@Test Annotation — Priority, Groups, Dependencies, and More

public class PriorityDemo {

    @Test  // priority = 0 (default) — runs FIRST
    public void testHomePage() {
        System.out.println("0. Home page loads");
    }

    @Test(priority = 1)
    public void testLogin() {
        System.out.println("1. Login works");
    }

    @Test(priority = 2)
    public void testDashboard() {
        System.out.println("2. Dashboard loads after login");
    }

    @Test(priority = 3)
    public void testLogout() {
        System.out.println("3. Logout works");
    }
}
// Output order: testHomePage → testLogin → testDashboard → testLogout

public class BankingTests {

    @Test(groups = {"smoke"})
    public void testLoginPageLoads() {
        // Quick check — runs in every build
    }

    @Test(groups = {"smoke", "regression"})
    public void testSuccessfulLogin() {
        // Core flow — part of both smoke and regression
    }

    @Test(groups = {"regression"})
    public void testLoginWithSpecialCharacters() {
        // Edge case — only runs in full regression
    }

    @Test(groups = {"regression"})
    public void testPasswordResetLink() {
        // Only runs in regression
    }

    @Test(groups = {"broken"}, enabled = false)
    public void testForgotPassword() {
        // Known broken feature — disabled until fix
    }
}

public class DependencyDemo {

    @Test
    public void testLogin() {
        System.out.println("Login test executing...");
        // If this FAILS → testDashboard and testTransfer are SKIPPED
    }

    @Test(dependsOnMethods = {"testLogin"})
    public void testDashboard() {
        System.out.println("Dashboard test — only runs if login passed");
    }

    @Test(dependsOnMethods = {"testLogin"})
    public void testTransfer() {
        System.out.println("Transfer test — only runs if login passed");
    }

    @Test(dependsOnMethods = {"testDashboard"})
    public void testTransactionHistory() {
        System.out.println("History — only runs if dashboard passed");
    }
}

@Test(timeOut = 5000)  // Must finish within 5 seconds
public void testDashboardLoadsQuickly() {
    driver.get("https://www.testerrank.com/banking/dashboard");
    wait.until(ExpectedConditions.visibilityOfElementLocated(
        By.id("balance")
    ));
    // If this takes more than 5 seconds → test FAILS
}

@Test(timeOut = 30000)  // 30 seconds for a complex flow
public void testFullTransferFlow() {
    // Login → Navigate → Fill form → Submit → Verify
}

// enabled — Temporarily disable a test without deleting it
@Test(enabled = false)
public void testBrokenFeature() {
    // Disabled until the bug is fixed
}

// description — Shows in reports, makes tests self-documenting
@Test(description = "Verify login succeeds with valid credentials")
public void testSuccessfulLogin() { }

// invocationCount — Run the same test multiple times (flakiness check)
@Test(invocationCount = 5)
public void testLoginReliability() {
    // Runs 5 times — if it fails even once, you have a flaky test
}

// invocationCount + threadPoolSize — Basic load test
@Test(invocationCount = 10, threadPoolSize = 3)
public void testConcurrentAccess() {
    // 10 runs across 3 threads simultaneously
}

// expectedExceptions — Test PASSES if the exception is thrown
@Test(expectedExceptions = ArithmeticException.class)
public void testDivisionByZero() {
    int result = 10 / 0;  // Throws ArithmeticException → test PASSES
}