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150 lines
3.6 KiB
150 lines
3.6 KiB
package testutil
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import (
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"fmt"
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"testing"
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"time"
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)
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// AssertEventually retries an assertion until it passes or times out
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func AssertEventually(t *testing.T, assertion func() error, timeout time.Duration, interval time.Duration, msgAndArgs ...interface{}) {
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t.Helper()
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deadline := time.Now().Add(timeout)
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var lastErr error
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for time.Now().Before(deadline) {
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if err := assertion(); err == nil {
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return // Success
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} else {
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lastErr = err
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}
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time.Sleep(interval)
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}
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// Format the failure message
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "assertion failed"
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}
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t.Fatalf("%s after %v: %v", msg, timeout, lastErr)
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}
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// AssertNoError fails the test if err is not nil
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func AssertNoError(t *testing.T, err error, msgAndArgs ...interface{}) {
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t.Helper()
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if err != nil {
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "unexpected error"
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}
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t.Fatalf("%s: %v", msg, err)
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}
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}
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// AssertError fails the test if err is nil
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func AssertError(t *testing.T, err error, msgAndArgs ...interface{}) {
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t.Helper()
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if err == nil {
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "expected error but got nil"
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}
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t.Fatal(msg)
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}
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}
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// AssertEqual fails the test if expected != actual
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func AssertEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) {
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t.Helper()
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if expected != actual {
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "values not equal"
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}
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t.Fatalf("%s: expected %v, got %v", msg, expected, actual)
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}
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}
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// AssertNotEqual fails the test if expected == actual
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func AssertNotEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) {
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t.Helper()
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if expected == actual {
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "values should not be equal"
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}
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t.Fatalf("%s: both values are %v", msg, expected)
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}
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}
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// AssertGreaterThan fails the test if actual <= expected
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func AssertGreaterThan(t *testing.T, expected, actual int, msgAndArgs ...interface{}) {
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t.Helper()
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if actual <= expected {
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "value not greater than expected"
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}
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t.Fatalf("%s: expected > %d, got %d", msg, expected, actual)
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}
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}
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// AssertContains fails the test if slice doesn't contain item
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func AssertContains(t *testing.T, slice []string, item string, msgAndArgs ...interface{}) {
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t.Helper()
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for _, s := range slice {
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if s == item {
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return // Found it
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}
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}
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var msg string
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if len(msgAndArgs) > 0 {
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if format, ok := msgAndArgs[0].(string); ok {
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msg = fmt.Sprintf(format, msgAndArgs[1:]...)
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} else {
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msg = fmt.Sprint(msgAndArgs...)
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}
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} else {
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msg = "item not found in slice"
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}
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t.Fatalf("%s: %q not found in %v", msg, item, slice)
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}
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