JUnit 4.13.2 Source Code Files

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org/junit/internal/AssumptionViolatedException.java

package org.junit.internal;

import java.io.IOException;
import java.io.ObjectOutputStream;

import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.SelfDescribing;
import org.hamcrest.StringDescription;

/**
 * An exception class used to implement <i>assumptions</i> (state in which a given test
 * is meaningful and should or should not be executed). A test for which an assumption
 * fails should not generate a test case failure.
 *
 * @see org.junit.Assume
 */
public class AssumptionViolatedException extends RuntimeException implements SelfDescribing {
    private static final long serialVersionUID = 2L;

    /*
     * We have to use the f prefix until the next major release to ensure
     * serialization compatibility. 
     * See https://github.com/junit-team/junit4/issues/976
     */
    private final String fAssumption;
    private final boolean fValueMatcher;
    private final Object fValue;
    private final Matcher<?> fMatcher;

    /**
     * @deprecated Please use {@link org.junit.AssumptionViolatedException} instead.
     */
    @Deprecated
    public AssumptionViolatedException(String assumption, boolean hasValue, Object value, Matcher<?> matcher) {
        this.fAssumption = assumption;
        this.fValue = value;
        this.fMatcher = matcher;
        this.fValueMatcher = hasValue;

        if (value instanceof Throwable) {
          initCause((Throwable) value);
        }
    }

    /**
     * An assumption exception with the given <i>value</i> (String or
     * Throwable) and an additional failing {@link Matcher}.
     *
     * @deprecated Please use {@link org.junit.AssumptionViolatedException} instead.
     */
    @Deprecated
    public AssumptionViolatedException(Object value, Matcher<?> matcher) {
        this(null, true, value, matcher);
    }

    /**
     * An assumption exception with the given <i>value</i> (String or
     * Throwable) and an additional failing {@link Matcher}.
     *
     * @deprecated Please use {@link org.junit.AssumptionViolatedException} instead.
     */
    @Deprecated
    public AssumptionViolatedException(String assumption, Object value, Matcher<?> matcher) {
        this(assumption, true, value, matcher);
    }

    /**
     * An assumption exception with the given message only.
     *
     * @deprecated Please use {@link org.junit.AssumptionViolatedException} instead.
     */
    @Deprecated
    public AssumptionViolatedException(String assumption) {
        this(assumption, false, null, null);
    }

    /**
     * An assumption exception with the given message and a cause.
     *
     * @deprecated Please use {@link org.junit.AssumptionViolatedException} instead.
     */
    @Deprecated
    public AssumptionViolatedException(String assumption, Throwable e) {
        this(assumption, false, null, null);
        initCause(e);
    }

    @Override
    public String getMessage() {
        return StringDescription.asString(this);
    }

    public void describeTo(Description description) {
        if (fAssumption != null) {
            description.appendText(fAssumption);
        }

        if (fValueMatcher) {
            // a value was passed in when this instance was constructed; print it
            if (fAssumption != null) {
                description.appendText(": ");
            }

            description.appendText("got: ");
            description.appendValue(fValue);

            if (fMatcher != null) {
                description.appendText(", expected: ");
                description.appendDescriptionOf(fMatcher);
            }
        }
    }

    /**
     * Override default Java object serialization to correctly deal with potentially unserializable matchers or values.
     * By not implementing readObject, we assure ourselves of backwards compatibility and compatibility with the
     * standard way of Java serialization.
     *
     * @param objectOutputStream The outputStream to write our representation to
     * @throws IOException When serialization fails
     */
    private void writeObject(ObjectOutputStream objectOutputStream) throws IOException {
        ObjectOutputStream.PutField putField = objectOutputStream.putFields();
        putField.put("fAssumption", fAssumption);
        putField.put("fValueMatcher", fValueMatcher);

        // We have to wrap the matcher into a serializable form.
        putField.put("fMatcher", SerializableMatcherDescription.asSerializableMatcher(fMatcher));

        // We have to wrap the value inside a non-String class (instead of serializing the String value directly) as
        // A Description will handle a String and non-String object differently (1st is surrounded by '"' while the
        // latter will be surrounded by '<' '>'. Wrapping it makes sure that the description of a serialized and
        // non-serialized instance produce the exact same description
        putField.put("fValue", SerializableValueDescription.asSerializableValue(fValue));

        objectOutputStream.writeFields();
    }
}

org/junit/internal/AssumptionViolatedException.java

 

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