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Add _.clamp and tests.

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This commit is contained in:
Xotic750
2015-10-22 01:37:19 +02:00
committed by John-David Dalton
parent ff22efb3e2
commit b95ed73e1d
2 changed files with 97 additions and 1 deletions
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74
test/test.js
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@@ -2028,6 +2028,78 @@
/*--------------------------------------------------------------------------*/
QUnit.module('lodash.clamp');
(function() {
QUnit.test('should limit negative numbers', function(assert) {
assert.expect(3);
assert.strictEqual(_.clamp(-10, -5, 5), -5);
assert.strictEqual(_.clamp(-10.2, -5.5, 5.5), -5.5);
assert.strictEqual(_.clamp(-Infinity, -5, 5), -5);
});
QUnit.test('should limit posiive number', function(assert) {
assert.expect(3);
assert.strictEqual(_.clamp(10, -5, 5), 5)
assert.strictEqual(_.clamp(10.6, -5.6, 5.4), 5.4);
assert.strictEqual(_.clamp(Infinity, -5, 5), 5)
});
QUnit.test('should not alter negative numbers in range', function(assert) {
assert.expect(3);
assert.strictEqual(_.clamp(-4, -5, 5), -4);
assert.strictEqual(_.clamp(-5, -5, 5), -5);
assert.strictEqual(_.clamp(-5.5, -5.6, 5.6), -5.5);
});
QUnit.test('should not alter positive numbers in range`', function(assert) {
assert.expect(3);
assert.strictEqual(_.clamp(4, -5, 5), 4);
assert.strictEqual(_.clamp(5, -5, 5), 5);
assert.strictEqual(_.clamp(4.5, -5.1, 5.2), 4.5);
});
QUnit.test('should not alter positive zero in range', function(assert) {
assert.expect(1);
assert.strictEqual(1 / _.clamp(0, -5, 5), 1 / 0);
});
QUnit.test('should clamp to positive zero', function(assert) {
assert.expect(1);
assert.strictEqual(1 / _.clamp(-10, 0, 5), 1 / 0);
});
QUnit.test('should not alter negative zero in range', function(assert) {
assert.expect(1);
assert.strictEqual(1 / _.clamp(-0, -5, 5), 1 / -0);
});
QUnit.test('should clamp to negative zero', function(assert) {
assert.expect(1);
assert.strictEqual(1 / _.clamp(-10, -0, 5), 1 / -0);
});
QUnit.test('should return NaN if an argument is or is coerced to NaN', function(assert) {
assert.expect(5);
assert.deepEqual(_.clamp(NaN, -5, 5), NaN);
assert.deepEqual(_.clamp(Infinity, -5, NaN), NaN);
assert.deepEqual(_.clamp(-Infinity, -5, NaN), NaN);
assert.deepEqual(_.clamp(Infinity, NaN, 5), NaN);
assert.deepEqual(_.clamp(-Infinity, NaN, 5), NaN);
});
}());
/*--------------------------------------------------------------------------*/
QUnit.module('clone methods');
(function() {
@@ -21667,7 +21739,7 @@
var acceptFalsey = lodashStable.difference(allMethods, rejectFalsey);
QUnit.test('should accept falsey arguments', function(assert) {
assert.expect(259);
assert.expect(260);
var emptyArrays = lodashStable.map(falsey, lodashStable.constant([]));