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test(assert): add spec with getterFn. (#1085)

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- on changes, decreases and increases family
This commit is contained in:
Adi Prasetyo 2018-03-18 02:15:09 +07:00 committed by Lucas Fernandes da Costa
parent 7db5214a5f
commit 11612e97da
1 changed files with 15 additions and 1 deletions
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16
test/assert.js
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@ -2293,18 +2293,23 @@ describe('assert', function () {
heroes = ['spiderman', 'superman'],
fn = function() { obj.value += 5 },
fnDec = function() { obj.value -= 20 },
getterFn = function() { return obj.value },
bangFn = function() { obj.str += '!' },
smFn = function() { 'foo' + 'bar' },
batFn = function() { heroes.push('batman') },
lenFn = function() { return heroes.length };
assert.changes(fn, obj, 'value');
assert.changes(fn, getterFn, 'changes via getter function');
assert.changesBy(fn, obj, 'value', 5);
assert.changesBy(fn, obj, 'value', -5);
assert.changesBy(fn, getterFn, 5);
assert.changesBy(fnDec, obj, 'value', 20);
assert.doesNotChange(smFn, obj, 'value');
assert.doesNotChange(smFn, getterFn, 'value');
assert.changesButNotBy(fnDec, obj, 'value', 1);
assert.changesButNotBy(fnDec, getterFn, 1);
assert.changes(bangFn, obj, 'str');
@ -2312,7 +2317,7 @@ describe('assert', function () {
assert.changesButNotBy(batFn, lenFn, 2);
err(function () {
assert.changes(smFn,obj, 'value', 'blah');
assert.changes(smFn, obj, 'value', 'blah');
}, "blah: expected .value to change");
err(function () {
@ -2344,17 +2349,26 @@ describe('assert', function () {
lenFn = function() { return arr.length },
incFn = function() { obj.value += 2 },
decFn = function() { obj.value -= 3 },
getterFn = function() { return obj.value },
smFn = function() { obj.value += 0 };
assert.decreases(decFn, obj, 'value');
assert.decreases(decFn, getterFn, 'decreases via getter function');
assert.doesNotDecrease(smFn, obj, 'value');
assert.doesNotDecrease(smFn, getterFn, 'value');
assert.decreasesBy(decFn, obj, 'value', 3);
assert.decreasesBy(decFn, getterFn, 3);
assert.decreasesButNotBy(decFn, obj, 'value', 10);
assert.decreasesButNotBy(decFn, getterFn, 10);
assert.increases(incFn, obj, 'value');
assert.increases(incFn, getterFn, 'increases via getter function');
assert.doesNotIncrease(smFn, obj, 'value');
assert.doesNotIncrease(smFn, getterFn, 'value');
assert.increasesBy(incFn, obj, 'value', 2);
assert.increasesBy(incFn, getterFn, 2);
assert.increasesButNotBy(incFn, obj, 'value', 1);
assert.increasesButNotBy(incFn, getterFn, 1);
assert.decreases(popFn, lenFn);
assert.doesNotDecrease(pFn, lenFn);