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Use backported JUnit exceptThrows and assertThrows in metrics library
------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=176584707
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17 changed files with 325 additions and 226 deletions
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@ -15,57 +15,49 @@
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package google.registry.monitoring.metrics;
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import static com.google.common.truth.Truth.assertThat;
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import static google.registry.monitoring.metrics.JUnitBackports.expectThrows;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.ExpectedException;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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/** Unit tests for {@link ExponentialFitter}. */
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@RunWith(JUnit4.class)
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public class ExponentialFitterTest {
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@Rule public final ExpectedException thrown = ExpectedException.none();
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@Test
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public void testCreateExponentialFitter_zeroNumIntervals_throwsException() throws Exception {
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thrown.expect(IllegalArgumentException.class);
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thrown.expectMessage("numFiniteIntervals must be greater than 0");
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ExponentialFitter.create(0, 3.0, 1.0);
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IllegalArgumentException thrown =
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expectThrows(IllegalArgumentException.class, () -> ExponentialFitter.create(0, 3.0, 1.0));
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assertThat(thrown).hasMessageThat().contains("numFiniteIntervals must be greater than 0");
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}
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@Test
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public void testCreateExponentialFitter_negativeNumIntervals_throwsException() throws Exception {
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thrown.expect(IllegalArgumentException.class);
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thrown.expectMessage("numFiniteIntervals must be greater than 0");
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ExponentialFitter.create(-1, 3.0, 1.0);
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IllegalArgumentException thrown =
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expectThrows(IllegalArgumentException.class, () -> ExponentialFitter.create(-1, 3.0, 1.0));
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assertThat(thrown).hasMessageThat().contains("numFiniteIntervals must be greater than 0");
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}
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@Test
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public void testCreateExponentialFitter_invalidBase_throwsException() throws Exception {
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thrown.expect(IllegalArgumentException.class);
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thrown.expectMessage("base must be greater than 1");
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ExponentialFitter.create(3, 0.5, 1.0);
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IllegalArgumentException thrown =
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expectThrows(IllegalArgumentException.class, () -> ExponentialFitter.create(3, 0.5, 1.0));
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assertThat(thrown).hasMessageThat().contains("base must be greater than 1");
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}
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@Test
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public void testCreateExponentialFitter_zeroScale_throwsException() throws Exception {
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thrown.expect(IllegalArgumentException.class);
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thrown.expectMessage("scale must not be 0");
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ExponentialFitter.create(3, 2.0, 0.0);
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IllegalArgumentException thrown =
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expectThrows(IllegalArgumentException.class, () -> ExponentialFitter.create(3, 2.0, 0.0));
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assertThat(thrown).hasMessageThat().contains("scale must not be 0");
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}
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@Test
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public void testCreateExponentialFitter_NanScale_throwsException() throws Exception {
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thrown.expect(IllegalArgumentException.class);
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thrown.expectMessage("value must be finite, not NaN, and not -0.0");
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ExponentialFitter.create(3, 2.0, Double.NaN);
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IllegalArgumentException thrown =
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expectThrows(
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IllegalArgumentException.class, () -> ExponentialFitter.create(3, 2.0, Double.NaN));
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assertThat(thrown).hasMessageThat().contains("value must be finite, not NaN, and not -0.0");
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}
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@Test
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