Add schema validation

Author: Hein

packages/common/src/db/schema/Table.ts

@@ -238,6 +238,12 @@ export class Table<Columns extends ColumnsType = ColumnsType> {
   }
 
   validate() {
+    if (this.options.name === '') {
+      throw new Error(
+        "It appears you are trying to create a new Schema with an array instead of an object. Passing in an object instead of an array into 'new Schema()' may resolve your issue."
+      );
+    }
+
     if (InvalidSQLCharacters.test(this.name)) {
       throw new Error(`Invalid characters in table name: ${this.name}`);
     }

packages/common/tests/db/schema/Schema.test.ts

@@ -2,14 +2,27 @@ import { describe, it, expect } from 'vitest';
 import { Schema } from '../../../src/db/schema/Schema';
 import { Table } from '../../../src/db/schema/Table';
 import { column, ColumnType } from '../../../src/db/schema/Column';
+import { Column } from '../../../lib';
 
 describe('Schema', () => {
+  it('should fail if array is passed and not a table object', () => {
+    const table1 = new Table({ name: column.text });
+    const table2 = new Table({ age: { type: ColumnType.INTEGER } });
+    const schema = new Schema([table1, table2]);
+    expect(() => schema.validate()).toThrow();
+  });
+
   it('should create a schema with an array of tables', () => {
-    const tables = [
-      new Table({ name: column.text, }),
-      new Table({ age: { type: ColumnType.INTEGER } })
-    ];
-    const schema = new Schema(tables);
+    const table1 = new Table({
+      name: 'table1',
+      columns: [new Column({ name: 'name', type: ColumnType.TEXT })]
+    });
+    const table2 = new Table({
+      name: 'table2',
+      columns: [new Column({ name: 'age', type: ColumnType.INTEGER })]
+    });
+    const schema = new Schema([table1, table2]);
+    expect(() => schema.validate()).not.toThrow();
 
     expect(schema.tables).toHaveLength(2);
     expect(schema.tables[0].columns[0].name).toBe('name');