2018-09-27 22:11:45 +00:00
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class Object
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# Extension method to create an expectation for an object.
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# This is part of the spec DSL and mimics Crystal Spec's default should-syntax.
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# A matcher should immediately follow this method, or be the only argument to it.
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# Example usage:
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# ```
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# it "equals the expected value" do
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# subject.should eq(42)
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# end
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# ```
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#
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2021-07-17 23:42:25 +00:00
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# An optional message can be used in case the expectation fails.
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# It can be a string or proc returning a string.
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# ```
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# subject.should_not be_nil, "Shouldn't be nil"
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# ```
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#
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2018-09-27 22:11:45 +00:00
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# NOTE: By default, the should-syntax is disabled.
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# The expect-syntax is preferred,
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# since it doesn't [monkey-patch](https://en.wikipedia.org/wiki/Monkey_patch) all objects.
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# To enable should-syntax, add the following to your `spec_helper.cr` file:
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# ```
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# require "spectator/should"
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# ```
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2022-12-20 05:27:58 +00:00
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def should(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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2021-01-16 18:12:41 +00:00
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actual = ::Spectator::Value.new(self)
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location = ::Spectator::Location.new(_file, _line)
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2021-01-16 18:12:41 +00:00
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match_data = matcher.match(actual)
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2022-12-20 05:27:58 +00:00
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expectation = ::Spectator::Expectation.new(match_data, location, message)
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2021-01-16 18:12:41 +00:00
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::Spectator::Harness.current.report(expectation)
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2018-09-27 22:11:45 +00:00
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end
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# Works the same as `#should` except the condition is inverted.
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# When `#should` succeeds, this method will fail, and vice-versa.
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2022-12-20 05:27:58 +00:00
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def should_not(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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2021-01-16 18:12:41 +00:00
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actual = ::Spectator::Value.new(self)
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location = ::Spectator::Location.new(_file, _line)
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match_data = matcher.negated_match(actual)
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2022-12-20 05:27:58 +00:00
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expectation = ::Spectator::Expectation.new(match_data, location, message)
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2021-01-16 18:12:41 +00:00
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::Spectator::Harness.current.report(expectation)
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2018-09-27 22:11:45 +00:00
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end
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2019-11-15 01:26:24 +00:00
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2021-11-28 22:45:17 +00:00
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# Works the same as `#should` except that the condition check is postponed.
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2019-11-15 01:26:24 +00:00
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# The expectation is checked after the example finishes and all hooks have run.
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2022-12-20 05:27:58 +00:00
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def should_eventually(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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::Spectator::Harness.current.defer { should(matcher, message, _file: _file, _line: _line) }
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2019-11-15 01:26:24 +00:00
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end
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2021-11-28 22:45:17 +00:00
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# Works the same as `#should_not` except that the condition check is postponed.
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2019-11-15 01:26:24 +00:00
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# The expectation is checked after the example finishes and all hooks have run.
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2022-12-20 05:27:58 +00:00
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def should_never(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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::Spectator::Harness.current.defer { should_not(matcher, message, _file: _file, _line: _line) }
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2019-11-15 01:26:24 +00:00
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end
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2018-09-27 22:11:45 +00:00
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end
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2019-03-24 02:20:15 +00:00
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struct Proc(*T, R)
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# Extension method to create an expectation for a block of code (proc).
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# Depending on the matcher, the proc may be executed multiple times.
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2022-12-20 05:27:58 +00:00
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def should(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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actual = ::Spectator::Block.new(self)
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2022-12-20 05:27:58 +00:00
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location = ::Spectator::Location.new(_file, _line)
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match_data = matcher.match(actual)
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expectation = ::Spectator::Expectation.new(match_data, location, message)
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::Spectator::Harness.current.report(expectation)
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2019-03-24 02:20:15 +00:00
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end
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# Works the same as `#should` except the condition is inverted.
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# When `#should` succeeds, this method will fail, and vice-versa.
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2022-12-20 05:27:58 +00:00
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def should_not(matcher, message = nil, *, _file = __FILE__, _line = __LINE__)
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actual = ::Spectator::Block.new(self)
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location = ::Spectator::Location.new(_file, _line)
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match_data = matcher.negated_match(actual)
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expectation = ::Spectator::Expectation.new(match_data, location, message)
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2021-01-16 18:12:41 +00:00
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::Spectator::Harness.current.report(expectation)
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2019-03-24 02:20:15 +00:00
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end
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end
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2021-01-10 18:09:28 +00:00
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2021-01-31 03:27:36 +00:00
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module Spectator::DSL::Expectations
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2021-07-17 23:42:25 +00:00
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macro should(*args)
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expect(subject).to({{args.splat}})
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2021-01-10 18:09:28 +00:00
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end
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2021-07-17 23:42:25 +00:00
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macro should_not(*args)
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expect(subject).to_not({{args.splat}})
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2021-01-10 18:09:28 +00:00
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end
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2021-07-17 23:42:25 +00:00
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macro should_eventually(*args)
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expect(subject).to_eventually({{args.splat}})
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2021-01-10 18:09:28 +00:00
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end
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2021-07-17 23:42:25 +00:00
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macro should_never(*args)
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expect(subject).to_never({{args.splat}})
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2021-01-10 18:09:28 +00:00
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end
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end
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