96 lines
2.7 KiB
Go
96 lines
2.7 KiB
Go
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/*
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Copyright 2026 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"context"
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"errors"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestEventuallySucceedsImmediately(t *testing.T) {
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calls := 0
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err := Eventually(context.Background(), t, time.Minute, "immediate success", func(context.Context) error {
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calls++
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return nil
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})
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require.NoError(t, err)
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assert.Equal(t, 1, calls)
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}
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func TestEventuallyRetriesUntilSuccess(t *testing.T) {
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calls := 0
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err := Eventually(context.Background(), t, time.Minute, "second attempt succeeds", func(context.Context) error {
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calls++
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if calls < 2 {
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return errors.New("not yet")
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}
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return nil
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})
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require.NoError(t, err)
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assert.Equal(t, 2, calls)
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}
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func TestEventuallyTimeoutWrapsLastError(t *testing.T) {
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cause := errors.New("still broken")
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err := Eventually(context.Background(), t, 10*time.Millisecond, "never succeeds", func(context.Context) error {
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return cause
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})
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require.Error(t, err)
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assert.ErrorIs(t, err, cause)
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assert.Contains(t, err.Error(), "never succeeds")
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}
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func TestEventuallyParentCancellation(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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cancel()
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err := Eventually(ctx, t, time.Minute, "canceled parent", func(context.Context) error {
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return errors.New("not yet")
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})
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require.Error(t, err)
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assert.ErrorIs(t, err, context.Canceled)
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}
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func TestEventuallyCondSeesOverallDeadline(t *testing.T) {
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err := Eventually(context.Background(), t, 10*time.Millisecond, "cond honors ctx", func(ctx context.Context) error {
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// a cooperative operation blocks only until the loop deadline
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<-ctx.Done()
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return ctx.Err()
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})
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require.Error(t, err)
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assert.ErrorIs(t, err, context.DeadlineExceeded)
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}
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func TestAttemptTimeoutCancelsHungAttempt(t *testing.T) {
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calls := 0
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err := Eventually(context.Background(), t, time.Minute, "hung attempt is canceled and retried",
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AttemptTimeout(10*time.Millisecond, func(ctx context.Context) error {
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calls++
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if calls < 2 {
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// simulate an operation that hangs until canceled
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<-ctx.Done()
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return ctx.Err()
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}
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return nil
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}))
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require.NoError(t, err)
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assert.Equal(t, 2, calls)
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}
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