JUnit Source Code Files are provided in the source package file, junit-4.13.2-sources.jar.

You can browse JUnit Source Code files below:

⏎ org/junit/internal/runners/statements/ExpectException.java

package org.junit.internal.runners.statements;

import org.junit.internal.AssumptionViolatedException;
import org.junit.runners.model.Statement;

public class ExpectException extends Statement {
    private final Statement next;
    private final Class<? extends Throwable> expected;

    public ExpectException(Statement next, Class<? extends Throwable> expected) {
        this.next = next;
        this.expected = expected;
    }

    @Override
    public void evaluate() throws Exception {
        boolean complete = false;
        try {
            next.evaluate();
            complete = true;
        } catch (AssumptionViolatedException e) {
            if (!expected.isAssignableFrom(e.getClass())) {
                throw e;
            }
        } catch (Throwable e) {
            if (!expected.isAssignableFrom(e.getClass())) {
                String message = "Unexpected exception, expected<"
                        + expected.getName() + "> but was<"
                        + e.getClass().getName() + ">";
                throw new Exception(message, e);
            }
        }
        if (complete) {
            throw new AssertionError("Expected exception: "
                    + expected.getName());
        }
    }
}

⏎ org/junit/internal/runners/statements/ExpectException.java

Or download all of them as a single archive file:

File name: junit-4.13.2-sources.jar
File size: 234540 bytes
Release date: 2021-02-13
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