import org.junit.jupiter.api.Disabled; import org.junit.jupiter.api.DisplayName; import org.junit.jupiter.api.Test; import java.util.Arrays; import java.util.Collections; import java.util.List; import static org.assertj.core.api.Assertions.assertThat; import static org.assertj.core.api.Assertions.assertThatExceptionOfType; public class SeriesTest { @Test @DisplayName("slices of one from one") public void slicesOfOneFromOne() { Series series = new Series("1"); List expected = Collections.singletonList("1"); List actual = series.slices(1); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slices of one from two") public void slicesOfOneFromTwo() { Series series = new Series("12"); List expected = Arrays.asList("1", "2"); List actual = series.slices(1); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slices of two") public void slicesOfTwo() { Series series = new Series("35"); List expected = Collections.singletonList("35"); List actual = series.slices(2); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slices of two overlap") public void slicesOfTwoOverlap() { Series series = new Series("9142"); List expected = Arrays.asList("91", "14", "42"); List actual = series.slices(2); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slices can include duplicates") public void slicesIncludeDuplicates() { Series series = new Series("777777"); List expected = Arrays.asList( "777", "777", "777", "777" ); List actual = series.slices(3); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slices of a long series") public void slicesOfLongSeries() { Series series = new Series("918493904243"); List expected = Arrays.asList( "91849", "18493", "84939", "49390", "93904", "39042", "90424", "04243" ); List actual = series.slices(5); assertThat(actual).isEqualTo(expected); } @Disabled("Remove to run test") @Test @DisplayName("slice length is too large") public void sliceLengthIsToolarge() { Series series = new Series("12345"); assertThatExceptionOfType(IllegalArgumentException.class) .isThrownBy(() -> series.slices(6)) .withMessage("slice length cannot be greater than series length"); } @Disabled("Remove to run test") @Test @DisplayName("slice length is way too large") public void sliceLengthIsWayToolarge() { Series series = new Series("12345"); assertThatExceptionOfType(IllegalArgumentException.class) .isThrownBy(() -> series.slices(42)) .withMessage("slice length cannot be greater than series length"); } @Disabled("Remove to run test") @Test @DisplayName("slice length cannot be zero") public void sliceLengthZero() { Series series = new Series("12345"); assertThatExceptionOfType(IllegalArgumentException.class) .isThrownBy(() -> series.slices(0)) .withMessage("slice length cannot be negative or zero"); } @Disabled("Remove to run test") @Test @DisplayName("slice length cannot be negative") public void sliceLengthNegative() { Series series = new Series("123"); assertThatExceptionOfType(IllegalArgumentException.class) .isThrownBy(() -> series.slices(-1)) .withMessage("slice length cannot be negative or zero"); } @Disabled("Remove to run test") @Test @DisplayName("empty series is invalid") public void emptySeries() { assertThatExceptionOfType(IllegalArgumentException.class) .isThrownBy(() -> new Series("")) .withMessage("series cannot be empty"); } }