[Artifacts] Name validation + zip specification creation (#1482)

* Artifact name validation + zip specification creation

* Fix linting issues

* Grammar fix

* Update test description

packages/artifact/__tests__/path-and-artifact-name-validation.test.ts

@@ -0,0 +1,79 @@
+import {
+  validateArtifactName,
+  validateFilePath
+} from '../src/internal/upload/path-and-artifact-name-validation'
+
+import * as core from '@actions/core'
+
+describe('Path and artifact name validation', () => {
+  beforeAll(() => {
+    // mock all output so that there is less noise when running tests
+    jest.spyOn(console, 'log').mockImplementation(() => {})
+    jest.spyOn(core, 'debug').mockImplementation(() => {})
+    jest.spyOn(core, 'info').mockImplementation(() => {})
+    jest.spyOn(core, 'warning').mockImplementation(() => {})
+  })
+
+  it('Check Artifact Name for any invalid characters', () => {
+    const invalidNames = [
+      'my\\artifact',
+      'my/artifact',
+      'my"artifact',
+      'my:artifact',
+      'my<artifact',
+      'my>artifact',
+      'my|artifact',
+      'my*artifact',
+      'my?artifact',
+      ''
+    ]
+    for (const invalidName of invalidNames) {
+      expect(() => {
+        validateArtifactName(invalidName)
+      }).toThrow()
+    }
+
+    const validNames = [
+      'my-normal-artifact',
+      'myNormalArtifact',
+      'm¥ñðrmålÄr†ï£å¢†'
+    ]
+    for (const validName of validNames) {
+      expect(() => {
+        validateArtifactName(validName)
+      }).not.toThrow()
+    }
+  })
+
+  it('Check Artifact File Path for any invalid characters', () => {
+    const invalidNames = [
+      'some/invalid"artifact/path',
+      'some/invalid:artifact/path',
+      'some/invalid<artifact/path',
+      'some/invalid>artifact/path',
+      'some/invalid|artifact/path',
+      'some/invalid*artifact/path',
+      'some/invalid?artifact/path',
+      'some/invalid\rartifact/path',
+      'some/invalid\nartifact/path',
+      'some/invalid\r\nartifact/path',
+      ''
+    ]
+    for (const invalidName of invalidNames) {
+      expect(() => {
+        validateFilePath(invalidName)
+      }).toThrow()
+    }
+
+    const validNames = [
+      'my/perfectly-normal/artifact-path',
+      'my/perfectly\\Normal/Artifact-path',
+      'm¥/ñðrmål/Är†ï£å¢†'
+    ]
+    for (const validName of validNames) {
+      expect(() => {
+        validateFilePath(validName)
+      }).not.toThrow()
+    }
+  })
+})