The page loading speed is too slow, how can the test efficiency be doubled?
1. Encounter a problem
When doing web automation testing, we often encounter some pages that load very slowly. There are many reasons why these pages load slowly:
◆ The page has a lot of resources to load, usually the home page;
◆ The page uses some external dependencies that are not very stable, such as calling immature CSS style libraries and js libraries;
◆ The company's server processing capacity is limited;
◆ The developer's code is not well written, etc.
2. Analyze the problem
If we want to perform automated testing, we first need to open the page through the get method of webdriver.
However, because the page loading time is too long, subsequent operations cannot be performed, and even errors are reported directly, which greatly affects the efficiency of automated testing.
When getting the actual results, it took a lot of time to wait for the home page to load correctly, although the later test cases passed.
However, a lot of time was wasted, and it took 26.5 seconds to run a test case.
3. Solve the problem
For some resources that load slowly, there is no need to wait until all the elements are loaded before performing element positioning during automated testing.
Set a timeout period. If the page is loaded for more than the specified time, the page is manually terminated, which is equivalent to clicking the X button of the browser by hand to stop the page from loading.
The code has 3 points:
1. Set the timeout time to 5 seconds
2. When the driver.get(url) is executed, if the page is loaded for less than 5 seconds, no error will be reported. If the page is loaded for more than 5 seconds, a timeout exception will be thrown
3. Use TimeoutException to catch timeout exception. When the timeout expires, execute the js designation to terminate the page loading.
Next, encapsulate the page get method:
Modify the original automation script:
4. Summarize the problem
No other code needs to be changed.
You only need to add IndexPage(driver).get() to the time-consuming place to load the page according to the set timeout time.
The new test time is 11.3 seconds, and the test efficiency has increased by nearly 60%.
Not to mention, I have to quickly integrate this solution into my resume.
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