update tests to include subdirectory validation

Signed-off-by: Matt Wise <wsmatth@amazon.com>

packages/backend-common/src/reading/__fixtures__/awsS3/awsS3-mock-object3.yaml

@@ -0,0 +1 @@
+site_name: Test3

packages/backend-common/src/reading/tree/ReadableArrayResponse.test.ts

@@ -31,6 +31,12 @@ const file2 = fs.readFileSync(
   path.resolve(__filename, '../../__fixtures__/awsS3/awsS3-mock-object2.yaml'),
 );
 
+const dir1 = 'dir1';
+const name3 = `file3.yaml`;
+const file3 = fs.readFileSync(
+  path.resolve(__filename, '../../__fixtures__/awsS3/awsS3-mock-object3.yaml'),
+);
+
 describe('ReadableArrayResponse', () => {
   const sourceDir = createMockDirectory();
   const targetDir = createMockDirectory();
@@ -39,6 +45,9 @@ describe('ReadableArrayResponse', () => {
     sourceDir.setContent({
       [name1]: file1,
       [name2]: file2,
+      [dir1]: {
+        [name3]: file3,
+      },
     });
     targetDir.clear();
   });
@@ -56,11 +65,13 @@ describe('ReadableArrayResponse', () => {
 
   const path1 = sourceDir.resolve(name1);
   const path2 = sourceDir.resolve(name2);
+  const path3 = sourceDir.resolve(`${dir1}/${name3}`);
 
   it('should read files', async () => {
     const arr: FromReadableArrayOptions = [
       { data: createReadStream(path1), path: path1 },
       { data: createReadStream(path2), path: path2 },
+      { data: createReadStream(path3), path: path3 },
     ];
 
     const res = new ReadableArrayResponse(arr, targetDir.path, 'etag');
@@ -69,18 +80,21 @@ describe('ReadableArrayResponse', () => {
     expect(files).toEqual([
       { path: path1, content: expect.any(Function) },
       { path: path2, content: expect.any(Function) },
+      { path: path3, content: expect.any(Function) },
     ]);
     const contents = await Promise.all(files.map(f => f.content()));
-    expect(contents).toEqual([file1, file2]);
+    expect(contents).toEqual([file1, file2, file3]);
   });
 
   it('should extract entire archive into directory', async () => {
     const relativePath1 = relative(sourceDir.path, path1);
     const relativePath2 = relative(sourceDir.path, path2);
+    const relativePath3 = relative(sourceDir.path, path3);
 
     const arr: FromReadableArrayOptions = [
       { data: createReadStream(path1), path: relativePath1 },
       { data: createReadStream(path2), path: relativePath2 },
+      { data: createReadStream(path3), path: relativePath3 },
     ];
 
     const res = new ReadableArrayResponse(arr, targetDir.path, 'etag');
@@ -89,6 +103,9 @@ describe('ReadableArrayResponse', () => {
     expect(targetDir.content({ path: dir })).toEqual({
       [name1]: file1.toString('utf8'),
       [name2]: file2.toString('utf8'),
+      [dir1]: {
+        [name3]: file3.toString('utf8'),
+      },
     });
   });
 });