refactor: sql-tools (#19717)

server/src/sql-tools/comparers/constraint.comparer.spec.ts

@@ -0,0 +1,63 @@
+import { compareConstraints } from 'src/sql-tools/comparers/constraint.comparer';
+import { ConstraintType, DatabaseConstraint, Reason } from 'src/sql-tools/types';
+import { describe, expect, it } from 'vitest';
+
+const testConstraint: DatabaseConstraint = {
+  type: ConstraintType.PRIMARY_KEY,
+  name: 'test',
+  tableName: 'table1',
+  columnNames: ['column1'],
+  synchronize: true,
+};
+
+describe('compareConstraints', () => {
+  describe('onExtra', () => {
+    it('should work', () => {
+      expect(compareConstraints.onExtra(testConstraint)).toEqual([
+        {
+          type: 'ConstraintDrop',
+          constraintName: 'test',
+          tableName: 'table1',
+          reason: Reason.MissingInSource,
+        },
+      ]);
+    });
+  });
+
+  describe('onMissing', () => {
+    it('should work', () => {
+      expect(compareConstraints.onMissing(testConstraint)).toEqual([
+        {
+          type: 'ConstraintAdd',
+          constraint: testConstraint,
+          reason: Reason.MissingInTarget,
+        },
+      ]);
+    });
+  });
+
+  describe('onCompare', () => {
+    it('should work', () => {
+      expect(compareConstraints.onCompare(testConstraint, testConstraint)).toEqual([]);
+    });
+
+    it('should detect a change in type', () => {
+      const source: DatabaseConstraint = { ...testConstraint };
+      const target: DatabaseConstraint = { ...testConstraint, columnNames: ['column1', 'column2'] };
+      const reason = 'Primary key columns are different: (column1 vs column1,column2)';
+      expect(compareConstraints.onCompare(source, target)).toEqual([
+        {
+          constraintName: 'test',
+          tableName: 'table1',
+          type: 'ConstraintDrop',
+          reason,
+        },
+        {
+          type: 'ConstraintAdd',
+          constraint: source,
+          reason,
+        },
+      ]);
+    });
+  });
+});