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Ensure _.at can work as a callback for _.map and add similar unit tests for _.assign, _.defaults, _.merge, _.first, _.initial, _.last, and _.rest.

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Former-commit-id: 92e71c6bae084029df3cc0e7af78af7ce7566be0
This commit is contained in:
John-David Dalton
2013-08-15 00:33:59 -07:00
parent 0669a053db
commit 161012b0a7
7 changed files with 140 additions and 95 deletions
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42
test/test.js
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@@ -269,6 +269,13 @@
deepEqual(actual, [1, 3]);
});
test('should work when used as `callback` for `_.map`', function() {
var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
actual = _.map(array, _.at);
deepEqual(actual, [[1], [5], [9]]);
});
_.forEach({
'literal': 'abc',
'object': Object('abc')
@@ -940,6 +947,13 @@
deepEqual(func({}, new Foo), {});
});
test('should work when used as `callback` for `_.reduce`', function() {
var array = [{ 'a': 1 }, { 'b': 2 }, { 'c': 3 }],
actual = _.reduce(array, _.merge);
deepEqual(actual, { 'a': 1, 'b': 2, 'c': 3 });
});
if (methodName == 'merge') {
test('`_.' + methodName + '` should treat sparse arrays as dense', function() {
var array = Array(3);
@@ -1066,6 +1080,13 @@
deepEqual(_.first(array, 2), [1, 2]);
});
test('should work when used as `callback` for `_.map`', function() {
var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
actual = _.map(array, _.first);
deepEqual(actual, [1, 4, 7]);
});
test('should work with a `callback`', function() {
var actual = _.first(array, function(num) {
return num < 3;
@@ -1771,6 +1792,13 @@
deepEqual(_.initial(array, 2), [1]);
});
test('should work when used as `callback` for `_.map`', function() {
var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
actual = _.map(array, _.initial);
deepEqual(actual, [[1, 2], [4, 5], [7, 8]]);
});
test('should work with a `callback`', function() {
var actual = _.initial(array, function(num) {
return num > 1;
@@ -2169,6 +2197,13 @@
deepEqual(_.last(array, 2), [2, 3]);
});
test('should work when used as `callback` for `_.map`', function() {
var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
actual = _.map(array, _.last);
deepEqual(actual, [3, 6, 9]);
});
test('should work with a `callback`', function() {
var actual = _.last(array, function(num) {
return num > 1;
@@ -3082,6 +3117,13 @@
deepEqual(_.rest(array, 2), [3]);
});
test('should work when used as `callback` for `_.map`', function() {
var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
actual = _.map(array, _.rest);
deepEqual(actual, [[2, 3], [5, 6], [8, 9]]);
});
test('should work with a `callback`', function() {
var actual = _.rest(array, function(num) {
return num < 3;