Start adding test coverage

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-dist
+dist
+coverage

package.json

@@ -7,7 +7,9 @@
     "build": "webpack",
     "start": "npm run build -- --stats=errors-only && electron dist",
     "start-local": "npm run build -- --stats=errors-only && electron dist --control.address=http://localhost:4444 --control.username=streamwall --control.password=local-dev",
-    "test": "jest"
+    "test": "jest",
+    "test-unit": "jest --testPathIgnorePatterns=src/node/server.test.js",
+    "test-unit-coverage": "jest --coverage --testPathIgnorePatterns=src/node/server.test.js"
   },
   "author": "Max Goodhart <c@chromakode.com>",
   "license": "MIT",

src/geometry.test.js

@@ -1,4 +1,4 @@
-import { boxesFromViewContentMap } from './geometry'
+import { boxesFromViewContentMap, idxInBox, idxToCoords } from './geometry'
 
 function example([text]) {
   return text
@@ -89,3 +89,60 @@ describe.each([
     expect(result).toStrictEqual(expected)
   })
 })
+
+describe('idxToCoords', () => {
+  it('should convert index to coordinates correctly', () => {
+    const gridCount = 5
+    const idx = 12
+    const result = idxToCoords(gridCount, idx)
+    expect(result).toEqual({ x: 2, y: 2 })
+  })
+
+  it('should support the top-left corner', () => {
+    const gridCount = 5
+    const idx = 0
+    const result = idxToCoords(gridCount, idx)
+    expect(result).toEqual({ x: 0, y: 0 })
+  })
+
+  it('should support the top-right corner', () => {
+    const gridCount = 5
+    const idx = 4
+    const result = idxToCoords(gridCount, idx)
+    expect(result).toEqual({ x: 4, y: 0 })
+  })
+
+  it('should support the bottom-left corner', () => {
+    const gridCount = 5
+    const idx = 20
+    const result = idxToCoords(gridCount, idx)
+    expect(result).toEqual({ x: 0, y: 4 })
+  })
+
+  it('should support the bottom-right corner', () => {
+    const gridCount = 5
+    const idx = 24
+    const result = idxToCoords(gridCount, idx)
+    expect(result).toEqual({ x: 4, y: 4 })
+  })
+})
+
+describe('idxInBox', () => {
+  it('should return true if index is within the box', () => {
+    const gridCount = 5
+    const start = 0
+    const end = 24
+    const idx = 12
+    const result = idxInBox(gridCount, start, end, idx)
+    expect(result).toBe(true)
+  })
+
+  it('should return false if index is outside the box', () => {
+    const gridCount = 5
+    const start = 0
+    const end = 24
+    const idx = 25
+    const result = idxInBox(gridCount, start, end, idx)
+    expect(result).toBe(false)
+  })
+})

src/web/colors.test.js

@@ -0,0 +1,44 @@
+import { hashText, idColor } from './colors'
+import Color from 'color'
+
+describe('colors.js tests', () => {
+  describe('hashText', () => {
+    it('should return a number within the provided range', () => {
+      const text = 'test'
+      const range = 100
+      const result = hashText(text, range)
+      expect(typeof result).toBe('number')
+      expect(result).toBeGreaterThanOrEqual(0)
+      expect(result).toBeLessThan(range)
+    })
+  })
+
+  describe('idColor', () => {
+    it('should return a Color object', () => {
+      const id = 'test'
+      const result = idColor(id)
+      expect(result).toBeInstanceOf(Color)
+    })
+
+    it('should return white color for empty id', () => {
+      const id = ''
+      const result = idColor(id)
+      expect(result.hex()).toBe('#FFFFFF')
+    })
+
+    it('should generate the same color for the same id', () => {
+      const id = 'test'
+      const result1 = idColor(id)
+      const result2 = idColor(id)
+      expect(result1.hex()).toBe(result2.hex())
+    })
+
+    it('should generate different colors for different ids', () => {
+      const id1 = 'test1'
+      const id2 = 'test2'
+      const result1 = idColor(id1)
+      const result2 = idColor(id2)
+      expect(result1.hex()).not.toBe(result2.hex())
+    })
+  })
+})