From 5486f6da18ba57e5ca23662bb5f53a146715eda9 Mon Sep 17 00:00:00 2001
From: Alan Agius <alan.agius4@gmail.com>
Date: Tue, 25 Sep 2018 13:48:39 +0200
Subject: [PATCH] test: add unit test to cover `subdirs`

Closes #12143
---
 .../schematics/src/tree/host-tree_spec.ts             | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/angular_devkit/schematics/src/tree/host-tree_spec.ts b/packages/angular_devkit/schematics/src/tree/host-tree_spec.ts
index a6010db409e7..6e24d7019a0c 100644
--- a/packages/angular_devkit/schematics/src/tree/host-tree_spec.ts
+++ b/packages/angular_devkit/schematics/src/tree/host-tree_spec.ts
@@ -115,4 +115,15 @@ describe('FilterHostTree', () => {
     expect(filteredFiles).toEqual(['/dir1/file1'].map(normalize));
     expect(filtered2.actions.map(a => a.kind)).toEqual([]);
   });
+
+  it('subdirs only contains directories', () => {
+    const fs = new virtualFs.test.TestHost({
+      '/dir1/file1': '',
+      '/dir1/dir2/file2': '',
+      '/dir1/dir3/file3': '',
+    });
+    const tree = new HostTree(fs);
+    const subDirs = tree.getDir('/dir1').subdirs;
+    expect(subDirs as string[]).toEqual(['dir2', 'dir3']);
+  });
 });