80dc5819d3
New dockertest has a totally different API and will require some serious refactoring. This will tide over until then by pinning the API version.
43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
package dockertest
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import (
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"errors"
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"fmt"
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"log"
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"time"
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)
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// SetupRedisContainer sets up a real Redis instance for testing purposes
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// using a Docker container. It returns the container ID and its IP address,
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// or makes the test fail on error.
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func SetupRedisContainer() (c ContainerID, ip string, port int, err error) {
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port = RandomPort()
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forward := fmt.Sprintf("%d:%d", port, 6379)
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if BindDockerToLocalhost != "" {
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forward = "127.0.0.1:" + forward
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}
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c, ip, err = SetupContainer(RedisImageName, port, 15*time.Second, func() (string, error) {
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return run("--name", GenerateContainerID(), "-d", "-P", "-p", forward, RedisImageName)
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})
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return
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}
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// ConnectToRedis starts a Redis image and passes the database url to the connector callback function.
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// The url will match the ip:port pattern (e.g. 123.123.123.123:6379)
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func ConnectToRedis(tries int, delay time.Duration, connector func(url string) bool) (c ContainerID, err error) {
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c, ip, port, err := SetupRedisContainer()
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if err != nil {
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return c, fmt.Errorf("Could not set up Redis container: %v", err)
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}
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for try := 0; try <= tries; try++ {
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time.Sleep(delay)
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url := fmt.Sprintf("%s:%d", ip, port)
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if connector(url) {
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return c, nil
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}
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log.Printf("Try %d failed. Retrying.", try)
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}
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return c, errors.New("Could not set up Redis container.")
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}
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