Assertion library for Java >= 8
Accessible from Maven central. Coordinates:
You will need at minimum
The best place to begin exploring is in test class ExpectationsTest.
Javadoc is here.
RSpec-like syntax for nominating test subjects and specifying expectations on them:
expect("foo").to(s -> s.startsWith("f"));
Uses predicates as the means for specifying expectations on test subjects.
Predicateis a functional interface, so you can use lambda expressions and method references to specify the expectations more succinctly and sweetly.
When an expectation or assumption is not met, the raised exception's message will
toString() of the expectation. A lambda expression's
is not terribly pretty or helpful. If evocative assertion error messages are
important to you, you may want to create implementations of
anonymous or otherwise, and override
toString() to your liking.
lambspec was written by Paul Holser, and is distributed under the MIT License.
The MIT License Copyright (c) 2014-2016 Paul R. Holser, Jr. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.