Add Swagger consistency check

docs/swagger_test.go

@@ -0,0 +1,29 @@
+package docs
+
+import (
+	"testing"
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/assert"
+	"net/http/httptest"
+	"io/ioutil"
+)
+
+func TestServe(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	recorder := httptest.NewRecorder()
+	ctx, _ := gin.CreateTestContext(recorder)
+	ctx.Request = httptest.NewRequest("GET", "/swagger", nil)
+	ctx.Request.URL.Host = "localhost"
+
+	Serve(ctx)
+
+	actualFileContent := getActualSpecFileContent(t)
+	packrFileContent := recorder.Body.String()
+	assert.JSONEq(t, packrFileContent, actualFileContent, "packr and spec file are out of sync")
+}
+
+func getActualSpecFileContent(t *testing.T) string {
+	bytes, err := ioutil.ReadFile("spec.json")
+	assert.Nil(t, err)
+	return string(bytes)
+}