JsonPath/json-path/src/test/java/com/jayway/jsonpath/TestUtils.java

package com.jayway.jsonpath;

import static com.jayway.jsonpath.JsonPath.using;
import static org.assertj.core.api.Assertions.fail;

public final class TestUtils {
    private TestUtils() {}

    public static void assertEvaluationThrows(final String json, final String path,
                                              Class<? extends JsonPathException> expected) {
        assertEvaluationThrows(json, path, expected, Configuration.defaultConfiguration());
    }

    /**
     * Shortcut for expected exception testing during path evaluation.
     *
     * @param conf conf to use during evaluation
     * @param json json to parse
     * @param path jsonpath do evaluate
     * @param expected expected exception class (reference comparison, not an instanceof)
     */
    public static void assertEvaluationThrows(final String json, final String path,
                                              Class<? extends JsonPathException> expected, final Configuration conf) {
        try {
            using(conf).parse(json).read(path);
            fail("Should throw " + expected.getName());
        } catch (JsonPathException exc) {
            if (exc.getClass() != expected)
                throw exc;
        }
    }
}