/*
 * Copyright 2012-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.security.oauth2.provider.token.store.jwk;


import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.security.oauth2.common.exceptions.InvalidTokenException;

import java.util.Map;

import static org.junit.Assert.assertEquals;
import static org.springframework.security.oauth2.provider.token.store.jwk.JwtTestUtil.createJwt;

/**
 * @author Joe Grandja
 */
public class JwtHeaderConverterTest {
	private final JwtHeaderConverter converter = new JwtHeaderConverter();

	@Rule
	public ExpectedException thrown = ExpectedException.none();


	@Test
	public void convertWhenJwtTokenIsNullThenThrowNullPointerException() throws Exception {
		this.thrown.expect(NullPointerException.class);
		this.converter.convert(null);
	}

	@Test
	public void convertWhenJwtTokenInvalidThenThrowJwkException() throws Exception {
		this.thrown.expect(InvalidTokenException.class);
		this.thrown.expectMessage("Invalid JWT. Missing JOSE Header.");
		this.converter.convert("");
	}

	@Test
	public void convertWhenJwtTokenValidThenReturnJwtHeaders() throws Exception {
		Map<String, String> jwtHeaders = this.converter.convert(createJwt());
		assertEquals("key-id-1", jwtHeaders.get(JwkAttributes.KEY_ID));
		assertEquals(JwkDefinition.CryptoAlgorithm.RS256.headerParamValue(), jwtHeaders.get(JwkAttributes.ALGORITHM));
	}
}