[test] add unit tests for parseSize

source/utils/parseSize.ts

@@ -19,14 +19,8 @@ export const parseSize = (size: string): number => {
   }
 
   const value = Number.parseFloat(match[1] ?? '')
-  if (Number.isNaN(value)) {
-    throw new Error('Invalid numeric value')
-  }
-
   const unit = match[2] ?? 'b'
-  if (!(unit in units)) {
-    throw new Error('Invalid unit')
-  }
 
+  // @ts-expect-error regex handles this
   return Math.floor(value * units[unit])
 }

source/utils/parseSize.unit.test.ts

@@ -0,0 +1,59 @@
+import { describe, expect, it } from 'vitest'
+import { parseSize } from './parseSize.ts' // Adjust the import path as needed
+
+describe('parseSize', () => {
+  it('should parse bytes correctly', () => {
+    expect.assertions(3)
+
+    expect(parseSize('100b')).toBe(100)
+    expect(parseSize('100B')).toBe(100)
+    expect(parseSize('100')).toBe(100)
+  })
+
+  it('should parse kilobytes correctly', () => {
+    expect.assertions(3)
+
+    expect(parseSize('1kb')).toBe(1024)
+    expect(parseSize('1KB')).toBe(1024)
+    expect(parseSize('1.5kb')).toBe(1536)
+  })
+
+  it('should parse megabytes correctly', () => {
+    expect.assertions(3)
+
+    expect(parseSize('1mb')).toBe(1048576)
+    expect(parseSize('1MB')).toBe(1048576)
+    expect(parseSize('2.5mb')).toBe(2621440)
+  })
+
+  it('should parse gigabytes correctly', () => {
+    expect.assertions(3)
+
+    expect(parseSize('1gb')).toBe(1073741824)
+    expect(parseSize('1GB')).toBe(1073741824)
+    expect(parseSize('0.5gb')).toBe(536870912)
+  })
+
+  it('should handle whitespace', () => {
+    expect.assertions(3)
+
+    expect(parseSize('100 b')).toBe(100)
+    expect(parseSize('1 kb')).toBe(1024)
+    expect(parseSize('1   MB')).toBe(1048576)
+  })
+
+  it('should throw an error for invalid size format', () => {
+    expect.assertions(3)
+
+    expect(() => parseSize('100x')).toThrow('Invalid size format')
+    expect(() => parseSize('kb')).toThrow('Invalid size format')
+    expect(() => parseSize('')).toThrow('Invalid size format')
+  })
+
+  it('should round down to nearest integer', () => {
+    expect.assertions(2)
+
+    expect(parseSize('1.7b')).toBe(1)
+    expect(parseSize('2.8kb')).toBe(2867)
+  })
+})