fixed json, xml pretty print

Signed-off-by: Vishal Rana <vr@labstack.com>

context.go

@@ -427,7 +427,7 @@ func (c *context) XMLPretty(code int, i interface{}, indent string) (err error)
 	if err != nil {
 		return
 	}
-	return c.JSONBlob(code, b)
+	return c.XMLBlob(code, b)
 }
 
 func (c *context) XMLBlob(code int, b []byte) (err error) {

context_test.go

@@ -73,6 +73,16 @@ func TestContext(t *testing.T) {
 		assert.Equal(t, userJSON, rec.Body.String())
 	}
 
+	// JSONPretty
+	rec = httptest.NewRecorder()
+	c = e.NewContext(req, rec).(*context)
+	err = c.JSONPretty(http.StatusOK, user{1, "Jon Snow"}, "\t")
+	if assert.NoError(t, err) {
+		assert.Equal(t, http.StatusOK, rec.Code)
+		assert.Equal(t, MIMEApplicationJSONCharsetUTF8, rec.Header().Get(HeaderContentType))
+		assert.Equal(t, userJSONPretty, rec.Body.String())
+	}
+
 	// JSON (error)
 	rec = httptest.NewRecorder()
 	c = e.NewContext(req, rec).(*context)
@@ -106,6 +116,16 @@ func TestContext(t *testing.T) {
 	err = c.XML(http.StatusOK, make(chan bool))
 	assert.Error(t, err)
 
+	// XMLPretty
+	rec = httptest.NewRecorder()
+	c = e.NewContext(req, rec).(*context)
+	err = c.XMLPretty(http.StatusOK, user{1, "Jon Snow"}, "\t")
+	if assert.NoError(t, err) {
+		assert.Equal(t, http.StatusOK, rec.Code)
+		assert.Equal(t, MIMEApplicationXMLCharsetUTF8, rec.Header().Get(HeaderContentType))
+		assert.Equal(t, xml.Header+userXMLPretty, rec.Body.String())
+	}
+
 	// String
 	rec = httptest.NewRecorder()
 	c = e.NewContext(req, rec).(*context)

echo_test.go

@@ -29,6 +29,16 @@ const (
 	invalidContent = "invalid content"
 )
 
+const userJSONPretty = `{
+	"id": 1,
+	"name": "Jon Snow"
+}`
+
+const userXMLPretty = `<user>
+	<id>1</id>
+	<name>Jon Snow</name>
+</user>`
+
 func TestEcho(t *testing.T) {
 	e := New()
 	req, _ := http.NewRequest(GET, "/", nil)