snapshot of https://github.com/pion/webrtc.git (main, 2026-09-15; blobs > 131072B omitted)

internal/util/util_test.go

@@ -0,0 +1,44 @@
+// SPDX-FileCopyrightText: 2026 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package util //nolint: revive
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMathRandAlpha(t *testing.T) {
+	assert.Len(t, MathRandAlpha(10), 10, "MathRandAlpha should return 10 characters")
+	assert.Regexp(t, `^[a-zA-Z]+$`, MathRandAlpha(10), "MathRandAlpha should be Alpha only")
+}
+
+func TestMultiError(t *testing.T) {
+	rawErrs := []error{
+		errors.New("err1"), //nolint
+		errors.New("err2"), //nolint
+		errors.New("err3"), //nolint
+		errors.New("err4"), //nolint
+	}
+	errs := FlattenErrs([]error{
+		rawErrs[0],
+		nil,
+		rawErrs[1],
+		FlattenErrs([]error{
+			rawErrs[2],
+		}),
+	})
+	str := "err1\nerr2\nerr3"
+
+	assert.Equal(t, str, errs.Error(), "String representation doesn't match")
+
+	errIs, ok := errs.(multiError) //nolint:errorlint
+	assert.True(t, ok, "FlattenErrs returns non-multiError")
+	for i := range 3 {
+		assert.Truef(t, errIs.Is(rawErrs[i]), "Should contains this error '%v'", rawErrs[i])
+	}
+
+	assert.Falsef(t, errIs.Is(rawErrs[3]), "Should not contains this error '%v'", rawErrs[3])
+}