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contract-test.js
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contract-test.js
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var is = require("vows-is"),
_should = is.should,
EventEmitter = require("events").EventEmitter.prototype;
var contract = require("../src/contract.js")();
is.partial("contains pre", function _partial(context) {
return context
.context("contains pre which")
.topic.is(function(c) { return c.pre; })
.vow.it.should.be.a("function")
.parent();
});
is.partial("contains post", function _partial(context) {
return context
.context("contains post which")
.topic.is(function(c) { return c.post; })
.vow.it.should.be.a("function")
.parent();
});
is.partial("contains invariant", function _partial(context) {
return context
.context("contains invariant which")
.topic.is(function(c) { return c.invariant; })
.vow.it.should.be.a("function")
.parent();
});
is.partial("pre", function _partial(context) {
return context
.vow.it.should.be.a("function")
.context("when called (1)")
.topic.is.an.invocation(1)
.vow.it.should.error
.vow.it.should.have
.property("message", "expected undefined to exist")
.parent()
.context("when called (1,2)")
.topic.is.an.invocation(1,2)
.vow.it.should.error
.vow.it.should.have
.property("message", "expected 2 to be a string")
.parent()
.context("when called (1, 'foo')")
.topic.is.an.invocation(1, 'foo')
.vow.it.should.error
.vow.it.should.have
.property("message", "expected 1 to be above 5")
.parent()
.context("when called (6, 'foo')")
.topic.is.an.invocation(6, 'foo')
.vow.it.should.not.error
.vow.it.should.equal(6)
.batch();
});
is.partial("post", function _partial(context) {
return context
.vow.it.should.be.a("function")
.context("when called (5, 6)")
.topic.is.an.invocation(5, 6)
.vow.it.should.error
.vow.it.should.have
.property("message", "expected 5 to equal 6")
.parent()
.context("when called (5, 5)")
.topic.is.an.invocation(5, 5)
.vow.it.should.not.error
.vow.it.should.equal(5)
.batch();
});
is.partial("invariant", function _invariant(context) {
return context
.vow.it.should.be.a("function")
.context("when called ('foobar')")
.topic.is.an.invocation("foobar")
.vow.it.should.error
.vow.it.should.have
.property("message", "expected 50 to equal 42")
.parent()
.context("when called ('foo')")
.topic.is.an.invocation("foo")
.vow.it.should.not.error
.vow.it.should.equal(42)
.batch();
});
var suite = is.suite("contract").batch()
.context("the contract function")
.topic.is(function() { return contract; })
.vow.it.should.be.a("function")
.partial("contains pre")
.partial("contains post")
.partial("contains invariant")
.context("when called returns an object which")
.topic.is(function(c) { return c(function() { }); })
.vow.it.should.be.a("object")
.partial("contains pre")
.partial("contains post")
.partial("contains invariant")
.suite().batch()
.context("the function prototype")
.topic.is(function() { return Function.prototype; })
.vow.it.should.be.a("function")
.partial("contains pre")
.partial("contains post")
.partial("contains invariant")
.suite().batch()
.context("contract(f).pre(pre) ")
.topic.is(function() {
var c = contract(function _f(a, b) {
return a;
});
c = c.pre(function _pre(a,b) {
_should.exist(a);
a.should.be.a("number");
_should.exist(b);
b.should.be.a("string");
a.should.be.above(5).and.below(10);
});
return c.valueOf();
})
.partial("pre")
.context("f.pre(pre) ")
.topic.is(function() {
var c = function _f(a, b) {
return a;
};
return c.pre(function _pre(a, b) {
_should.exist(a);
a.should.be.a("number");
_should.exist(b);
b.should.be.a("string");
a.should.be.above(5).and.below(10);
});
})
.partial("pre")
.context("contract.pre(pre, f) ")
.topic.is(function() {
var c = function _f(a, b) {
return a;
};
return contract.pre(function _pre(a, b) {
_should.exist(a);
a.should.be.a("number");
_should.exist(b);
b.should.be.a("string");
a.should.be.above(5).and.below(10);
}, c);
})
.partial("pre")
.suite().batch()
.context("contract(f).post(post) ")
.topic.is(function() {
var c = contract(function _f(a, b) {
return a;
});
c = c.post(function _post(ret, a, b) {
ret.should.equal(b);
});
return c.valueOf();
})
.partial("post")
.context("f.post(post)")
.topic.is(function() {
var c = function _f(a, b) {
return a;
};
return c.post(function _post(ret, a, b) {
ret.should.equal(b);
});
})
.partial("post")
.context("contract.post(post, f) ")
.topic.is(function() {
var c = function(a, b) {
return a;
};
return contract.post(function _post(ret, a, b) {
ret.should.equal(b);
}, c)
})
.partial("post")
.suite().batch()
.context("contract(o.f).invariant(invariant)")
.topic.is(function() {
var o = {
foobar: 50,
c: function(mutator) {
return this[mutator] = 42;
}
};
o.c = contract(o.c).invariant(function(before) {
before.foobar.should.equal(this.foobar);
}).valueOf();
return o.c.bind(o);
})
.partial("invariant")
.context("o.f.invariant(invariant)")
.topic.is(function() {
var o = {
foobar: 50,
c: function(mutator) {
return this[mutator] = 42;
}
};
o.c = o.c.invariant(function(before) {
before.foobar.should.equal(this.foobar);
});
return o.c.bind(o);
})
.partial("invariant")
.context("contract.invariant(invariant, o.f)")
.topic.is(function() {
var o = {
foobar: 50,
c: function(mutator) {
return this[mutator] = 42;
}
};
o.c = contract.invariant(function() {
before.foobar.should.equal(this.foobar);
}, o.c);
return o.c.bind(o);
})
.suite();
if (module.parent) {
suite["export"](module);
} else {
suite.run({
reporter: is.reporter
}, function() {
is.end();
});
}