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How to use ForLog method of wait Package

Best Testcontainers-go code snippet using wait.ForLog

magefile_sakila.go

Source:magefile_sakila.go

...17const startupTimeout = time.Minute * 518// containers is the set of database server containers required for19// integration testing.20//21// NOTE: The wait.ForLog mechanism is probably not fully correct for any of the22//23//	containers (e.g. the string may appear multiple times in the log output),24//	thus the containers may not have started fully when WaitingFor completes.25var containers = []testcontainers.ContainerRequest{26	{27		Image:        "sakiladb/sqlserver:2017-CU19",28		Name:         "sakiladb-sqlserver-2017",29		ExposedPorts: []string{"14337:1433"},30		WaitingFor:   wait.ForLog("Changed database context to 'sakila'.").WithStartupTimeout(startupTimeout),31	},32	{33		Image:        "sakiladb/postgres:9",34		Name:         "sakiladb-postgres-9",35		ExposedPorts: []string{"54329:5432"},36		WaitingFor:   wait.ForLog("PostgreSQL init process complete; ready for start up.").WithStartupTimeout(startupTimeout),37	},38	{39		Image:        "sakiladb/postgres:10",40		Name:         "sakiladb-postgres-10",41		ExposedPorts: []string{"54330:5432"},42		WaitingFor:   wait.ForLog("PostgreSQL init process complete; ready for start up.").WithStartupTimeout(startupTimeout),43	},44	{45		Image:        "sakiladb/postgres:11",46		Name:         "sakiladb-postgres-11",47		ExposedPorts: []string{"54331:5432"},48		WaitingFor:   wait.ForLog("PostgreSQL init process complete; ready for start up.").WithStartupTimeout(startupTimeout),49	},50	{51		Image:        "sakiladb/postgres:12",52		Name:         "sakiladb-postgres-12",53		ExposedPorts: []string{"54332:5432"},54		WaitingFor:   wait.ForLog("PostgreSQL init process complete; ready for start up.").WithStartupTimeout(startupTimeout),55	},56	{57		Image:        "sakiladb/mysql:5.6",58		Name:         "sakiladb-mysql-5.6",59		ExposedPorts: []string{"33066:3306"},60		WaitingFor:   wait.ForLog("[Note] mysqld: ready for connections.").WithStartupTimeout(startupTimeout),61	},62	{63		Image:        "sakiladb/mysql:5.7",64		Name:         "sakiladb-mysql-5.7",65		ExposedPorts: []string{"33067:3306"},66		WaitingFor:   wait.ForLog("[Note] mysqld: ready for connections.").WithStartupTimeout(startupTimeout),67	},68	{69		Image:        "sakiladb/mysql:8",70		Name:         "sakiladb-mysql-8",71		ExposedPorts: []string{"33068:3306"},72		WaitingFor:   wait.ForLog("[Server] /usr/sbin/mysqld: ready for connections.").WithStartupTimeout(startupTimeout),73	},74}75// StartAll starts all the sakila database server containers locally.76// Use RemoveAll to stop & remove the containers.77func (Sakila) StartAll() error {78	const envarInfo = `export SQ_TEST_SRC__SAKILA_MY56=localhost:3306679export SQ_TEST_SRC__SAKILA_MY57=localhost:3306780export SQ_TEST_SRC__SAKILA_MY8=localhost:3306881export SQ_TEST_SRC__SAKILA_PG9=localhost:5432982export SQ_TEST_SRC__SAKILA_PG10=localhost:5433083export SQ_TEST_SRC__SAKILA_PG11=localhost:5433184export SQ_TEST_SRC__SAKILA_PG12=localhost:5433285export SQ_TEST_SRC__SAKILA_MS17=localhost:14337`86	fmt.Println("Starting all containers...")...

logstrategy.go

Source:logstrategy.go

...46	}47	ws.Occurrence = o48	return ws49}50// ForLog is the default construction for the fluid interface.51//52// For Example:53// wait.54//     ForLog("some text").55//     WithPollInterval(1 * time.Second)56func ForLog(log string) *LogStrategy {57	return NewLogStrategy(log)58}59// WaitUntilReady implements Strategy.WaitUntilReady60func (ws *LogStrategy) WaitUntilReady(ctx context.Context, target wait.StrategyTarget) (err error) {61	// limit context to startupTimeout62	ctx, cancelContext := context.WithTimeout(ctx, ws.startupTimeout)63	defer cancelContext()64LOOP:65	for {66		select {67		case <-ctx.Done():68			return ctx.Err()69		default:70			reader, err := target.Logs(ctx)...

testcontainer_test.go

Source:testcontainer_test.go

...9	ctx := context.Background()10	req := testcontainers.ContainerRequest{11		Image:        "redis:latest",12		ExposedPorts: []string{"6379/tcp"},13		WaitingFor:   wait.ForLog("Ready to accept connections"),14	}15	req2 := testcontainers.ContainerRequest{16		Image:        "redis:latest",17		ExposedPorts: []string{"6380/tcp"},18		WaitingFor:   wait.ForLog("Ready to accept connections"),19	}20	redisC, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{21		ContainerRequest: req,22		Started:          true,23	})24	redisC2, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{25		ContainerRequest: req2,26		Started:          true,27	})28	if err != nil {29		t.Error(err)30	}31	defer redisC.Terminate(ctx)32	defer redisC2.Terminate(ctx)...

ForLog

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4	w.ForLog(1)5}6import (7func main() {8	fmt.Println("Hello, playground")9	w.ForLog(1)10}11import (12func main() {13	fmt.Println("Hello, playground")14	w.ForLog(1)15}16import (17func main() {18	fmt.Println("Hello, playground")19	w.ForLog(1)20}21import (22func main() {23	fmt.Println("Hello, playground")24	w.ForLog(1)25}26import (27func main() {28	fmt.Println("Hello, playground")29	w.ForLog(1)30}31import (32func main() {33	fmt.Println("Hello, playground")34	w.ForLog(1)35}36import (37func main() {38	fmt.Println("Hello, playground")39	w.ForLog(1)40}41import (42func main() {43	fmt.Println("Hello, playground")44	w.ForLog(1)45}46import (47func main() {48	fmt.Println("Hello, playground")

ForLog

Using AI Code Generation

1import (2func main() {3    w := wait.New()4    w.ForLog(time.Second, func() {5        log.Println("I'm logging after 1 second")6    })7    w.Wait()8}

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