feat: added tostr method (#4785)

* feat: added tostr method

* chore: refactor + unit tests

pkg/event/kind/webhook/listener.go

@@ -16,6 +16,7 @@ import (
 	thttp "github.com/kubeshop/testkube/pkg/http"
 	"github.com/kubeshop/testkube/pkg/log"
 	"github.com/kubeshop/testkube/pkg/utils"
+	"github.com/kubeshop/testkube/pkg/utils/text"
 )
 
 var _ common.Listener = (*WebhookListener)(nil)
@@ -170,6 +171,7 @@ func (l *WebhookListener) processTemplate(field, body string, event testkube.Eve
 
 	var tmpl *template.Template
 	tmpl, err := utils.NewTemplate(field).Funcs(template.FuncMap{
+		"tostr":                            text.ToStr,
 		"executionstatustostring":          testkube.ExecutionStatusString,
 		"testsuiteexecutionstatustostring": testkube.TestSuiteExecutionStatusString,
 	}).Parse(body)

pkg/utils/text/tostr.go

@@ -0,0 +1,7 @@
+package text
+
+import "fmt"
+
+func ToStr(in any) string {
+	return fmt.Sprintf("%v", in)
+}

pkg/utils/text/tostr_test.go

@@ -0,0 +1,44 @@
+package text
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type stringerTestImpl struct {
+	name string
+}
+
+func (tt stringerTestImpl) String() string {
+	return tt.name
+}
+
+func TestToStr(t *testing.T) {
+
+	t.Run("converts stringer to string", func(t *testing.T) {
+		test := stringerTestImpl{name: "test"}
+		assert.Equal(t, "test", ToStr(test))
+	})
+
+	t.Run("converts int to str", func(t *testing.T) {
+		test := 1
+		assert.Equal(t, "1", ToStr(test))
+	})
+
+	t.Run("converts float to str", func(t *testing.T) {
+		test := 1.1
+		assert.Equal(t, "1.1", ToStr(test))
+	})
+
+	t.Run("converts bool to str", func(t *testing.T) {
+		test := true
+		assert.Equal(t, "true", ToStr(test))
+	})
+
+	t.Run("converts nil to str", func(t *testing.T) {
+		var test *string
+		assert.Equal(t, "<nil>", ToStr(test))
+	})
+
+}