add upload unittest

hrp/tests/test.env

@@ -0,0 +1,4 @@
+UserName=test
+Password=654321
+PROJECT_KEY=AAABBBCCC
+content_type=application/json; charset=UTF-8

hrp/tests/upload_test.go

@@ -0,0 +1,38 @@
+package tests
+
+import (
+	"testing"
+
+	"github.com/httprunner/httprunner/v4/hrp"
+)
+
+func TestCaseUploadFile(t *testing.T) {
+	testcase := &hrp.TestCase{
+		Config: hrp.NewConfig("test upload file to httpbin").
+			SetBaseURL("https://httpbin.org"),
+		TestSteps: []hrp.IStep{
+			hrp.NewStep("upload file").
+				WithVariables(map[string]interface{}{
+					"m_encoder": "${multipart_encoder($m_upload)}",
+					"m_upload":  map[string]interface{}{"file": "test.env"},
+				}).
+				POST("/post").
+				WithHeaders(map[string]string{"Content-Type": "${multipart_content_type($m_encoder)}"}).
+				WithBody("$m_encoder").
+				Validate().
+				AssertEqual("status_code", 200, "check status code").
+				AssertStartsWith("body.files.file", "UserName=test", "check uploaded file"),
+			hrp.NewStep("upload file with keyword").
+				POST("/post").
+				WithUpload(map[string]interface{}{"file": "test.env"}).
+				Validate().
+				AssertEqual("status_code", 200, "check status code").
+				AssertStartsWith("body.files.file", "UserName=test", "check uploaded file"),
+		},
+	}
+
+	err := hrp.NewRunner(t).Run(testcase)
+	if err != nil {
+		t.Fatalf("run testcase error: %v", err)
+	}
+}