stopwords", words.size(), is(0));
    }

    @Test
    public void stopwordsReturnsEmptyStopwordsIfFileIsLocked() {
        stopwordsFile.addStopword("stopword");
        stopwordsFile.lockFile();
        Collection<String> words = fileSystemStopwords.stopwords();
        assertThat("stopwords", words.size(), is(0));
    }

    @After
    public void cleanup() {
        stopwordsFile.reset();
    }

}