diff --git a/generate/swaggergen/go_docs_test.go b/generate/swaggergen/go_docs_test.go
new file mode 100644
index 0000000..ddfbdb7
--- /dev/null
+++ b/generate/swaggergen/go_docs_test.go
@@ -0,0 +1,117 @@
+package swaggergen
+
+import (
+	"go/ast"
+	"go/build"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+//package model
+//
+//import (
+//	"github.com/shopspring/decimal"
+//)
+//
+//type Object struct{
+//	Total  decimal.Decimal
+//}
+func TestCheckAndLoadPackageOnGoMod(t *testing.T) {
+	var (
+		pkgName       = "decimal"
+		pkgImportPath = "github.com/shopspring/decimal"
+	)
+
+	defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE"))
+	os.Setenv("GO111MODULE", "on")
+
+	imports := []*ast.ImportSpec{
+		{
+			Path: &ast.BasicLit{
+				Value: pkgImportPath,
+			},
+		},
+	}
+	checkAndLoadPackage(imports, "decimal.Decimal", "model")
+	if len(astPkgs) == 0 {
+		t.Fatalf("failed to load module: %s", pkgImportPath)
+	}
+	notLoadFlag := true
+	for _, v := range astPkgs {
+		if v.Name == pkgName {
+			notLoadFlag = false
+		}
+	}
+	if notLoadFlag {
+		t.Fatalf("failed to load module: %s", pkgImportPath)
+	}
+}
+
+//package model
+//
+//import (
+//"example.com/comm"
+//)
+//
+//type Object struct {
+//	Total comm.Common
+//}
+func TestCheckAndLoadPackageOnGoPath(t *testing.T) {
+	var (
+		pkgName       = "comm"
+		pkgImportPath = "example.com/comm"
+
+		testCommPkg = `
+package comm
+
+type Common struct {
+	Code  string
+	Error string
+}
+`
+	)
+
+	gopath, err := ioutil.TempDir("", "gobuild-gopath")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer os.RemoveAll(gopath)
+
+	if err := os.MkdirAll(filepath.Join(gopath, "src/example.com/comm"), 0777); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ioutil.WriteFile(filepath.Join(gopath, "src/example.com/comm/comm.go"), []byte(testCommPkg), 0666); err != nil {
+		t.Fatal(err)
+	}
+
+	defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE"))
+	os.Setenv("GO111MODULE", "off")
+	defer os.Setenv("GOPATH", os.Getenv("GOPATH"))
+	os.Setenv("GOPATH", gopath)
+	build.Default.GOPATH = gopath
+
+	imports := []*ast.ImportSpec{
+		{
+			Path: &ast.BasicLit{
+				Value: pkgImportPath,
+			},
+		},
+	}
+	checkAndLoadPackage(imports, "comm.Common", "model")
+	if len(astPkgs) == 0 {
+		t.Fatalf("failed to load module: %s", pkgImportPath)
+	}
+	notLoadFlag := true
+	for _, v := range astPkgs {
+		if v.Name == pkgName {
+			notLoadFlag = false
+		}
+	}
+	if notLoadFlag {
+		t.Fatalf("failed to load module: %s", pkgImportPath)
+	}
+}