Add ability to persist a score artifact

.github/linters/.eslintrc.yml

@@ -37,6 +37,7 @@ extends:
 rules:
   {
     'camelcase': 'off',
+    'eslint-comments/no-unlimited-disable': 'off',
     'eslint-comments/no-use': 'off',
     'eslint-comments/no-unused-disable': 'off',
     'i18n-text/no-en': 'off',

__tests__/main.test.ts

@@ -209,6 +209,43 @@ describe('action', () => {
     )
   })
 
+  it('skips creating a score artifact by default', async () => {
+    // Mock the @actions/github context.
+    Object.defineProperty(github, 'context', {
+      value: pullRequestEventContext()
+    })
+
+    await main.run()
+
+    expect(runMock).toHaveReturned()
+    expect(setFailedMock).not.toHaveBeenCalled()
+    expect(infoMock).toHaveBeenCalledWith('Skipping score artifact creation')
+  })
+
+  it("logs that it's creating an artifact when configured to do so", async () => {
+    // This test does not actually exercise getting to the end of the artifact
+    // creation process; only that we've started it.
+
+    // Mock the @actions/github context.
+    Object.defineProperty(github, 'context', {
+      value: pullRequestEventContext()
+    })
+
+    loadConfigurationMock.mockImplementation(() => ({
+      persistScoreArtifact: true
+    }))
+
+    await main.run()
+
+    expect(runMock).toHaveReturned()
+
+    // The failure mock actually will be called in this test (due to the
+    // unmocked call to `fs.mkdirSync`, so we intentionally omit this line
+    // expect(setFailedMock).not.toHaveBeenCalled()
+
+    expect(infoMock).toHaveBeenCalledWith('Creating score artifact')
+  })
+
   it('runs the workflow sucessfully when optIns configuration is present and the pull request author is in it', async () => {
     // Mock the @actions/github context.
     Object.defineProperty(github, 'context', {