com.github.karsaig.approvalcrest.matcher.AbstractDiagnosingMatcher Maven / Gradle / Ivy

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package com.github.karsaig.approvalcrest.matcher;

import org.hamcrest.Description;
import org.hamcrest.DiagnosingMatcher;

import com.github.karsaig.approvalcrest.ComparisonDescription;

public abstract class AbstractDiagnosingMatcher extends DiagnosingMatcher {

    private boolean comparisonDescriptionNeeded = false;

    protected boolean appendMismatchDescription(Description mismatchDescription, String expected, String actual, String message) {
        if (comparisonDescriptionNeeded && ComparisonDescription.class.isInstance(mismatchDescription)) {
            ComparisonDescription shazamMismatchDescription = (ComparisonDescription) mismatchDescription;
            shazamMismatchDescription.setComparisonFailure(true);
            shazamMismatchDescription.setExpected(expected);
            shazamMismatchDescription.setActual(actual);
            shazamMismatchDescription.setDifferencesMessage(message);
        }
        mismatchDescription.appendText(message);
        return false;
    }

    protected void setComparisonDescriptionNeeded(boolean comparisonDescriptionNeeded) {
        this.comparisonDescriptionNeeded = comparisonDescriptionNeeded;
    }

    protected boolean isComparisonDescriptionNeeded() {
        return comparisonDescriptionNeeded;
    }
}