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}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.