tests; fix tests on absolute paths

test/append.js

@@ -15,9 +15,9 @@ module.exports = function (_, dir, next, gm) {
 
   var args = m.args();
   assert.equal('convert', args[0]);
-  assert.equal('/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/lost.png',args[1]);
-  assert.equal('/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',args[2]);
-  assert.equal('/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',args[3]);
+  assert.ok(/examples\/imgs\/lost\.png$/.test(args[1]));
+  assert.ok(/examples\/imgs\/original\.jpg$/,args[2]);
+  assert.ok(/examples\/imgs\/original\.jpg$/,args[3]);
   assert.equal('-background',args[4]);
   assert.equal('#222',args[5]);
   assert.equal('-append',args[6]);
@@ -46,8 +46,8 @@ function horizontal (dir, next, gm) {
 
   var args = m.args();
   assert.equal('convert', args[0]);
-  assert.equal('/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',args[1]);
-  assert.equal('/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/lost.png',args[2]);
+  assert.ok(/examples\/imgs\/original\.jpg$/.test(args[1]));
+  assert.ok(/examples\/imgs\/lost\.png$/.test(args[2]));
   assert.equal('+append',args[3]);
   assert.equal('-',args[4]);
 

test/gravity.js

@@ -10,11 +10,11 @@ module.exports = function (img, dir, finish, gm) {
   .extent(300,300);
 
   var args = m.args();
+  assert.equal('convert', args[0]);
+  assert.equal('-size', args[1]);
+  assert.equal('300x300', args[2]);
+  args= args.slice(4);
   assert.deepEqual(args, [
-    'convert',
-    '-size',
-    '300x300',
-    '/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',
     '-scale',
     '200x100',
     '-gravity',

test/polygon.js

@@ -10,9 +10,9 @@ module.exports = function (gm, dir, finish, GM) {
   .drawPolygon([60, 10], [183, 73], [185, 13], [167, 35], [165, 17], [163, 19]);
 
   var args = m.args();
+  assert.equal('convert', args[0]);
+  args = args.slice(2);
   assert.deepEqual(args, [
-    'convert',
-    '/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',
     '-blur',
     '8x4',
     '-strokewidth',

test/polyline.js

@@ -10,9 +10,9 @@ module.exports = function (gm, dir, finish, GM) {
   .drawPolyline([40, 10], [143, 153], [185, 53], [147, 15], [145, 17], [43, 19]);
 
   var args = m.args();
+  assert.equal('convert', args[0]);
+  args = args.slice(2);
   assert.deepEqual(args, [
-    'convert',
-    '/Users/aaronheckmann/test/gm/gm/test/../examples/imgs/original.jpg',
     '-blur',
     '8x4',
     '-strokewidth',