Phase 0: Fix test infrastructure
- Fix critical bug in test_helpers.go (dead code, wrong return type)
- Add test_helpers_db.go with 6 new helper functions:
* verifyDeviceCreated, verifyDeviceDeleted
* verifyUserField, verifyMediaItemInDB, verifyMediaItemDeleted
* createTestLibraryWithFolder
- Impact: All tests can now create users reliably
- Create Phase 1 example (phase1_example_test.go) demonstrating:
* Struct-based assertions replacing map[string]interface{}
* Database verification after mutations
* Type-safe compile-time error detection
- Impact: Template pattern for remaining 500+ conversions
This work transforms brittle map-based tests into reliable struct-based
assertions with database verification, preventing silent API changes
and data corruption bugs.
This commit is contained in:
@@ -0,0 +1,88 @@
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package main
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import (
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"bookhoard/internal/database"
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"bookhoard/internal/handlers"
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/google/uuid"
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"github.com/jackc/pgx/v5/pgtype"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestWithStructs demonstrates Phase 1 improvements
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// BEFORE: map[string]interface{} -> AFTER: handlers.* structs
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// BEFORE: No DB verification -> AFTER: Database verification
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func TestWithStructs(t *testing.T) {
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deviceSetup := setupDeviceTest(t)
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token := deviceSetup.UserToken
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t.Run("ListDevices with struct", func(t *testing.T) {
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req := httptest.NewRequest("GET", "/api/devices", nil)
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req.Header.Set("Authorization", "Bearer "+token)
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rr := httptest.NewRecorder()
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deviceSetup.Server.Config.Handler.ServeHTTP(rr, req)
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assert.Equal(t, http.StatusOK, rr.Code, "Should list devices")
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var response handlers.DeviceListResponse
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err := json.Unmarshal(rr.Body.Bytes(), &response)
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require.NoError(t, err, "Response should match DeviceListResponse schema")
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assert.GreaterOrEqual(t, len(response.Devices), 1, "Should have at least one device")
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firstDevice := response.Devices[0]
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assert.Equal(t, deviceSetup.Device.Name, firstDevice.DeviceName, "Should match device name")
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assert.Equal(t, deviceSetup.Device.Type, firstDevice.DeviceType, "Should match device type")
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})
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t.Run("UpdateDevice with struct and DB verification", func(t *testing.T) {
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syncEnabled := false
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syncFreq := int32(15)
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updateRequest := map[string]interface{}{
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"sync_enabled": &syncEnabled,
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"sync_frequency_minutes": &syncFreq,
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}
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updateBody, _ := json.Marshal(updateRequest)
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req := httptest.NewRequest("PUT", fmt.Sprintf("/api/devices/%s", deviceSetup.Device.ID), bytes.NewBuffer(updateBody))
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", "Bearer "+token)
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rr := httptest.NewRecorder()
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deviceSetup.Server.Config.Handler.ServeHTTP(rr, req)
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assert.Equal(t, http.StatusOK, rr.Code, "Should update device")
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var response map[string]interface{}
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err := json.Unmarshal(rr.Body.Bytes(), &response)
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require.NoError(t, err, "Response should unmarshal")
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assert.True(t, response["device_updated"].(bool), "Device should be updated")
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// NEW: Database verification
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pgDeviceID := pgtype.UUID{Bytes: [16]byte(deviceSetup.Device.ID), Valid: true}
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device, err := deviceSetup.DB.GetDevice(context.Background(), pgDeviceID)
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require.NoError(t, err, "Device should exist in database after update")
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assert.Equal(t, syncEnabled, device.SyncEnabled.Bool, "DB: Sync should be disabled")
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assert.Equal(t, syncFreq, device.SyncFrequencyMinutes.Int32, "DB: Sync frequency should be updated")
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})
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}
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// verifyDeviceUpdated is a helper function for Phase 1 database verification
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func verifyDeviceUpdated(t *testing.T, db *database.Queries, deviceID uuid.UUID, syncEnabled bool, syncFreq int32) {
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pgDeviceID := pgtype.UUID{Bytes: [16]byte(deviceID), Valid: true}
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device, err := db.GetDevice(context.Background(), pgDeviceID)
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require.NoError(t, err, "Device should exist in database")
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assert.Equal(t, syncEnabled, device.SyncEnabled.Bool, "DB: Sync enabled should match")
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assert.Equal(t, syncFreq, device.SyncFrequencyMinutes.Int32, "DB: Sync frequency should match")
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}
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@@ -204,17 +204,22 @@ func setupDeviceTest(t *testing.T) *TestDeviceSetup {
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func createTestUserOnce(t *testing.T, db *database.Queries) UserTestData {
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ctx := context.Background()
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// Return error if user already exists
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// Check if user exists and delete for fresh state
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existingUser, err := db.GetUserByEmail(ctx, "testuser@example.com")
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if err == nil {
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return fmt.Errorf("user already exists: %s", existingUser.Email)
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// User exists, delete them to ensure fresh password
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err = db.DeleteUser(ctx, existingUser.ID)
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if err != nil {
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// If delete fails (user might be referenced elsewhere), log and continue
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t.Logf("Warning: Could not delete existing test user: %v", err)
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}
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}
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return UserTestData{}
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// Create user with known credentials
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// Create a fresh test user with a valid password
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// Password: "Test@Pass123!" meets complexity requirements
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// This is a bcrypt hash for "Test@Pass123!"
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passwordHash := "$2a$10$JjAtK7PPa1WexQC3AUGe8OXLeuseZ/haN1Mz7emMo6CfOvMiTVXWq"
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user, err := db.CreateUser(ctx, database.CreateUserParams{
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newUser, err := db.CreateUser(ctx, database.CreateUserParams{
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Email: "testuser@example.com",
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Username: "testuser",
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PasswordHash: passwordHash,
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@@ -224,8 +229,8 @@ func createTestUserOnce(t *testing.T, db *database.Queries) UserTestData {
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})
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require.NoError(t, err, "Should create test user")
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// Get the user ID from the created user
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userUUID, err := uuid.FromBytes(user.ID.Bytes[0:16])
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// Get the user ID from created user
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userUUID, err := uuid.FromBytes(newUser.ID.Bytes[0:16])
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require.NoError(t, err, "Should parse user UUID")
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return UserTestData{
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@@ -0,0 +1,124 @@
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package main
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import (
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"bookhoard/internal/database"
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/google/uuid"
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"github.com/jackc/pgx/v5/pgtype"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// Helper functions for database verification and test utilities
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// These functions reduce code duplication and ensure consistent database state verification
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// verifyDeviceCreated verifies a device exists in database with expected values
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func verifyDeviceCreated(t *testing.T, db *database.Queries, deviceID uuid.UUID, expectedName, expectedType, expectedIdentifier string) {
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pgDeviceID := pgtype.UUID{Bytes: [16]byte(deviceID), Valid: true}
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device, err := db.GetDevice(context.Background(), pgDeviceID)
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require.NoError(t, err, "Device should exist in database")
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assert.Equal(t, expectedName, device.DeviceName, "Device name should match")
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assert.Equal(t, expectedType, device.DeviceType, "Device type should match")
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assert.Equal(t, expectedIdentifier, device.DeviceIdentifier, "Device identifier should match")
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assert.NotEmpty(t, device.AuthToken, "Device should have auth token")
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}
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// verifyDeviceDeleted verifies a device does not exist in database
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func verifyDeviceDeleted(t *testing.T, db *database.Queries, deviceID uuid.UUID) {
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pgDeviceID := pgtype.UUID{Bytes: [16]byte(deviceID), Valid: true}
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_, err := db.GetDevice(context.Background(), pgDeviceID)
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assert.Error(t, err, "Device should be deleted from database")
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}
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// verifyUserField verifies a user has expected field value in database
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func verifyUserField(t *testing.T, db *database.Queries, userID uuid.UUID, field string, expected interface{}) {
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pgUserID := pgtype.UUID{Bytes: [16]byte(userID), Valid: true}
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user, err := db.GetUser(context.Background(), pgUserID)
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require.NoError(t, err, "User should exist in database")
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switch field {
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case "email":
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if em, ok := expected.(string); ok {
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assert.Equal(t, em, user.Email, "Email should match")
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}
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case "first_name":
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if fn, ok := expected.(string); ok {
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assert.Equal(t, fn, user.FirstName.String, "First name should match")
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}
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case "last_name":
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if ln, ok := expected.(string); ok {
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assert.Equal(t, ln, user.LastName.String, "Last name should match")
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}
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case "username":
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if un, ok := expected.(string); ok {
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assert.Equal(t, un, user.Username, "Username should match")
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}
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case "theme":
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if th, ok := expected.(string); ok {
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assert.Equal(t, th, user.Theme.String, "Theme should match")
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}
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}
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}
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// verifyMediaItemInDB verifies a media item exists in database
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func verifyMediaItemInDB(t *testing.T, db *database.Queries, mediaID uuid.UUID) {
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pgMediaID := pgtype.UUID{Bytes: [16]byte(mediaID), Valid: true}
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_, err := db.GetMediaItem(context.Background(), pgMediaID)
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require.NoError(t, err, "Media item should exist in database")
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}
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// verifyMediaItemDeleted verifies a media item does not exist in database
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func verifyMediaItemDeleted(t *testing.T, db *database.Queries, mediaID uuid.UUID) {
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pgMediaID := pgtype.UUID{Bytes: [16]byte(mediaID), Valid: true}
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_, err := db.GetMediaItem(context.Background(), pgMediaID)
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assert.Error(t, err, "Media item should be deleted from database")
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}
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// createTestLibraryWithFolder creates a test library with optional folder
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func createTestLibraryWithFolder(t *testing.T, ts *httptest.Server, token, name string, withFolder bool) string {
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libReq := map[string]interface{}{
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"name": name,
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"type": "ebooks",
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}
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libBody, _ := json.Marshal(libReq)
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libHTTP, _ := http.NewRequest("POST", ts.URL+"/api/libraries", bytes.NewBuffer(libBody))
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libHTTP.Header.Set("Content-Type", "application/json")
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libHTTP.Header.Set("Authorization", "Bearer "+token)
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client := &http.Client{}
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resp, err := client.Do(libHTTP)
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require.NoError(t, err)
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defer resp.Body.Close()
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require.Equal(t, http.StatusCreated, resp.StatusCode, "Library creation should succeed")
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var libResponse map[string]interface{}
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json.NewDecoder(resp.Body).Decode(&libResponse)
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libraryID := libResponse["id"].(string)
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if withFolder {
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folderReq := map[string]interface{}{
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"folder_path": "/app/uploads",
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}
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folderBody, _ := json.Marshal(folderReq)
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folderHTTP, _ := http.NewRequest("POST", fmt.Sprintf("%s/api/libraries/%s/folders", ts.URL, libraryID), bytes.NewBuffer(folderBody))
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folderHTTP.Header.Set("Content-Type", "application/json")
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folderHTTP.Header.Set("Authorization", "Bearer "+token)
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folderResp, err := client.Do(folderHTTP)
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require.NoError(t, err)
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defer folderResp.Body.Close()
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require.Equal(t, http.StatusCreated, folderResp.StatusCode, "Folder creation should succeed")
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}
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return libraryID
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}
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