Fixes #50 Add plugin outputs which contain release information.

__tests__/Outputs.test.ts

@@ -0,0 +1,29 @@
+const mockSetOutput = jest.fn();
+
+import {CoreOutputs, Outputs} from "../src/Outputs";
+import {ReleaseData} from "../src/Releases";
+
+jest.mock('@actions/core', () => {
+    return {setOutput: mockSetOutput};
+})
+
+describe('Outputs', () => {
+    let outputs: Outputs;
+    let releaseData: ReleaseData
+
+    beforeEach(() => {
+        outputs = new CoreOutputs()
+        releaseData = {
+            id: 1,
+            html_url: 'https://api.example.com/assets',
+            upload_url: 'https://api.example.com'
+        }
+    })
+
+    it('Applies the release data to the action output', () => {
+        outputs.applyReleaseData(releaseData)
+        expect(mockSetOutput).toBeCalledWith('id', releaseData.id)
+        expect(mockSetOutput).toBeCalledWith('html_url', releaseData.html_url)
+        expect(mockSetOutput).toBeCalledWith('upload_url', releaseData.upload_url)
+    })
+})