Merge pull request #19 from fink-lang/wrappers

feat(jest-wrapper): add spy_on, was_last_called_with, was_not_last_called_with

package.json

@@ -44,11 +44,11 @@
     "cz-conventional-changelog": "^3.3.0",
     "jest-cli": "^26.4.2",
     "npx-run": "^2.1.2",
-    "semantic-release": "^17.1.1"
+    "semantic-release": "^17.1.2"
   },
   "dependencies": {
     "@babel/core": "^7.11.6",
-    "@fink/js-interop": "^1.1.0",
-    "@fink/std-lib": "^4.0.0"
+    "@fink/js-interop": "^1.1.1",
+    "@fink/std-lib": "^4.0.1"
   }
 }

src/index.fnk

@@ -40,6 +40,8 @@ mock_fn = jest_.fn
 
 mock = jest_.mock
 
+spy_on = jest_.spyOn
+
 require_actual = jest_.require_actual
 
 
@@ -50,30 +52,43 @@ to_not_equal = fn expected: fn expect_actual:
   expect_actual.not.toEqual expected
 
 
+
 to_match_snapshot = fn expect_actual:
   expect_actual.toMatchSnapshot ()
 
 
+
 was_called = fn expect_actual:
   expect_actual.toBeCalled ()
 
 was_not_called = fn expect_actual:
   expect_actual.not.toBeCalled ()
 
 
+
 was_called_with = fn ...expected: fn expect_actual:
   expect_actual.toHaveBeenCalledWith ...expected
 
 was_not_called_with = fn ...expected: fn expect_actual:
   expect_actual.not.toHaveBeenCalledWith ...expected
 
 
+
+was_last_called_with = fn ...expected: fn expect_actual:
+  expect_actual.toHaveBeenLastCalledWith ...expected
+
+was_not_last_called_with = fn ...expected: fn expect_actual:
+  expect_actual.not.toHaveBeenLastCalledWith ...expected
+
+
+
 to_throw = fn expected: fn expect_actual:
   expect_actual.toThrow expected
 
 to_not_throw = fn expected: fn expect_actual:
   expect_actual.not.toThrow expected
 
 
+
 expect = fn actual, expectation:
   expectation jest_expect actual

src/index.test.fnk

@@ -3,9 +3,10 @@
 {String, Number, Error} = import '@fink/js-interop/globals'
 
 
-{skip, only, describe, it, expect, any, mock, mock_fn} = import '.'
+{skip, only, describe, it, expect, any, mock, mock_fn, spy_on} = import '.'
 {to_equal, to_not_equal} = import '.'
 {was_called, was_not_called, was_called_with, was_not_called_with} = import '.'
+{was_last_called_with, was_not_last_called_with} = import '.'
 {to_throw, to_not_throw} = import '.'
 
 
@@ -40,6 +41,7 @@ only.describe 'test utils', fn:
       was_not_called
 
     foo 'bar'
+    foo 'ni'
 
     expect
       foo
@@ -57,6 +59,14 @@ only.describe 'test utils', fn:
       foo
       was_called_with 'bar'
 
+    expect
+      foo
+      was_last_called_with 'ni'
+
+    expect
+      foo
+      was_not_last_called_with 'bar'
+
 
   only.it 'test mock module virtual', fn:
     test 'testing'
@@ -65,6 +75,20 @@ only.describe 'test utils', fn:
       was_called_with 'testing'
 
 
+  only.it 'spies on obj funcs', fn:
+    obj = {foo: fn: 'bar'}
+    spy = spy_on obj , 'foo'
+
+    expect
+      obj.foo _
+      to_equal 'bar'
+
+    expect
+      spy
+      was_called
+
+
+
   only.it 'tests exceptions', fn:
     foo = mock_fn
       # istanbul ignore next
@@ -86,6 +110,7 @@ only.describe 'test utils', fn:
       to_equal false
 
 
+
 describe 'plain describe', fn:
   it 'ignores return value', fn:
     'foo'