test: use internal map function in place of Z.map

test/chainRec.js

@@ -1,10 +1,9 @@
 'use strict';
 
-var Z = require('sanctuary-type-classes');
-
 var S = require('..');
 
 var eq = require('./internal/eq');
+var map = require('./internal/map');
 
 
 test('chainRec', function() {
@@ -14,15 +13,15 @@ test('chainRec', function() {
   eq(S.chainRec.toString(), 'chainRec :: ChainRec m => TypeRep m -> (a -> m (Either a b)) -> a -> m b');
 
   function permute(s) {
-    return s.length === 2 ? Z.map(S.Right, [s + '!', s + '?'])
-                          : Z.map(S.Left, [s + 'o', s + 'n']);
+    return s.length === 2 ? map(S.Right)([s + '!', s + '?'])
+                          : map(S.Left)([s + 'o', s + 'n']);
   }
 
   eq(S.chainRec(Array, permute, ''), ['oo!', 'oo?', 'on!', 'on?', 'no!', 'no?', 'nn!', 'nn?']);
 
   function stepper(n) {
-    return n === 3000 ? Z.map(S.Right, function(env) { return n + env.inc; })
-                      : Z.map(S.Left, function(env) { return n + env.step; });
+    return n === 3000 ? map(S.Right)(function(env) { return n + env.inc; })
+                      : map(S.Left)(function(env) { return n + env.step; });
   }
 
   eq(S.chainRec(Function, stepper, 0)({step: 2, inc: 100}), 3100);