feat: add filepicker package

packages/filepicker/src/utils.spec.ts

@@ -0,0 +1,77 @@
+import { formatSizeToReadableString, parseFileName } from './utils'
+
+describe('utils', () => {
+  describe('parseFileName', () => {
+    it('should parse regular filenames', () => {
+      const fileName = 'test.txt'
+
+      const { name, ext } = parseFileName(fileName)
+
+      expect(name).toBe('test')
+      expect(ext).toBe('txt')
+    })
+
+    it('should parse filenames with multiple dots', () => {
+      const fileName = 'Screen Shot 2022-03-06 at 12.13.32 PM.png'
+
+      const { name, ext } = parseFileName(fileName)
+
+      expect(name).toBe('Screen Shot 2022-03-06 at 12.13.32 PM')
+      expect(ext).toBe('png')
+    })
+
+    it('should parse filenames without extensions', () => {
+      const fileName = 'extensionless'
+
+      const { name, ext } = parseFileName(fileName)
+
+      expect(name).toBe('extensionless')
+      expect(ext).toBe('')
+    })
+  })
+
+  describe('formatSizeToReadableString', () => {
+    it('should show as bytes if less than 1KB', () => {
+      const size = 1_023
+
+      const formattedSize = formatSizeToReadableString(size)
+
+      expect(formattedSize).toBe('1023 B')
+    })
+
+    it('should format as KB', () => {
+      const size = 1_024
+
+      const formattedSize = formatSizeToReadableString(size)
+
+      expect(formattedSize).toBe('1 KB')
+    })
+
+    it('should format as MB', () => {
+      const size = 1_048_576
+
+      const formattedSize = formatSizeToReadableString(size)
+
+      expect(formattedSize).toBe('1 MB')
+    })
+
+    it('should format as GB', () => {
+      const size = 1_073_741_824
+
+      const formattedSize = formatSizeToReadableString(size)
+
+      expect(formattedSize).toBe('1 GB')
+    })
+
+    it('should only show fixed-point notation if calculated size is not an integer', () => {
+      const size1 = 1_048_576
+      const size2 = 1_572_864
+
+      const formattedSize1 = formatSizeToReadableString(size1)
+      const formattedSize2 = formatSizeToReadableString(size2)
+
+      expect(formattedSize1).toBe('1 MB')
+      expect(formattedSize2).toBe('1.50 MB')
+    })
+  })
+})