Wednesday, 22 February 2023

Playwright: select multiple items from a select tag once

Using ‘page.selectOption()’ method, we can select multiple items from a select tag.

 

Example

String valuesToSelect[] = { "red", "green", "yellow" };
page.selectOption("select#favoriteColors", valuesToSelect);

 

Find the below working application.

 

multiselect.html

<html>

<body>

	<h1>Multi select demo</h1>


	<form onsubmit="return false;">
		<label for="colors">Choose a color:</label>
		<select name="colors" id="favoriteColors" multiple>
			<option value="red">Red</option>
			<option value="green">Green</option>
			<option value="yellow">Yellow</option>
			<option value="blue">blue</option>
		</select>
		<br><br>
		<input type="submit" value="Submit" onclick="display()">
	</form>

	<p id="result"></p>

	<script>
		function display() {
			let options = document.getElementById('favoriteColors').selectedOptions;
			let values = Array.from(options).map(({value}) => value);
			let selectedColors = values.join("-->");
			
			console.log(values)
			result.innerHTML = `<b>Selected colors: <br />${selectedColors}</b>`
		}
	</script>


</body>

</html>

 

FileUtil.java

package com.sample.app.util;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

public class FileUtil {
	
	public static String resourceAsString(String resourceName) throws IOException {
		ClassLoader classLoader = FileUtil.class.getClassLoader();
		URL url = classLoader.getResource(resourceName);
		if (url == null) {
			return null;
		}

		URLConnection urlConnection = url.openConnection();

		urlConnection.setUseCaches(false);

		try (InputStreamReader inputStreamReader = new InputStreamReader(urlConnection.getInputStream())) {
			char[] buffer = new char[1048];
			StringBuilder builder = new StringBuilder();

			int count = -1;
			while ((count = inputStreamReader.read(buffer, 0, buffer.length)) != -1) {
				builder.append(buffer, 0, count);
			}

			return builder.toString();
		}

	}
}

 

MultiSelectDemo.java

package com.sample.app.miscellaneous;

import java.io.File;
import java.io.IOException;

import com.microsoft.playwright.Browser;
import com.microsoft.playwright.BrowserType;
import com.microsoft.playwright.Page;
import com.microsoft.playwright.Playwright;
import com.sample.app.util.FileUtil;

public class MultiSelectDemo {
	public static void main(String[] args) throws IOException {
		try (Playwright playwright = Playwright.create()) {

			Browser browser = playwright.chromium()
					.launch(new BrowserType.LaunchOptions().setHeadless(false).setSlowMo(100));

			final String content = FileUtil.resourceAsString("miscellaneous" + File.separator + "multiSelect.html");

			Page page = browser.newPage();
			page.setContent(content);

			String valuesToSelect[] = { "red", "green", "yellow" };
			page.selectOption("select#favoriteColors", valuesToSelect);
			
			page.locator("input[type=\"submit\"]").click();
			
			String textContent = page.locator("id=result").textContent();
			System.out.println(textContent);
		}
	}
}

 

Output

Selected colors: red-->green-->yellow

 

References

https://playwright.dev/docs/api/class-page#page-select-option

 

 

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