Configuration management in Selenium Java - Test Execution Trace

Test Overview

This test verifies that the Selenium WebDriver correctly loads configuration settings from a properties file and uses them to open a specified URL and check the page title.

Test Code - JUnit 5 with Selenium WebDriver

Selenium Java

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.junit.jupiter.api.*;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;

public class ConfigManagementTest {
    static WebDriver driver;
    static Properties config = new Properties();

    @BeforeAll
    public static void setup() throws IOException {
        FileInputStream fis = new FileInputStream("config.properties");
        config.load(fis);
        System.setProperty("webdriver.chrome.driver", config.getProperty("chrome.driver.path"));
        driver = new ChromeDriver();
    }

    @Test
    public void testOpenUrlAndCheckTitle() {
        String url = config.getProperty("app.url");
        String expectedTitle = config.getProperty("app.title");
        driver.get(url);
        Assertions.assertEquals(expectedTitle, driver.getTitle());
    }

    @AfterAll
    public static void teardown() {
        if (driver != null) {
            driver.quit();
        }
    }
}

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Load configuration from 'config.properties' file	Properties object contains keys: 'chrome.driver.path', 'app.url', 'app.title'	Check that properties file loaded without IOException	PASS
2	Set system property 'webdriver.chrome.driver' with path from config	System property set for ChromeDriver executable path	—	PASS
3	Initialize ChromeDriver instance	Chrome browser window opens	Driver instance is not null	PASS
4	Navigate to URL from configuration	Browser loads the page at configured URL	Page title is retrievable	PASS
5	Assert that page title matches expected title from config	Browser shows the loaded page	assertEquals(expectedTitle, actualTitle)	PASS
6	Close browser and quit driver	Browser window closes, driver quits	—	PASS

Failure Scenario

Failing Condition: Configuration file missing or incorrect path to ChromeDriver

Execution Trace Quiz - 3 Questions

What is the purpose of loading 'config.properties' in this test?

A To get configuration values like URL and driver path

B To store test results

C To initialize the Chrome browser

D To write logs during test execution

Key Result

Using external configuration files helps keep test data and environment settings separate from test code, making tests easier to maintain and adapt to different environments.

Practice

1. What is the main purpose of configuration management in Selenium Java testing?

easy

A. To separate test settings from test code for easier maintenance

B. To write test cases faster by skipping setup

C. To increase the number of test cases automatically

D. To reduce the number of test assertions

Solution

1. Step 1: Understand configuration management role

   It separates configuration data like URLs, credentials from the test logic.

2. Step 2: Benefits of separation

   This separation makes tests easier to maintain and adapt to different environments.

3. Final Answer:

   To separate test settings from test code for easier maintenance -> Option A

4. Quick Check:

   Configuration management = separation of settings and code [OK]

Hint: Think: settings outside code for easy updates [OK]

Common Mistakes:

• Confusing configuration management with test execution
• Thinking it speeds up writing tests directly
• Assuming it reduces assertions

2. Which of the following is a correct way to define a constant for a base URL in Selenium Java?

easy

A. final BASE_URL = https://example.com;

B. static String BASE_URL = 'https://example.com';

C. public static final String BASE_URL = "https://example.com";

D. const BASE_URL = "https://example.com";

Solution

1. Step 1: Recall Java constant syntax

   In Java, constants use 'public static final' with type and value in double quotes.

2. Step 2: Check each option

   public static final String BASE_URL = "https://example.com"; uses correct syntax; others have syntax errors or wrong keywords.

3. Final Answer:

   public static final String BASE_URL = "https://example.com"; -> Option C

4. Quick Check:

   Java constants = public static final + type + value [OK]

Hint: Remember Java constants need public static final [OK]

Common Mistakes:

• Using single quotes for strings in Java
• Omitting type declaration
• Using 'const' which is not Java keyword

3. Given the following code snippet, what will be printed?

public class Config {
    public static final String ENV = "staging";
    public static final String URL = ENV.equals("production") ? "https://prod.example.com" : "https://staging.example.com";

    public static void main(String[] args) {
        System.out.println(URL);
    }
}

medium

A. https://prod.example.com

B. null

C. Compilation error

D. https://staging.example.com

Solution

1. Step 1: Evaluate ENV value

   ENV is "staging", so ENV.equals("production") is false.

2. Step 2: Apply ternary operator

   Since condition is false, URL is assigned "https://staging.example.com".

3. Final Answer:

   https://staging.example.com -> Option D

4. Quick Check:

   Condition false -> staging URL printed [OK]

Hint: Check condition in ternary operator carefully [OK]

Common Mistakes:

• Assuming ENV equals production
• Confusing ternary true/false branches
• Expecting compilation error due to static final

4. Identify the error in this configuration code snippet:

public class Config {
    public static final String BASE_URL = https://example.com;
}

medium

A. BASE_URL should not be static

B. Missing double quotes around the URL string

C. final keyword is not allowed here

D. Class name should be lowercase

Solution

1. Step 1: Check string assignment syntax

   In Java, string literals must be enclosed in double quotes.

2. Step 2: Identify missing quotes

   The URL is not in quotes, causing a syntax error.

3. Final Answer:

   Missing double quotes around the URL string -> Option B

4. Quick Check:

   String literals need quotes in Java [OK]

Hint: Strings always need double quotes in Java [OK]

Common Mistakes:

• Forgetting quotes around string values
• Thinking static or final keywords cause error here
• Ignoring Java naming conventions (not error)

5. You want to run the same Selenium tests on different environments (dev, test, prod) without changing code. Which configuration management approach is best?

hard

A. Use external properties files to load environment-specific settings

B. Hardcode URLs in test methods and change before each run

C. Write separate test classes for each environment

D. Use random URLs in tests to cover all environments

Solution

1. Step 1: Understand maintainability needs

   Hardcoding or separate classes cause duplication and errors.

2. Step 2: Use external properties files

   Loading settings from files allows switching environments without code changes.

3. Final Answer:

   Use external properties files to load environment-specific settings -> Option A

4. Quick Check:

   External config files = flexible environment switching [OK]

Hint: Use external files for easy environment changes [OK]

Common Mistakes:

• Hardcoding URLs inside test code
• Creating duplicate test classes per environment
• Using random URLs which cause flaky tests