import { describe, it, expect, vi } from 'vitest';
describe('UpdateData', () => {
describe('WHERE Clause Validation', () => {
it('should require WHERE clause', () => {
const whereClause = '';
const isValid = Boolean(whereClause && whereClause.trim() !== '');
expect(isValid).toBe(false);
});
it('should reject whitespace-only WHERE clause', () => {
const whereClause = ' ';
const isValid = Boolean(whereClause && whereClause.trim() !== '');
expect(isValid).toBe(false);
});
it('should accept valid WHERE clause', () => {
const whereClause = 'id = 1';
const isValid = Boolean(whereClause && whereClause.trim() !== '');
expect(isValid).toBe(true);
});
it('should accept complex WHERE clause', () => {
const whereClause = "id = 1 AND status = 'active' OR created_at > '2024-01-01'";
const isValid = Boolean(whereClause && whereClause.trim() !== '');
expect(isValid).toBe(true);
});
});
describe('SET Clause Building', () => {
it('should build parameterized SET clause', () => {
const updates = { name: 'John', email: 'john@test.com' };
const setClause = Object.keys(updates)
.map((key, index) => `[${key}] = @update_${index}`)
.join(', ');
expect(setClause).toBe('[name] = @update_0, [email] = @update_1');
});
it('should handle single field update', () => {
const updates = { status: 'active' };
const setClause = Object.keys(updates)
.map((key, index) => `[${key}] = @update_${index}`)
.join(', ');
expect(setClause).toBe('[status] = @update_0');
});
it('should handle column names with spaces', () => {
const updates = { 'first name': 'John', 'last name': 'Doe' };
const setClause = Object.keys(updates)
.map((key, index) => `[${key}] = @update_${index}`)
.join(', ');
expect(setClause).toBe('[first name] = @update_0, [last name] = @update_1');
});
});
describe('Query Construction', () => {
it('should build complete UPDATE query', () => {
const tableName = 'users';
const updates = { name: 'John', status: 'active' };
const whereClause = 'id = 1';
const setClause = Object.keys(updates)
.map((key, index) => `[${key}] = @update_${index}`)
.join(', ');
const query = `UPDATE ${tableName} SET ${setClause} WHERE ${whereClause}`;
expect(query).toBe('UPDATE users SET [name] = @update_0, [status] = @update_1 WHERE id = 1');
});
it('should handle schema-qualified table names', () => {
const tableName = 'dbo.users';
const setClause = '[name] = @update_0';
const whereClause = 'id = 1';
const query = `UPDATE ${tableName} SET ${setClause} WHERE ${whereClause}`;
expect(query).toBe('UPDATE dbo.users SET [name] = @update_0 WHERE id = 1');
});
});
describe('Readonly Mode', () => {
it('should block operations in readonly mode', () => {
const isReadonlyMode = true;
if (isReadonlyMode) {
const result = {
success: false,
message: 'Operation denied: Database is in READONLY mode',
error: 'READONLY_MODE',
};
expect(result.success).toBe(false);
expect(result.error).toBe('READONLY_MODE');
}
});
});
describe('Response Format', () => {
it('should return rows affected count on success', () => {
const rowsAffected = 5;
const result = {
success: true,
message: `Update completed successfully. ${rowsAffected} row(s) affected`,
rowsAffected: rowsAffected,
};
expect(result.success).toBe(true);
expect(result.rowsAffected).toBe(5);
expect(result.message).toContain('5 row(s) affected');
});
it('should handle zero rows affected', () => {
const rowsAffected = 0;
const result = {
success: true,
message: `Update completed successfully. ${rowsAffected} row(s) affected`,
rowsAffected: rowsAffected,
};
expect(result.success).toBe(true);
expect(result.rowsAffected).toBe(0);
});
});
});
