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https://github.com/skyscreamer/JSONassert
Write JSON unit tests in less code. Great for testing REST interfaces.
https://github.com/skyscreamer/JSONassert
Last synced: 6 days ago
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Write JSON unit tests in less code. Great for testing REST interfaces.
- Host: GitHub
- URL: https://github.com/skyscreamer/JSONassert
- Owner: skyscreamer
- License: apache-2.0
- Created: 2012-02-01T21:55:17.000Z (almost 13 years ago)
- Default Branch: master
- Last Pushed: 2024-07-28T18:03:56.000Z (4 months ago)
- Last Synced: 2024-10-29T19:15:56.353Z (13 days ago)
- Language: Java
- Homepage: http://jsonassert.skyscreamer.org
- Size: 1.3 MB
- Stars: 996
- Watchers: 48
- Forks: 197
- Open Issues: 85
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE.txt
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README
JSONassert
==========
Write JSON unit tests in less code. Great for testing REST interfaces.
Summary
-------
Write JSON tests as if you are comparing a string. Under the covers, JSONassert converts your string into a JSON object and compares the logical structure and data with the actual JSON. When _strict_ is set to false (recommended), it forgives reordering data and extending results (as long as all the expected elements are there), making tests less brittle.
Supported test frameworks:
* [JUnit](http://junit.org)
Examples
--------
In JSONassert you write and maintain something like this:
JSONObject data = getRESTData("/friends/367.json");
String expected = "{friends:[{id:123,name:\"Corby Page\"},{id:456,name:\"Carter Page\"}]}";
JSONAssert.assertEquals(expected, data, false);
instead of all this:
JSONObject data = getRESTData("/friends/367.json");
Assert.assertTrue(data.has("friends"));
Object friendsObject = data.get("friends");
Assert.assertTrue(friendsObject instanceof JSONArray);
JSONArray friends = (JSONArray) friendsObject;
Assert.assertEquals(2, friends.length());
JSONObject friend1Obj = friends.getJSONObject(0);
Assert.assertTrue(friend1Obj.has("id"));
Assert.assertTrue(friend1Obj.has("name"));
JSONObject friend2Obj = friends.getJSONObject(1);
Assert.assertTrue(friend2Obj.has("id"));
Assert.assertTrue(friend2Obj.has("name"));
if ("Carter Page".equals(friend1Obj.getString("name"))) {
Assert.assertEquals(456, friend1Obj.getInt("id"));
Assert.assertEquals("Corby Page", friend2Obj.getString("name"));
Assert.assertEquals(123, friend2Obj.getInt("id"));
}
else if ("Corby Page".equals(friend1Obj.getString("name"))) {
Assert.assertEquals(123, friend1Obj.getInt("id"));
Assert.assertEquals("Carter Page", friend2Obj.getString("name"));
Assert.assertEquals(456, friend2Obj.getInt("id"));
}
else {
Assert.fail("Expected either Carter or Corby, Got: " + friend1Obj.getString("name"));
}
Error Messages
--------------
We tried to make error messages easy to understand. This is really important, since it gets hard for the eye to pick out the difference, particularly in long JSON strings. For example:
String expected = "{id:1,name:\"Joe\",friends:[{id:2,name:\"Pat\",pets:[\"dog\"]},{id:3,name:\"Sue\",pets:[\"bird\",\"fish\"]}],pets:[]}";
String actual = "{id:1,name:\"Joe\",friends:[{id:2,name:\"Pat\",pets:[\"dog\"]},{id:3,name:\"Sue\",pets:[\"cat\",\"fish\"]}],pets:[]}"
JSONAssert.assertEquals(expected, actual, false);
returns the following:
friends[id=3].pets[]: Expected bird, but not found ; friends[id=3].pets[]: Contains cat, but not expected
Which tells you that the pets array under the friend where id=3 was supposed to contain "bird", but had "cat" instead. (Maybe the cat ate the bird?)
* * *
QuickStart
----------
To use, [download the JAR](https://github.com/skyscreamer/JSONassert/releases) or add the following to your project's pom.xml:
org.skyscreamer
jsonassert
2.0-rc1
test
Write tests like this:
JSONAssert.assertEquals(expectedJSONString, actualJSON, strictMode);
[More examples in our cookbook](http://jsonassert.skyscreamer.org/cookbook.html)
* * *
Who uses JSONassert?
--------------------
+ [yoga](https://github.com/skyscreamer/yoga) - A relational REST framework
+ [hamcrest-json](https://github.com/hertzsprung/hamcrest-json) - Hamcrest matchers for comparing JSON documents
+ [Mule ESB](http://www.mulesoft.org/)
+ [GroupDocs](http://groupdocs.com/)
+ [Shazam](http://www.shazam.com/)
+ [Thucydides](http://thucydides.net/)
+ [and over a thousand more](https://mvnrepository.com/artifact/org.skyscreamer/jsonassert)...
* * *
org.json
--------
As of v2, JSONAssert uses @stleary's [JSON-java](https://github.com/stleary/JSON-java) implementation of org.json, the
most commonly used reference implementation for JSON in Java.
Resources
---------
[JavaDoc](http://jsonassert.skyscreamer.org/apidocs/index.html)