view data fixes

apps/website/lib/builders/view-data/DeleteMediaViewDataBuilder.test.ts

@@ -0,0 +1,122 @@
+import { describe, it, expect } from 'vitest';
+import { DeleteMediaViewDataBuilder } from './DeleteMediaViewDataBuilder';
+import type { DeleteMediaOutputDTO } from '@/lib/types/generated/DeleteMediaOutputDTO';
+
+describe('DeleteMediaViewDataBuilder', () => {
+  describe('happy paths', () => {
+    it('should transform successful deletion DTO to ViewData correctly', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: true,
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result).toEqual({
+        success: true,
+        error: undefined,
+      });
+    });
+
+    it('should handle deletion with error message', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: 'Failed to delete media',
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result).toEqual({
+        success: false,
+        error: 'Failed to delete media',
+      });
+    });
+
+    it('should handle deletion with only success field', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: true,
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result).toEqual({
+        success: true,
+        error: undefined,
+      });
+    });
+  });
+
+  describe('data transformation', () => {
+    it('should preserve all DTO fields in the output', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: 'Something went wrong',
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result.success).toBe(apiDto.success);
+      expect(result.error).toBe(apiDto.error);
+    });
+
+    it('should not modify the input DTO', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: 'Error',
+      };
+
+      const originalDto = { ...apiDto };
+      DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(apiDto).toEqual(originalDto);
+    });
+  });
+
+  describe('edge cases', () => {
+    it('should handle false success value', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: 'Error occurred',
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result.success).toBe(false);
+      expect(result.error).toBe('Error occurred');
+    });
+
+    it('should handle empty string error message', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: '',
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result.success).toBe(false);
+      expect(result.error).toBe('');
+    });
+
+    it('should handle very long error message', () => {
+      const longError = 'Error: ' + 'a'.repeat(1000);
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: longError,
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result.error).toBe(longError);
+    });
+
+    it('should handle special characters in error message', () => {
+      const apiDto: DeleteMediaOutputDTO = {
+        success: false,
+        error: 'Error: "Failed to delete media" (code: 500)',
+      };
+
+      const result = DeleteMediaViewDataBuilder.build(apiDto);
+
+      expect(result.error).toBe('Error: "Failed to delete media" (code: 500)');
+    });
+  });
+});