Add seq alias (#18)

Author: tardieu

composer.js

@@ -86,6 +86,10 @@ class Composer {
         return Array.prototype.map.call(arguments, x => this.task(x), this).reduce(chain)
     }
 
+    seq() {
+        return this.sequence(...arguments)
+    }
+
     if(test, consequent, alternate) {
         if (test == null || consequent == null) throw new ComposerError('Missing arguments in composition', arguments)
         const id = {}

test/test.js

@@ -117,7 +117,7 @@ describe('composer', function () {
                     } catch (error) {
                         assert.equal(error, 'Error: Invalid composition argument')
                     }
-                 })
+                })
 
                 it('42 must throw', function () {
                     try {
@@ -126,7 +126,7 @@ describe('composer', function () {
                     } catch (error) {
                         assert.equal(error, 'Error: Invalid composition argument')
                     }
-                 })
+                })
 
                 it('{ foo: \'bar\' } must throw', function () {
                     try {
@@ -161,6 +161,11 @@ describe('composer', function () {
                     return invoke(composer.sequence(composer.sequence('TripleAndIncrement', 'DivideByTwo'), 'DivideByTwo'), { n: 5 })
                         .then(activation => assert.deepEqual(activation.response.result, { n: 4 }))
                 })
+
+                it('seq', function () {
+                    return invoke(composer.seq('TripleAndIncrement', 'DivideByTwo', 'DivideByTwo'), { n: 5 })
+                        .then(activation => assert.deepEqual(activation.response.result, { n: 4 }))
+                })
             })
 
             describe('if', function () {