diff --git a/context_test.go b/context_test.go
index 47ea3e7b..9da98c6d 100644
--- a/context_test.go
+++ b/context_test.go
@@ -32,6 +32,8 @@ func TestContext(t *testing.T) {
 	userXML := `<user><id>1</id><name>Joe</name></user>`
 	userXMLIndent := "_<user>\n_?<id>1</id>\n_?<name>Joe</name>\n_</user>"
 
+	var nonMarshallableChannel chan bool
+
 	req, _ := http.NewRequest(POST, "/", strings.NewReader(userJSON))
 	rec := httptest.NewRecorder()
 	c := NewContext(req, NewResponse(rec), New())
@@ -99,6 +101,13 @@ func TestContext(t *testing.T) {
 		assert.Equal(t, userJSON, rec.Body.String())
 	}
 
+	// JSON (error)
+	rec = httptest.NewRecorder()
+	c = NewContext(req, NewResponse(rec), New())
+	val := make(chan bool)
+	err = c.JSON(http.StatusOK, val)
+	assert.Error(t, err)
+
 	// JSONIndent
 	rec = httptest.NewRecorder()
 	c = NewContext(req, NewResponse(rec), New())
@@ -109,6 +118,12 @@ func TestContext(t *testing.T) {
 		assert.Equal(t, userJSONIndent, rec.Body.String())
 	}
 
+	// JSONIndent (error)
+	rec = httptest.NewRecorder()
+	c = NewContext(req, NewResponse(rec), New())
+	err = c.JSONIndent(http.StatusOK, nonMarshallableChannel, "_", "?")
+	assert.Error(t, err)
+
 	// JSONP
 	rec = httptest.NewRecorder()
 	c = NewContext(req, NewResponse(rec), New())
@@ -130,6 +145,12 @@ func TestContext(t *testing.T) {
 		assert.Equal(t, xml.Header+userXML, rec.Body.String())
 	}
 
+	// XML (error)
+	rec = httptest.NewRecorder()
+	c = NewContext(req, NewResponse(rec), New())
+	err = c.XML(http.StatusOK, nonMarshallableChannel)
+	assert.Error(t, err)
+
 	// XMLIndent
 	rec = httptest.NewRecorder()
 	c = NewContext(req, NewResponse(rec), New())
@@ -140,6 +161,12 @@ func TestContext(t *testing.T) {
 		assert.Equal(t, xml.Header+userXMLIndent, rec.Body.String())
 	}
 
+	// XMLIndent (error)
+	rec = httptest.NewRecorder()
+	c = NewContext(req, NewResponse(rec), New())
+	err = c.XMLIndent(http.StatusOK, nonMarshallableChannel, "_", "?")
+	assert.Error(t, err)
+
 	// String
 	rec = httptest.NewRecorder()
 	c = NewContext(req, NewResponse(rec), New())