using nonces more where applicable, also added tests for default

arguments

test/arguments.coffee

@@ -57,29 +57,33 @@ eq (((_, _, splat..., _) -> splat) 0,1,2,3)[0], 2
 
 # @-parameters: automatically assign an argument's value to a property of the context
 (->
-  ((@prop) ->).call context = {}, 1
-  eq context.prop, 1
+  nonce = {}
+
+  ((@prop) ->).call context = {}, nonce
+  eq context.prop, nonce
 
   # allow splats along side the special argument
-  ((splat..., @prop) ->).apply context = {}, [1, 2, 3]
-  eq context.prop, 3
+  ((splat..., @prop) ->).apply context = {}, [0, 0, nonce]
+  eq context.prop, nonce
 
   # allow the argument itself to be a splat
-  ((@prop...) ->).call context = {}, 1, 2, 3
-  eq context.prop.join(' '), '1 2 3'
+  ((@prop...) ->).call context = {}, 0, nonce, 0
+  eq context.prop[1], nonce
 
   # the argument should still be able to be referenced normally
-  eq (((@prop) -> prop).call {}, 1), 1
+  eq (((@prop) -> prop).call {}, nonce), nonce
 )()
 
 # @-parameters and splats with constructors
 (->
+  a = {}
+  b = {}
   class Klass
     constructor: (@first, splat..., @last) ->
 
-  obj = new Klass 0, 1, 2
-  eq obj.first, 0
-  eq obj.last, 2
+  obj = new Klass a, 0, 0, b
+  eq obj.first, a
+  eq obj.last, b
 )()
 
 # destructuring in function definition
@@ -90,9 +94,41 @@ eq (((_, _, splat..., _) -> splat) 0,1,2,3)[0], 2
 
 # default values
 (->
-  obj = f: (q = 123, @p = 456) -> q
-  eq obj.f(), 123
-  eq obj.p  , 456
+  nonceA = {}
+  nonceB = {}
+  a = (_,_,arg=nonceA) -> arg
+  eq a(), nonceA
+  eq a(0), nonceA
+  eq a(0,0,nonceB), nonceB
+  eq a(0,0,undefined), nonceA
+  eq a(0,0,null), nonceA
+  eq a(0,0,false), false
+  eq a(undefined,undefined,nonceB,undefined), nonceB
+  b = (_,arg=nonceA,_,_) -> arg
+  eq b(), nonceA
+  eq b(0), nonceA
+  eq b(0,nonceB), nonceB
+  eq b(0,undefined), nonceA
+  eq b(0,null), nonceA
+  eq b(0,false), false
+  eq b(undefined,nonceB,undefined), nonceB
+  c = (arg=nonceA,_,_) -> arg
+  eq c(), nonceA
+  eq c(0), 0
+  eq c(nonceB), nonceB
+  eq c(undefined), nonceA
+  eq c(null), nonceA
+  eq c(false), false
+  eq c(nonceB,undefined,undefined), nonceB
+)()
+
+# default values with @-parameters
+(->
+  a = {}
+  b = {}
+  obj = f: (q = a, @p = b) -> q
+  eq obj.f(), a
+  eq obj.p  , b
 )()
 
 # default values with splatted arguments
@@ -104,10 +140,3 @@ eq (((_, _, splat..., _) -> splat) 0,1,2,3)[0], 2
   eq  1, withSplats 1, 1, 1
   eq  2, withSplats 1, 1, 1, 1
 )()
-
-
-
-
-
-
-

test/operators.coffee

@@ -34,7 +34,6 @@ eq (+ +1), (- -1)
   eq (10 <<  3), 80
   eq (10 >>  3), 1
   eq (10 >>> 3), 1
-
   num = 10; eq (num &=   3), 2
   num = 10; eq (num |=   3), 11
   num = 10; eq (num ^=   3), 9
@@ -53,25 +52,27 @@ eq (+ +1), (- -1)
 )()
 
 
-#### compound assignment operators
+#### Compound Assignment Operators
 
 # boolean operators
 (->
+  nonce = {}
+
   a  = 0
-  a or= 2
-  eq a, 2
+  a or= nonce
+  eq a, nonce
 
   b  = 1
-  b or= 2
+  b or= nonce
   eq b, 1
 
   c = 0
-  c and= 2
+  c and= nonce
   eq c, 0
 
   d = 1
-  d and= 2
-  eq d, 2
+  d and= nonce
+  eq d, nonce
 
   # ensure that RHS is treated as a group
   e = f = false
@@ -89,6 +90,7 @@ eq (+ +1), (- -1)
 )()
 
 # compound assignment should be careful about caching variables
+# *note: this test could still use refactoring*
 (->
   count = 0
   list = []
@@ -216,7 +218,7 @@ eq 1, 1 in [1] and 1
 )()
 
 
-#### chainable operators
+#### Chainable Operators
 
 ok 100 > 10 > 1 > 0 > -1
 ok -1 < 0 < 1 < 10 < 100
@@ -239,6 +241,7 @@ eq 1, 1 | 2 < 3 < 4
 (->
   a = b = c = 1
   # `a == b <= c` should become `a === b && b <= c`
+  # (this test does not seem to test for this)
   ok a == b <= c
 )()