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package hudson.plugins.analysis.test;

import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import hudson.plugins.analysis.core.AbstractHealthDescriptor;
import hudson.plugins.analysis.core.HealthDescriptor;
import hudson.plugins.analysis.core.Thresholds;

import org.junit.Test;

/**
 * Abstract test case for {@link AbstractHealthDescriptor}.
 *
 * @author Ulli Hafner
 */
public abstract class AbstractHealthDescriptorTest extends AbstractEnglishLocaleTest {
    /** Error message. */
    protected static final String WRONG_DESCRIPTION = "Wrong description";
    /** Error message. */
    private static final String WRONG_MINIMUM_ANNOTATIONS = "Wrong minimum annotations";
    /** Error message. */
    private static final String WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED = "Wrong value of isHealthyReportEnabled";
    /** Error message. */
    private static final String WRONG_VALUE_OF_IS_THRESHOLD_ENABLED = "Wrong value of isThresholdEnabled";

    /**
     * Tests the method {@link AbstractHealthDescriptor#isThresholdEnabled()}.
     */
    @Test
    public void testThresholds() {
        assertTrue(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor("0", "", "").isThresholdEnabled());
        assertTrue(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor("1", "", "").isThresholdEnabled());
        assertTrue(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor("100", "", "").isThresholdEnabled());

        assertFalse(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor("-1", "", "").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor("", "", "").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_THRESHOLD_ENABLED, createHealthDescriptor(null, "", "").isThresholdEnabled());
    }

    /**
     * Tests the method {@link AbstractHealthDescriptor#isThresholdEnabled()}.
     */
    @Test
    public void testHealthyThresholds() {
        assertTrue(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "0", "1").isHealthyReportEnabled());
        assertTrue(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "1", "2").isHealthyReportEnabled());
        assertTrue(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "10", "20").isHealthyReportEnabled());

        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "0", "0").isHealthyReportEnabled());
        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "1", "1").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "2", "1").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "2", "").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", "", "2").isThresholdEnabled());
        assertFalse(WRONG_VALUE_OF_IS_HEALTHY_REPORT_ENABLED, createHealthDescriptor("", null, "2").isThresholdEnabled());
    }

    /**
     * Tests the method {@link AbstractHealthDescriptor#getMinimumAnnotations}.
     */
    @Test
    public void testConversionOfThresholds() {
        assertEquals(WRONG_MINIMUM_ANNOTATIONS, 0, createHealthDescriptor("0", "", "").getLowerBoundOfThresholds());
        assertEquals(WRONG_MINIMUM_ANNOTATIONS, 1, createHealthDescriptor("1", "", "").getLowerBoundOfThresholds());
        assertEquals(WRONG_MINIMUM_ANNOTATIONS, 100, createHealthDescriptor("100", "", "").getLowerBoundOfThresholds());
    }


    /**
     * Tests the method {@link AbstractHealthDescriptor#getHealthyAnnotations()}
     * and {@link AbstractHealthDescriptor#getUnHealthyAnnotations()}.
     */
    @Test
    public void testConversionOfHealthiness() {
        assertEquals("Wrong healthy annotations", 1, createHealthDescriptor("0", "1", "2").getHealthyAnnotations());
        assertEquals("Wrong unhealthy annotations", 2, createHealthDescriptor("0", "1", "2").getUnHealthyAnnotations());
    }

    /**
     * Tests the method {@link AbstractHealthDescriptor#getHealthyAnnotations()}.
     */
    @Test(expected = IllegalArgumentException.class)
    public void verifyContractOfHealthy() {
        createHealthDescriptor("0", "-1", "0").getHealthyAnnotations();
    }

    /**
     * Tests the method {@link AbstractHealthDescriptor#getHealthyAnnotations()}.
     */
    @Test(expected = IllegalArgumentException.class)
    public void verifyContractOfUnHealthy() {
        createHealthDescriptor("0", "0", "-1").getUnHealthyAnnotations();
    }

    /**
     * Create a health descriptor mock that should be used as a basis for the
     * concrete {@link AbstractHealthDescriptor} sub type.
     *
     * @param threshold
     *            Annotations threshold to be reached if a build should be
     *            considered as unstable.
     * @param healthy
     *            Report health as 100% when the number of open tasks is less
     *            than this value
     * @param unHealthy
     *            Report health as 0% when the number of open tasks is greater
     *            than this value
     * @return the descriptor under test
     */
    private AbstractHealthDescriptor createHealthDescriptor(final String threshold, final String healthy, final String unHealthy) {
        HealthDescriptor healthDescriptor = mock(HealthDescriptor.class);
        Thresholds thresholds = new Thresholds();
        thresholds.unstableTotalAll = threshold;
        when(healthDescriptor.getThresholds()).thenReturn(thresholds);
        when(healthDescriptor.getHealthy()).thenReturn(healthy);
        when(healthDescriptor.getUnHealthy()).thenReturn(unHealthy);

        return createHealthDescriptor(healthDescriptor);
    }

    /**
     * Factory method to create the health descriptor under test.
     *
     * @param healthDescriptor
     *            the basis health descriptor mock
     * @return the descriptor under test
     */
    protected abstract AbstractHealthDescriptor createHealthDescriptor(HealthDescriptor healthDescriptor);
}