@Test
void shouldReturnNormalCountZero() {

    Report issues = new Report();
    IssueBuilder builder = new IssueBuilder();
    issues.add(builder.setSeverity(Severity.WARNING_LOW).setCategory(KEY).build());
    PropertyStatistics statistics = new PropertyStatistics(issues, "category", Function.identity());
    long value = statistics.getNormalCount(KEY);
    assertThat(value).isEqualTo(0);
}