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Cleanup _.defaultTo.

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This commit is contained in:
John-David Dalton
2016-05-25 08:41:51 -07:00
parent 5fbc5303ff
commit 6e67ebab05
4 changed files with 33 additions and 58 deletions
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29
test/test-fp.js
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@@ -836,34 +836,11 @@
QUnit.module('fp.defaultTo');
(function() {
QUnit.test('should return a default value if input is undefined', function(assert) {
assert.expect(4);
// default (inverse params)
var actual = fp.defaultTo(0, fp.find(function(a) { return a > 1; }, [1,2,3]));
assert.deepEqual(actual, 2);
var actual = fp.defaultTo(0, fp.find(function(a) { return a > 5; }, [1,2,3]));
assert.deepEqual(actual, 0);
// curried
var actual = fp.defaultTo(0)(fp.find(function(a) { return a > 1; })([1,2,3]));
assert.deepEqual(actual, 2);
var actual = fp.defaultTo(0)(fp.find(function(a) { return a > 5; })([1,2,3]));
assert.deepEqual(actual, 0);
});
QUnit.test('should work in a flow', function(assert) {
QUnit.test('should have an argument order of `defaultValue` then `value`', function(assert) {
assert.expect(2);
var actual = fp.flow([
fp.find(function(a) { return a > 3 }),
fp.defaultTo(0)
]);
assert.deepEqual(actual([1,2,3]), 0);
assert.deepEqual(actual([3,4,5]), 4);
assert.strictEqual(fp.defaultTo(1)(0), 0);
assert.strictEqual(fp.defaultTo(1)(undefined), 1);
});
}());

15
test/test.js
View File

@@ -4604,15 +4604,18 @@
QUnit.module('lodash.defaultTo');
(function() {
QUnit.test('should return a default value if the input is undefined', function(assert) {
assert.expect(3);
QUnit.test('should return a default value if `value` is `undefined`', function(assert) {
assert.expect(1);
assert.strictEqual(_.defaultTo(1, 0), 1);
assert.strictEqual(_.defaultTo(undefined, 0), 0);
var expected = lodashStable.map(falsey, function(value) {
return value === undefined ? 1 : value;
});
var actual = _.defaultTo(_.find([1,2,3], function(n) { return n > 5; }), 0);
var actual = lodashStable.map(falsey, function(value) {
return _.defaultTo(value, 1);
});
assert.strictEqual(actual, 0);
assert.deepEqual(actual, expected);
});
}());