test and bugfix match

lib/portable-fp.js

@@ -77,7 +77,7 @@
         length: arg => _prop('length', arg, Number, NaN),
         map: (fn, list) => _map(_arity(1, fn), list, _isObject(list) ? {} : []),
         mapObjIndexed: (fn, list) => _map(fn, list),
-        match: _invoke(0, 'match'),
+        match: (rgx, str) => _invoke(1, 'match', [], ''.match)(rgx, str) || [],
         nAry: (n, fn) => _arity(n, fn),
         partial: _prt,
         pick: (keys, obj) => keys.reduce((accum, k) => (accum[k] = obj[k], accum), {}),

test/match.test.js

@@ -0,0 +1,30 @@
+const
+    { match } = require('portable-fp'),
+    { testCurrying } = require('./util'),
+    { expect } = require('chai');
+
+describe('match :: RegExp → String → [String | undefined]', function() {
+
+    it('returns the list of regular expression matches in a string', function() {
+        expect(match('', 'aa3a')).eql(['']);
+        expect(match('a', 'aa3a')).eql(['a']);
+        expect(match(/a/g, 'aa3a')).eql(['a', 'a', 'a']);
+        expect(match('ab', 'aa3a')).eql([]);
+    });
+
+    it('throws error when given null or undefined', function() {
+        const run = arg => () => match('', arg);
+        expect(run(null)).throw(TypeError);
+        expect(run(undefined)).throw(TypeError);
+    });
+
+    it('returns empty array on invalid input string', function() {
+        [true, false, {}, [], Infinity, NaN, 4]
+            .map(a => expect(match(/x/, a)).eql([]));
+    });
+
+    it('has arity of 2', () => expect(match).lengthOf(2));
+
+    it('is curried', testCurrying(match, [/x/, 4], [])); 
+
+});