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Combine _.find and _.includes tests for fromIndex.

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This commit is contained in:
John-David Dalton
2016-05-14 23:16:38 -07:00
parent 573d902026
commit 06e7c963ef
1 changed files with 116 additions and 52 deletions
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168
test/test.js
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@@ -7632,58 +7632,6 @@
assert.strictEqual(_.includes(collection, 5), false);
});
QUnit.test('should work with ' + key + ' and a positive `fromIndex`', function(assert) {
assert.expect(2);
assert.strictEqual(_.includes(collection, values[2], 2), true);
assert.strictEqual(_.includes(collection, values[1], 2), false);
});
QUnit.test('should work with ' + key + ' and a `fromIndex` >= `collection.length`', function(assert) {
assert.expect(12);
lodashStable.each([4, 6, Math.pow(2, 32), Infinity], function(fromIndex) {
assert.strictEqual(_.includes(collection, 1, fromIndex), false);
assert.strictEqual(_.includes(collection, undefined, fromIndex), false);
assert.strictEqual(_.includes(collection, '', fromIndex), (isStr && fromIndex == length));
});
});
QUnit.test('should work with ' + key + ' and treat falsey `fromIndex` values as `0`', function(assert) {
assert.expect(1);
var expected = lodashStable.map(falsey, stubTrue);
var actual = lodashStable.map(falsey, function(fromIndex) {
return _.includes(collection, values[0], fromIndex);
});
assert.deepEqual(actual, expected);
});
QUnit.test('should work with ' + key + ' and coerce non-integer `fromIndex` values to integers', function(assert) {
assert.expect(3);
assert.strictEqual(_.includes(collection, values[0], '1'), false);
assert.strictEqual(_.includes(collection, values[0], 0.1), true);
assert.strictEqual(_.includes(collection, values[0], NaN), true);
});
QUnit.test('should work with ' + key + ' and a negative `fromIndex`', function(assert) {
assert.expect(2);
assert.strictEqual(_.includes(collection, values[2], -2), true);
assert.strictEqual(_.includes(collection, values[1], -2), false);
});
QUnit.test('should work with ' + key + ' and a negative `fromIndex` <= negative `collection.length`', function(assert) {
assert.expect(3);
lodashStable.each([-4, -6, -Infinity], function(fromIndex) {
assert.strictEqual(_.includes(collection, values[0], fromIndex), true);
});
});
QUnit.test('should work with ' + key + ' and floor `position` values', function(assert) {
assert.expect(1);
@@ -7765,6 +7713,122 @@
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.includes and lodash.find');
lodashStable.each(['includes', 'find'], function(methodName) {
var args = (function() { return arguments; }(1, 2, 3, 4)),
func = _[methodName],
isIncludes = methodName == 'includes',
resolve = methodName == 'find' ? lodashStable.curry(lodashStable.eq) : identity;
lodashStable.each({
'an `arguments` object': args,
'an array': [1, 2, 3, 4]
},
function(collection, key) {
var values = lodashStable.toArray(collection),
length = values.length;
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and a positive `fromIndex`', function(assert) {
assert.expect(1);
var expected = [
isIncludes || values[2],
isIncludes ? false : undefined
];
var actual = [
func(collection, resolve(values[2]), 2),
func(collection, resolve(values[1]), 2)
];
assert.deepEqual(actual, expected);
});
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and a `fromIndex` >= `collection.length`', function(assert) {
assert.expect(1);
var indexes = [4, 6, Math.pow(2, 32), Infinity];
var expected = lodashStable.map(indexes, function() {
var result = isIncludes ? false : undefined;
return [result, result, result];
});
var actual = lodashStable.map(indexes, function(fromIndex) {
return [
func(collection, resolve(1), fromIndex),
func(collection, resolve(undefined), fromIndex),
func(collection, resolve(''), fromIndex)
];
});
assert.deepEqual(actual, expected);
});
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and treat falsey `fromIndex` values as `0`', function(assert) {
assert.expect(1);
var expected = lodashStable.map(falsey, lodashStable.constant(isIncludes || values[0]));
var actual = lodashStable.map(falsey, function(fromIndex) {
return func(collection, resolve(values[0]), fromIndex);
});
assert.deepEqual(actual, expected);
});
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and coerce non-integer `fromIndex` values to integers', function(assert) {
assert.expect(1);
var expected = [
isIncludes || values[0],
isIncludes || values[0],
isIncludes ? false : undefined
];
var actual = [
func(collection, resolve(values[0]), 0.1),
func(collection, resolve(values[0]), NaN),
func(collection, resolve(values[0]), '1')
];
assert.deepEqual(actual, expected);
});
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and a negative `fromIndex`', function(assert) {
assert.expect(1);
var expected = [
isIncludes || values[2],
isIncludes ? false : undefined
];
var actual = [
func(collection, resolve(values[2]), -2),
func(collection, resolve(values[1]), -2)
];
assert.deepEqual(actual, expected);
});
QUnit.test('`_.' + methodName + '` should work with ' + key + ' and a negative `fromIndex` <= negative `collection.length`', function(assert) {
assert.expect(1);
var indexes = [-4, -6, -Infinity],
expected = lodashStable.map(indexes, lodashStable.constant(isIncludes || values[0]));
var actual = lodashStable.map(indexes, function(fromIndex) {
return func(collection, resolve(values[0]), fromIndex);
});
assert.deepEqual(actual, expected);
});
});
});
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.findIndex and lodash.indexOf');
lodashStable.each(['findIndex', 'indexOf'], function(methodName) {