func TestOffset(t *testing.T) {
for _, expectedOffset := range []time.Duration{-time.Hour, time.Hour} {
if err := os.Setenv("COCKROACH_SIMULATED_OFFSET", expectedOffset.String()); err != nil {
t.Fatal(err)
}
envutil.ClearEnvCache()
initFakeTime()
lowerBound := time.Now().Add(expectedOffset)
offsetTime := Now()
upperBound := time.Now().Add(expectedOffset)
if offsetTime.Before(lowerBound) || offsetTime.After(upperBound) {
t.Errorf("expected offset time %s to be in the interval\n[%s,%s]", offsetTime, lowerBound, upperBound)
}
}
}
// TestReadEnvironmentVariables verifies that all environment variables are
// correctly parsed.
func TestReadEnvironmentVariables(t *testing.T) {
defer leaktest.AfterTest(t)()
resetEnvVar := func() {
// Reset all environment variables in case any were already set.
if err := os.Unsetenv("COCKROACH_LINEARIZABLE"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_MAX_OFFSET"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_METRICS_SAMPLE_INTERVAL"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_SCAN_INTERVAL"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_SCAN_MAX_IDLE_TIME"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_CONSISTENCY_CHECK_PANIC_ON_FAILURE"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_TIME_UNTIL_STORE_DEAD"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL"); err != nil {
t.Fatal(err)
}
if err := os.Unsetenv("COCKROACH_RESERVATIONS_ENABLED"); err != nil {
t.Fatal(err)
}
}
defer resetEnvVar()
// Makes sure no values are set when no environment variables are set.
ctx := MakeContext()
ctxExpected := MakeContext()
resetEnvVar()
ctx.readEnvironmentVariables()
if !reflect.DeepEqual(ctx, ctxExpected) {
t.Fatalf("actual context does not match expected:\nactual:%+v\nexpected:%+v", ctx, ctxExpected)
}
// Set all the environment variables to valid values and ensure they are set
// correctly.
if err := os.Setenv("COCKROACH_LINEARIZABLE", "true"); err != nil {
t.Fatal(err)
}
ctxExpected.Linearizable = true
if err := os.Setenv("COCKROACH_MAX_OFFSET", "1s"); err != nil {
t.Fatal(err)
}
ctxExpected.MaxOffset = time.Second
if err := os.Setenv("COCKROACH_METRICS_SAMPLE_INTERVAL", "1h10m"); err != nil {
t.Fatal(err)
}
ctxExpected.MetricsSampleInterval = time.Hour + time.Minute*10
if err := os.Setenv("COCKROACH_SCAN_INTERVAL", "48h"); err != nil {
t.Fatal(err)
}
ctxExpected.ScanInterval = time.Hour * 48
if err := os.Setenv("COCKROACH_SCAN_MAX_IDLE_TIME", "100ns"); err != nil {
t.Fatal(err)
}
ctxExpected.ScanMaxIdleTime = time.Nanosecond * 100
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL", "48h"); err != nil {
t.Fatal(err)
}
ctxExpected.ConsistencyCheckInterval = time.Hour * 48
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_PANIC_ON_FAILURE", "true"); err != nil {
t.Fatal(err)
}
ctxExpected.ConsistencyCheckPanicOnFailure = true
if err := os.Setenv("COCKROACH_TIME_UNTIL_STORE_DEAD", "10ms"); err != nil {
t.Fatal(err)
}
ctxExpected.TimeUntilStoreDead = time.Millisecond * 10
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL", "10ms"); err != nil {
t.Fatal(err)
}
ctxExpected.ConsistencyCheckInterval = time.Millisecond * 10
if err := os.Setenv("COCKROACH_RESERVATIONS_ENABLED", "false"); err != nil {
t.Fatal(err)
}
ctxExpected.ReservationsEnabled = false
envutil.ClearEnvCache()
ctx.readEnvironmentVariables()
if !reflect.DeepEqual(ctx, ctxExpected) {
t.Fatalf("actual context does not match expected:\nactual:%+v\nexpected:%+v", ctx, ctxExpected)
}
// Set all the environment variables to invalid values and test that the
// defaults are still set.
ctx = MakeContext()
ctxExpected = MakeContext()
if err := os.Setenv("COCKROACH_LINEARIZABLE", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_MAX_OFFSET", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_METRICS_SAMPLE_INTERVAL", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_SCAN_INTERVAL", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_SCAN_MAX_IDLE_TIME", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_PANIC_ON_FAILURE", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_TIME_UNTIL_STORE_DEAD", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_CONSISTENCY_CHECK_INTERVAL", "abcd"); err != nil {
t.Fatal(err)
}
if err := os.Setenv("COCKROACH_RESERVATIONS_ENABLED", "abcd"); err != nil {
t.Fatal(err)
}
envutil.ClearEnvCache()
ctx.readEnvironmentVariables()
if !reflect.DeepEqual(ctx, ctxExpected) {
t.Fatalf("actual context does not match expected:\nactual:%+v\nexpected:%+v", ctx, ctxExpected)
}
}