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var chai = require('chai');
var expect = chai.expect;
var Promise = require('bluebird');
describe('#withMessage()', function() {
describe('on async validators', function() {
before(function() {
delete require.cache[require.resolve('../lib/express_validator')];
});
it('should not affect a passing validation', function(done) {
var validator = require('../lib/express_validator')({
customValidators: {
test: function() {
// A dummy passing validator
return new Promise(function(resolve) {
resolve();
});
}
}
});
var req = {
body: {
testParam: 100
}
};
validator(req, {}, function() {});
req.check('testParam', 'Default Message')
.test().withMessage('Custom Message');
verify(done, function() {
return req.asyncValidationErrors()
.catch(function() {
expect.fail(null, null, 'No errors should have been generated by the test');
});
});
});
it('should provide a custom message when a validation fails', function(done) {
var validator = require('../lib/express_validator')({
customValidators: {
test: function() {
// A dummy failing validator
return new Promise(function(resolve, reject) {
reject();
});
}
}
});
var req = {
body: {
testParam: 100
}
};
validator(req, {}, function() {});
req.check('testParam', 'Default Message')
.test().withMessage('Custom Message');
verify(done, function() {
return req.asyncValidationErrors()
.catch(function(err) {
expect(err).to.deep.equal([{
msg: 'Custom Message',
param: 'testParam',
value: 100
}]);
});
});
});
it('should provide the default message if it was not the validation to fail', function(done) {
var validator = require('../lib/express_validator')({
customValidators: {
pass: function() {
return new Promise(function(resolve) { resolve(); });
},
fail: function() {
return new Promise(function(resolve, reject) { reject(); });
}
}
});
var req = {
body: {
testParam: 100
}
};
validator(req, {}, function() {});
req.check('testParam', 'Default Message')
.fail() // Default Message
.pass().withMessage('Passing Message')
.fail() // Default Message
.fail().withMessage('Failing Message')
.fail() // Default Message
.fail().withMessage('Failing Message 1')
.fail().withMessage('Failing Message 2');
var expected = [
'Default Message',
'Default Message',
'Failing Message',
'Default Message',
'Failing Message 1',
'Failing Message 2'];
verify(done, function() {
return req.asyncValidationErrors()
.catch(function(err) {
expect(err.map(function(e) {return e.msg;})).to.deep.equal(expected);
});
});
});
// Helper to handle resolving tests async
function verify(done, f) {
try {
var test = f();
if (test && test.then) {
test.then(function() {
done();
})
.catch(function(err) {
done(err);
});
} else {
done();
}
}
catch (e) {
done(e);
}
}
});
});
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