fix: code coverage

README.md

@@ -35,13 +35,14 @@ plugins: [
     resolve: `@adobe/gatsby-source-github-file-contributors`,
       options: {
         pages: {
-          paths: ['src/pages'],
-          extensions: ['md']
+          root: '', // root of the page paths (below) in the Github repo
+          paths: ['src/pages'], // relative path of the pages from the config
+          extensions: ['md'] // page extensions to filter for
         },
         repo: {
-          token: process.env.GITHUB_TOKEN,
-          owner: process.env.GITHUB_REPO_OWNER,
-          name: process.env.GITHUB_REPO_NAME,
+          token: process.env.GITHUB_TOKEN, // Github Personal Access Token
+          owner: process.env.GITHUB_REPO_OWNER, // user or org name
+          name: process.env.GITHUB_REPO_NAME, 
           branch: process.env.GITHUB_REPO_BRANCH
         }
       }

test/gatsby-node.test.js

@@ -70,6 +70,12 @@ test('sourceNodes', async () => {
   expect(gatsbyHelpers.actions.createNode).toHaveBeenCalledTimes(pages.length)
   expect(mockGithubFetchContributors).toHaveBeenCalledTimes(pages.length)
 
+  options.root = 'my-root' // coverage
+  mockGlobby.mockResolvedValueOnce([])
+  await expect(gatsbyNode.sourceNodes(gatsbyHelpers, options)).resolves.toEqual(undefined)
+  expect(gatsbyHelpers.actions.createNode).toHaveBeenCalledTimes(pages.length)
+  expect(mockGithubFetchContributors).toHaveBeenCalledTimes(pages.length)
+
   pages.forEach((page, index) => {
     const { owner, name, branch, token } = options.repo
     expect(mockGithubFetchContributors).toHaveBeenNthCalledWith(index + 1, owner, name, branch, page, token)