refactor: run tests with pytest

hrp/internal/pytest/main.go

@@ -6,10 +6,18 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog/log"
+
+	"github.com/httprunner/httprunner/hrp/internal/builtin"
 )
 
 func RunPytest(args []string) error {
-	cmd := exec.Command("pytest", args...)
+	python3, err := builtin.EnsurePython3Venv("httprunner")
+	if err != nil {
+		return errors.Wrap(err, "ensure python venv failed")
+	}
+
+	args = append([]string{"-m", "httprunner", "run"}, args...)
+	cmd := exec.Command(python3, args...)
 	log.Info().Str("cmd", cmd.String()).Msg("run pytest")
 
 	output, err := cmd.CombinedOutput()