/**
* Copyright 2015 Google Inc. All Rights Reserved.
*
* 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 com.google.apphosting.tests.usercode.testservlets;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletResponse;
/**
* Base class with useful asserts that send output to an {@link HttpServletResponse}.
*
*
*/
class HttpServletTest extends HttpServlet {
static class AssertionFailedException extends Exception {
public AssertionFailedException(String message) {
super(message);
}
}
static void assertNull(String name, Object obj, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(1, name + " is not null", null == obj, response);
}
static void assertNotNull(String name, Object obj, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(1, name + " is null", null != obj, response);
}
static void assertEquals(String message, int a, int b, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(1, message + " expected: '" + a + "' but was: '" + b + "'", a == b, response);
}
static void assertEquals(String message, Object a, Object b, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(
1,
message + " expected: '" + a + "' but was: '" + b + "'",
(a == null ? b == null : a.equals(b)),
response);
}
static void assertTrue(String message, boolean condition, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(1, message, condition, response);
}
static void assertFalse(String message, boolean condition, HttpServletResponse response)
throws AssertionFailedException, IOException {
assertTrue(1, message, !condition, response);
}
static void assertTrue(
int callStackOffset, String message, boolean condition, HttpServletResponse response)
throws AssertionFailedException, IOException {
if (!condition) {
AssertionFailedException e = new AssertionFailedException(message);
StackTraceElement[] stackTrace = e.getStackTrace();
StackTraceElement element = stackTrace[1 + callStackOffset];
String fileName = element.getFileName();
int lineNumber = element.getLineNumber();
response.getWriter().print(fileName + ":" + lineNumber + " Assertion Failed: " + message);
throw e;
}
}
}