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|
package executor
import (
"context"
"errors"
"fmt"
"testing"
"time"
)
// --- isRateLimitError tests ---
func TestIsRateLimitError_RateLimitMessage(t *testing.T) {
err := errors.New("claude exited with error: rate limit exceeded")
if !isRateLimitError(err) {
t.Error("want true for 'rate limit exceeded', got false")
}
}
func TestIsRateLimitError_TooManyRequests(t *testing.T) {
err := errors.New("too many requests to the API")
if !isRateLimitError(err) {
t.Error("want true for 'too many requests', got false")
}
}
func TestIsRateLimitError_HTTP429(t *testing.T) {
err := errors.New("API returned status 429")
if !isRateLimitError(err) {
t.Error("want true for '429', got false")
}
}
func TestIsRateLimitError_Overloaded(t *testing.T) {
err := errors.New("API overloaded, please retry later")
if !isRateLimitError(err) {
t.Error("want true for 'overloaded', got false")
}
}
func TestIsRateLimitError_NonRateLimitError(t *testing.T) {
err := errors.New("claude exited with error: exit status 1")
if isRateLimitError(err) {
t.Error("want false for non-rate-limit error, got true")
}
}
func TestIsRateLimitError_NilError(t *testing.T) {
if isRateLimitError(nil) {
t.Error("want false for nil error, got true")
}
}
// --- parseRetryAfter tests ---
func TestParseRetryAfter_RetryAfterSeconds(t *testing.T) {
msg := "rate limit exceeded, retry after 30 seconds"
d := parseRetryAfter(msg)
if d != 30*time.Second {
t.Errorf("want 30s, got %v", d)
}
}
func TestParseRetryAfter_RetryAfterHeader(t *testing.T) {
msg := "rate_limit_error: retry-after: 60"
d := parseRetryAfter(msg)
if d != 60*time.Second {
t.Errorf("want 60s, got %v", d)
}
}
func TestParseRetryAfter_NoRetryInfo(t *testing.T) {
msg := "rate limit exceeded"
d := parseRetryAfter(msg)
if d != 0 {
t.Errorf("want 0, got %v", d)
}
}
// --- runWithBackoff tests ---
func TestRunWithBackoff_SuccessOnFirstTry(t *testing.T) {
calls := 0
fn := func() error {
calls++
return nil
}
err := runWithBackoff(context.Background(), 3, time.Millisecond, fn)
if err != nil {
t.Errorf("want nil error, got %v", err)
}
if calls != 1 {
t.Errorf("want 1 call, got %d", calls)
}
}
func TestRunWithBackoff_RetriesOnRateLimit(t *testing.T) {
calls := 0
fn := func() error {
calls++
if calls < 3 {
return fmt.Errorf("rate limit exceeded")
}
return nil
}
err := runWithBackoff(context.Background(), 3, time.Millisecond, fn)
if err != nil {
t.Errorf("want nil error, got %v", err)
}
if calls != 3 {
t.Errorf("want 3 calls, got %d", calls)
}
}
func TestRunWithBackoff_GivesUpAfterMaxRetries(t *testing.T) {
calls := 0
rateLimitErr := fmt.Errorf("rate limit exceeded")
fn := func() error {
calls++
return rateLimitErr
}
err := runWithBackoff(context.Background(), 3, time.Millisecond, fn)
if err == nil {
t.Fatal("want error after max retries, got nil")
}
// maxRetries=3: 1 initial call + 3 retries = 4 total calls
if calls != 4 {
t.Errorf("want 4 calls (1 initial + 3 retries), got %d", calls)
}
}
func TestRunWithBackoff_DoesNotRetryNonRateLimitError(t *testing.T) {
calls := 0
fn := func() error {
calls++
return fmt.Errorf("permission denied")
}
err := runWithBackoff(context.Background(), 3, time.Millisecond, fn)
if err == nil {
t.Fatal("want error, got nil")
}
if calls != 1 {
t.Errorf("want 1 call (no retry for non-rate-limit), got %d", calls)
}
}
func TestRunWithBackoff_ContextCancellation(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
calls := 0
fn := func() error {
calls++
cancel() // cancel immediately after first call
return fmt.Errorf("rate limit exceeded")
}
start := time.Now()
err := runWithBackoff(ctx, 3, time.Second, fn) // large delay confirms ctx preempts wait
elapsed := time.Since(start)
if err == nil {
t.Fatal("want error on context cancellation, got nil")
}
if elapsed > 500*time.Millisecond {
t.Errorf("context cancellation too slow: %v (want < 500ms)", elapsed)
}
if calls != 1 {
t.Errorf("want 1 call before cancellation, got %d", calls)
}
}
|
