view data tests

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

@@ -0,0 +1,95 @@
+import { describe, it, expect } from 'vitest';
+import { SponsorDashboardViewDataBuilder } from './SponsorDashboardViewDataBuilder';
+import type { SponsorDashboardDTO } from '@/lib/types/generated/SponsorDashboardDTO';
+
+describe('SponsorDashboardViewDataBuilder', () => {
+  describe('happy paths', () => {
+    it('should transform SponsorDashboardDTO to SponsorDashboardViewData correctly', () => {
+      const apiDto: SponsorDashboardDTO = {
+        sponsorName: 'Test Sponsor',
+        metrics: {
+          impressions: 5000,
+          viewers: 1000,
+          exposure: 500,
+        },
+        investment: {
+          activeSponsorships: 5,
+          totalSpent: 5000,
+        },
+        sponsorships: [],
+      };
+
+      const result = SponsorDashboardViewDataBuilder.build(apiDto);
+
+      expect(result.sponsorName).toBe('Test Sponsor');
+      expect(result.totalImpressions).toBe('5,000');
+      expect(result.totalInvestment).toBe('$5,000.00');
+      expect(result.activeSponsorships).toBe(5);
+      expect(result.metrics.impressionsChange).toBe(15);
+    });
+
+    it('should handle low impressions correctly', () => {
+      const apiDto: SponsorDashboardDTO = {
+        sponsorName: 'Test Sponsor',
+        metrics: {
+          impressions: 500,
+          viewers: 100,
+          exposure: 50,
+        },
+        investment: {
+          activeSponsorships: 1,
+          totalSpent: 1000,
+        },
+        sponsorships: [],
+      };
+
+      const result = SponsorDashboardViewDataBuilder.build(apiDto);
+
+      expect(result.metrics.impressionsChange).toBe(-5);
+    });
+  });
+
+  describe('data transformation', () => {
+    it('should preserve all DTO fields in the output', () => {
+      const apiDto: SponsorDashboardDTO = {
+        sponsorName: 'Test Sponsor',
+        metrics: {
+          impressions: 5000,
+          viewers: 1000,
+          exposure: 500,
+        },
+        investment: {
+          activeSponsorships: 5,
+          totalSpent: 5000,
+        },
+        sponsorships: [],
+      };
+
+      const result = SponsorDashboardViewDataBuilder.build(apiDto);
+
+      expect(result.sponsorName).toBe(apiDto.sponsorName);
+      expect(result.activeSponsorships).toBe(apiDto.investment.activeSponsorships);
+    });
+
+    it('should not modify the input DTO', () => {
+      const apiDto: SponsorDashboardDTO = {
+        sponsorName: 'Test Sponsor',
+        metrics: {
+          impressions: 5000,
+          viewers: 1000,
+          exposure: 500,
+        },
+        investment: {
+          activeSponsorships: 5,
+          totalSpent: 5000,
+        },
+        sponsorships: [],
+      };
+
+      const originalDto = JSON.parse(JSON.stringify(apiDto));
+      SponsorDashboardViewDataBuilder.build(apiDto);
+
+      expect(apiDto).toEqual(originalDto);
+    });
+  });
+});