diff --git a/plugins/sql-macros/index.test.ts b/plugins/sql-macros/index.test.ts
new file mode 100644
index 0000000..30388b0
--- /dev/null
+++ b/plugins/sql-macros/index.test.ts
@@ -0,0 +1,65 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { SqlMacrosPlugin } from './index'
+
+describe('SqlMacrosPlugin - Initialization', () => {
+    it('should initialize with correct plugin name and default options', () => {
+        const plugin = new SqlMacrosPlugin()
+        expect(plugin).toBeInstanceOf(SqlMacrosPlugin)
+        expect(plugin.name).toBe('starbasedb:sql-macros')
+        expect(plugin.preventSelectStar).toBeUndefined()
+    })
+
+    it('should configure preventSelectStar option correctly', () => {
+        const plugin = new SqlMacrosPlugin({ preventSelectStar: true })
+        expect(plugin.preventSelectStar).toBe(true)
+    })
+})
+
+describe('SqlMacrosPlugin - beforeQuery()', () => {
+    it('should return unchanged query when dataSource is not provided', async () => {
+        const plugin = new SqlMacrosPlugin({ preventSelectStar: true })
+        const sql = 'SELECT * FROM users'
+        const params = [1, 2]
+
+        const result = await plugin.beforeQuery({
+            sql,
+            params,
+            dataSource: undefined,
+        })
+
+        expect(result.sql).toBe(sql)
+        expect(result.params).toEqual(params)
+    })
+
+    it('should allow SELECT queries without wildcard', async () => {
+        const plugin = new SqlMacrosPlugin({ preventSelectStar: true })
+        plugin.config = { role: 'user' } as any
+
+        const mockDataSource: any = {}
+        const sql = 'SELECT id, name FROM users'
+
+        const result = await plugin.beforeQuery({
+            sql,
+            params: [],
+            dataSource: mockDataSource,
+        })
+
+        expect(result.sql).toBe(sql)
+    })
+
+    it('should permit SELECT * queries when executed by admin role', async () => {
+        const plugin = new SqlMacrosPlugin({ preventSelectStar: true })
+        plugin.config = { role: 'admin' } as any
+
+        const mockDataSource: any = {}
+        const sql = 'SELECT * FROM accounts'
+
+        const result = await plugin.beforeQuery({
+            sql,
+            params: [],
+            dataSource: mockDataSource,
+        })
+
+        expect(result.sql).toBe(sql)
+    })
+})