Add comprehensive unit tests for User Profile REST API controllers

[Copilot]

Adds unit test coverage for all implemented controller functions in the User Profile REST API.

Changes

• Test suite for controllers/user_controller.go: 9 tests covering all implemented handlers

  • HomePageHandler: HTML rendering validation
  • GetUsers: Returns all users
  • GetUser: Success and 404 cases
  • CreateUser: Success and invalid JSON handling
  • UpdateUser: Success, 404, and invalid JSON handling

• .gitignore: Standard Go patterns (binaries, test artifacts, IDE files)

Coverage

Achieves 100% statement coverage for the controllers package. All tests use Go's testing package and httptest for HTTP validation.

Example

func TestGetUserNotFound(t *testing.T) {
    resetUsers()
    router := setupTestRouter()
    router.GET("/api/v1/users/:id", GetUser)
    
    req, _ := http.NewRequest("GET", "/api/v1/users/999", nil)
    w := httptest.NewRecorder()
    router.ServeHTTP(w, req)
    
    if w.Code != http.StatusNotFound {
        t.Errorf("Expected status %d, got %d", http.StatusNotFound, w.Code)
    }
}

Note: DeleteUser is not implemented (TODO only), so no tests written for it.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• go.googlesource.com
  • Triggering command: /update-job-proxy /update-job-proxy (dns block)
  • Triggering command: /update-job-proxy /update-job-proxy ACCEPT /snap/bin/git test -e rustAsia_Global_Root_CA_G3.pem git est -m Testing completecat-file /usr/local/sbin/blob test -e tarfield_Class_2_CA.pem git /opt/go/bin/test FETCH_HEAD rtificates/mozil--wait /tmp/dependabot--t test (dns block)
• google.golang.org
  • Triggering command: /update-job-proxy /update-job-proxy (dns block)
  • Triggering command: /update-job-proxy /update-job-proxy ACCEPT /snap/bin/git test -e rustAsia_Global_Root_CA_G3.pem git est -m Testing completecat-file /usr/local/sbin/blob test -e tarfield_Class_2_CA.pem git /opt/go/bin/test FETCH_HEAD rtificates/mozil--wait /tmp/dependabot--t test (dns block)
• gopkg.in
  • Triggering command: /update-job-proxy /update-job-proxy (dns block)
  • Triggering command: /update-job-proxy /update-job-proxy ACCEPT /snap/bin/git test -e rustAsia_Global_Root_CA_G3.pem git est -m Testing completecat-file /usr/local/sbin/blob test -e tarfield_Class_2_CA.pem git /opt/go/bin/test FETCH_HEAD rtificates/mozil--wait /tmp/dependabot--t test (dns block)
• nullprogram.com
  • Triggering command: /update-job-proxy /update-job-proxy (dns block)
  • Triggering command: /update-job-proxy /update-job-proxy ACCEPT /snap/bin/git test -e rustAsia_Global_Root_CA_G3.pem git est -m Testing completecat-file /usr/local/sbin/blob test -e tarfield_Class_2_CA.pem git /opt/go/bin/test FETCH_HEAD rtificates/mozil--wait /tmp/dependabot--t test (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Add comprehensive unit tests for the User Profile REST API application. The tests should cover all controller functions, including:HomePageHandlerGetUsersGetUserCreateUserUpdateUserDeleteUser (Note: This function is currently not implemented - tests should only be written for existing, implemented functions)IMPORTANT REQUIREMENT: Only implement test cases for existing code. Do not implement any missing functionality or complete unfinished code. Focus solely on testing the current implemented functions.Acceptance Criteria:Each controller function has corresponding unit tests.Tests cover both successful and failure scenarios (e.g., user not found, invalid input).Use Go's standard testing package (testing) and, if needed, a test HTTP framework like httptest.Ensure tests are easy to run (e.g., via go test ./...).All tests must pass.Do not implement the DeleteUser function or any other missing functionality - only write tests for existing code.Additional Notes:Follow Go best practices for writing tests.Mock or isolate dependencies as needed.Place test files alongside the code (e.g., user_controller_test.go).If a function is not implemented (like DeleteUser), skip writing tests for it until the function is properly implemented in a separate issue.Source: GitHub Issue #1 - https://github.com/frye/go-users-demo/issues/1

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