fix #115

test/yargs-parser.js

@@ -1532,29 +1532,29 @@ describe('yargs-parser', function () {
 
     it('should eat camelCase switch with camelCase array option', function () {
       var result = parser(['--someOption', '1', '2'], {
-          array: ['someOption']
-        })
+        array: ['someOption']
+      })
       Array.isArray(result.someOption).should.equal(true)
       result.someOption.should.deep.equal([1, 2])
     })
     it('should eat hyphenated switch with hyphenated array option', function () {
       var result = parser(['--some-option', '1', '2'], {
-          array: ['some-option']
-        })
+        array: ['some-option']
+      })
       Array.isArray(result['some-option']).should.equal(true)
       result['some-option'].should.deep.equal([1, 2])
     })
     it('should eat camelCase switch with hyphenated array option', function () {
       var result = parser(['--someOption', '1', '2'], {
-          array: ['some-option']
-        })
+        array: ['some-option']
+      })
       Array.isArray(result['some-option']).should.equal(true)
       result['some-option'].should.deep.equal([1, 2])
     })
     it('should eat hyphenated switch with camelCase array option', function () {
       var result = parser(['--some-option', '1', '2'], {
-          array: ['someOption']
-        })
+        array: ['someOption']
+      })
       Array.isArray(result['someOption']).should.equal(true)
       result['someOption'].should.deep.equal([1, 2])
     })
@@ -2117,6 +2117,16 @@ describe('yargs-parser', function () {
 
         parsed['x'].should.deep.equal([['a', 'b'], ['c', 'd']])
       })
+      it('nests duplicate array types of more than 2', function () {
+        var parsed = parser('-x a b -x c d -x e f -x g h', {
+          array: ['x'],
+          configuration: {
+            'flatten-duplicate-arrays': false
+          }
+        })
+
+        parsed['x'].should.deep.equal([['a', 'b'], ['c', 'd'], ['e', 'f'], ['g', 'h']])
+      })
       it('doesn\'t nests single arrays', function () {
         var parsed = parser('-x a b', {
           array: ['x'],