feat: add har2case command

har2case/main_test.go

@@ -0,0 +1,24 @@
+package har2case
+
+import (
+	"log"
+	"os"
+	"testing"
+)
+
+var harPath string
+
+func TestMain(m *testing.M) {
+	harPath = "demo.har"
+
+	// run all tests
+	code := m.Run()
+	defer os.Exit(code)
+
+	// teardown
+}
+
+func TestGenJSON(t *testing.T) {
+	jsonPath, err := NewHAR(harPath).GenJSON()
+	log.Printf("jsonPath: %v, err: %v", jsonPath, err)
+}