sfApexTestClass

@isTest
public class TriggerSlackListWebhookTest {

    @isTest
    static void testSendToSlack() {
        // Setup test data
        TriggerSlackListWebhook.Request testRequest = new TriggerSlackListWebhook.Request();
        testRequest.endpoint = 'https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX';
        testRequest.message = 'Hello, this is a test message!';
        testRequest.recordId = 'a1B2c3D4e5F6';

        // Create a list of requests
        List<TriggerSlackListWebhook.Request> requests = new List<TriggerSlackListWebhook.Request>{ testRequest };

        // Set mock callout class
        Test.setMock(HttpCalloutMock.class, new SlackCalloutMock());

        // Test the method
        Test.startTest();
        TriggerSlackListWebhook.sendToSlack(requests);
        Test.stopTest();

        // Additional assertions can be added here if needed
        // Example: assert on debug logs if the log handling is important
    }

    // Mock class implementing HttpCalloutMock
    private class SlackCalloutMock implements HttpCalloutMock {
        public HttpResponse respond(HttpRequest request) {
            // Verify request method and endpoint
            System.assertEquals('POST', request.getMethod());
            System.assertEquals('https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX', request.getEndpoint());

            // Verify the request body
            String expectedBody = '{"text": "Hello, this is a test message!", "blocks": [{"type": "section", "fields": [{"type": "mrkdwn", "text": "Record ID: a1B2c3D4e5F6"}, {"type": "mrkdwn", "text": "Message: Hello, this is a test message!"}]}]}';
            System.assertEquals(expectedBody, request.getBody());

            // Create a fake response
            HttpResponse response = new HttpResponse();
            response.setStatusCode(200);
            response.setBody('{"success": true}');
            return response;
        }
    }
}