test: add isExactVersions tests (#893)

Author: 43081j

test/unit/app/utils/versions.spec.ts

@@ -6,11 +6,45 @@ import {
   getPrereleaseChannel,
   getVersionGroupKey,
   getVersionGroupLabel,
+  isExactVersion,
   isSameVersionGroup,
   parseVersion,
   sortTags,
 } from '../../../../app/utils/versions'
 
+describe('isExactVersion', () => {
+  it('returns true for stable versions', () => {
+    expect(isExactVersion('1.0.0')).toBe(true)
+    expect(isExactVersion('0.1.0')).toBe(true)
+    expect(isExactVersion('10.20.30')).toBe(true)
+  })
+
+  it('returns true for prerelease versions', () => {
+    expect(isExactVersion('1.0.0-beta.1')).toBe(true)
+    expect(isExactVersion('1.0.0-alpha.0')).toBe(true)
+    expect(isExactVersion('5.8.0-rc')).toBe(true)
+  })
+
+  it('returns false for ranges', () => {
+    expect(isExactVersion('^1.0.0')).toBe(false)
+    expect(isExactVersion('~1.0.0')).toBe(false)
+    expect(isExactVersion('>=1.0.0')).toBe(false)
+    expect(isExactVersion('1.0.x')).toBe(false)
+    expect(isExactVersion('*')).toBe(false)
+  })
+
+  it('returns false for dist-tags', () => {
+    expect(isExactVersion('latest')).toBe(false)
+    expect(isExactVersion('next')).toBe(false)
+    expect(isExactVersion('beta')).toBe(false)
+  })
+
+  it('returns false for invalid strings', () => {
+    expect(isExactVersion('')).toBe(false)
+    expect(isExactVersion('not-a-version')).toBe(false)
+  })
+})
+
 describe('parseVersion', () => {
   it('parses stable versions', () => {
     expect(parseVersion('1.2.3')).toEqual({