test: add heatmap utils coverage

Author: bhavyajain0810

components/dashboard/heatmapUtils.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest';
+
+import { getIntensityColor } from './heatmapUtils';
+
+describe('getIntensityColor', () => {
+  it('returns the default gray class for intensity 0', () => {
+    expect(getIntensityColor(0)).toBe('bg-gray-200 dark:bg-[#161616]');
+  });
+
+  it('returns the correct class for intensity 1', () => {
+    expect(getIntensityColor(1)).toBe('bg-gray-400 dark:bg-zinc-700');
+  });
+
+  it('returns the correct class for intensity 2', () => {
+    expect(getIntensityColor(2)).toBe('bg-gray-500 dark:bg-zinc-500');
+  });
+
+  it('returns the correct class for intensity 3', () => {
+    expect(getIntensityColor(3)).toBe('bg-gray-700 dark:bg-zinc-300');
+  });
+
+  it('returns the correct class for intensity 4', () => {
+    expect(getIntensityColor(4)).toBe('bg-black dark:bg-white');
+  });
+
+  it('returns the default fallback class for intensity 99', () => {
+    expect(getIntensityColor(99)).toBe('bg-gray-200 dark:bg-[#161616]');
+  });
+
+  it('returns the default fallback class for intensity -1', () => {
+    expect(getIntensityColor(-1)).toBe('bg-gray-200 dark:bg-[#161616]');
+  });
+});