Fixes #55 Add artifact validation which check to ensure it's not a directory

__tests__/ArtifactGlobber.test.ts

@@ -13,6 +13,18 @@ jest.mock('@actions/core', () => {
     return {warning: warnMock};
 })
 
+jest.mock('fs', () => {
+    return {
+        statSync: () => {
+            return {
+                isDirectory(): boolean {
+                    return false
+                }
+            }
+        }
+    };
+})
+
 describe("ArtifactGlobber", () => {
     beforeEach(() => {
         globMock.mockClear()

__tests__/ArtifactPathValidator.test.ts

@@ -0,0 +1,60 @@
+const directoryMock = jest.fn()
+const warnMock = jest.fn()
+
+import {ArtifactPathValidator} from "../src/ArtifactPathValidator";
+
+const pattern = 'pattern'
+
+jest.mock('@actions/core', () => {
+    return {warning: warnMock};
+})
+
+jest.mock('fs', () => {
+    return {
+        statSync: () => {
+            return {isDirectory: directoryMock}
+        }
+    };
+})
+
+describe("ArtifactPathValidator", () => {
+    beforeEach(() => {
+        warnMock.mockClear()
+        directoryMock.mockClear()
+    })
+
+    it("warns and filters out path which points to a directory", () => {
+        const paths = ['path1', 'path2']
+        directoryMock.mockReturnValueOnce(true).mockReturnValueOnce(false)
+
+        const validator = new ArtifactPathValidator(false, paths, pattern)
+
+        const result = validator.validate()
+        expect(warnMock).toBeCalled()
+        expect(result).toEqual(['path2'])
+    })
+
+    it("warns when no glob results are produced and empty results shouldn't throw", () => {
+        const validator = new ArtifactPathValidator(false, [], pattern)
+        const result = validator.validate()
+        expect(warnMock).toBeCalled()
+    })
+
+    it("throws when no glob results are produced and empty results shouild throw", () => {
+        const validator = new ArtifactPathValidator(true, [], pattern)
+        expect(() => {
+            validator.validate()
+        }).toThrow()
+    })
+
+    it("throws when path points to directory", () => {
+        const paths = ['path1', 'path2']
+        directoryMock.mockReturnValueOnce(true).mockReturnValueOnce(false)
+
+        const validator = new ArtifactPathValidator(true, paths, pattern)
+
+        expect(() => {
+            validator.validate()
+        }).toThrow()
+    })
+})

__tests__/Integration.test.ts

@@ -70,7 +70,7 @@ describe.skip('Integration Test', () => {
     function artifacts() {
         const globber = new FileArtifactGlobber()
         const artifactPath = path.join(__dirname, 'Integration.test.ts')
-        const artifactString = `~/Desktop/test.txt,blarg.tx, ${artifactPath}`
+        const artifactString = `~/Desktop,~/Desktop/test.txt,blarg.tx, ${artifactPath}`
         return globber.globArtifactString(artifactString, "raw", false)
     }