Your task is to implement the following integration tests and enter the results in the quiz given at the end:

Test ID: 1

1. Test Description: Create a Post;
2. Prerequisite: An account called "testuser1" exists in the database;
3. Steps:
   • Login to "testuser1" account;
   • Enter "An example sentence" in the input field;
   • Click "Post";
   • Refresh the page;
   • Verify a post by user "testuser1" and content "An example sentence" exists on the page;

Test ID: 2

2. Test Description: Like a Post;
3. Prerequisite:
   • An account called "testuser1" exists in the database;
   • At least one post exists in the database;
4. Steps:
   • Login to "testuser1" account;
   • Read the number of likes for the latest post;
   • Click the like button for the latest post;
   • Read and verify that the number of likes of the latest post increased by 1;

Test ID: 3

1. Test Description: Posts can be liked only Once;
2. Prerequisite: 
   • An account called "testuser1" exists in the database;
   • At least one post exists in the database;
3. Steps:
   • Login to "testuser1" account;
   • Enter "An example post for testing likes" in the input field;
   • Click "Post";
   • Click the Like button for the newly created post;
   • Verify that the likes have increased by 1;
   • Click the Like button again;
   • Verify that the likes have decreased by 1;