Add tests for graph

models/graph_test.go

@@ -0,0 +1,19 @@
+package models
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGenerateGraph(t *testing.T) {
+	assert := assert.New(t)
+
+	nodes := &Nodes{
+		List: make(map[string]*Node),
+	}
+
+	graph := nodes.BuildGraph()
+	assert.NotNil(graph)
+	// TODO more tests required
+}