diff options
Diffstat (limited to 'src/node_modules/call-bind/test/index.js')
-rw-r--r-- | src/node_modules/call-bind/test/index.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/node_modules/call-bind/test/index.js b/src/node_modules/call-bind/test/index.js new file mode 100644 index 0000000..2b79974 --- /dev/null +++ b/src/node_modules/call-bind/test/index.js @@ -0,0 +1,52 @@ +'use strict'; + +var callBind = require('../'); + +var test = require('tape'); + +test('callBind', function (t) { + var sentinel = { sentinel: true }; + var func = function (a, b) { + // eslint-disable-next-line no-invalid-this + return [this, a, b]; + }; + t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args'); + t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args'); + t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args'); + + var bound = callBind(func); + t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with too few args'); + t.deepEqual(bound(1, 2), [1, 2, undefined], 'bound func with right args'); + t.deepEqual(bound(1, 2, 3), [1, 2, 3], 'bound func with too many args'); + + var boundR = callBind(func, sentinel); + t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args'); + t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args'); + t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args'); + + var boundArg = callBind(func, sentinel, 1); + t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args'); + t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg'); + t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args'); + + t.test('callBind.apply', function (st) { + var aBound = callBind.apply(func); + st.deepEqual(aBound(sentinel), [sentinel, undefined, undefined], 'apply-bound func with no args'); + st.deepEqual(aBound(sentinel, [1], 4), [sentinel, 1, undefined], 'apply-bound func with too few args'); + st.deepEqual(aBound(sentinel, [1, 2], 4), [sentinel, 1, 2], 'apply-bound func with right args'); + + var aBoundArg = callBind.apply(func); + st.deepEqual(aBoundArg(sentinel, [1, 2, 3], 4), [sentinel, 1, 2], 'apply-bound func with too many args'); + st.deepEqual(aBoundArg(sentinel, [1, 2], 4), [sentinel, 1, 2], 'apply-bound func with right args'); + st.deepEqual(aBoundArg(sentinel, [1], 4), [sentinel, 1, undefined], 'apply-bound func with too few args'); + + var aBoundR = callBind.apply(func, sentinel); + st.deepEqual(aBoundR([1, 2, 3], 4), [sentinel, 1, 2], 'apply-bound func with receiver and too many args'); + st.deepEqual(aBoundR([1, 2], 4), [sentinel, 1, 2], 'apply-bound func with receiver and right args'); + st.deepEqual(aBoundR([1], 4), [sentinel, 1, undefined], 'apply-bound func with receiver and too few args'); + + st.end(); + }); + + t.end(); +}); |