1 files changed, 30 insertions, 19 deletions

diff --git a/spec/frontend/repository/utils/readme_spec.js b/spec/frontend/repository/utils/readme_spec.js
index 6b7876c8947..985d947a0af 100644
--- a/spec/frontend/repository/utils/readme_spec.js
+++ b/spec/frontend/repository/utils/readme_spec.js
@@ -1,33 +1,44 @@
 import { readmeFile } from '~/repository/utils/readme';
 
 describe('readmeFile', () => {
-  describe('markdown files', () => {
-    it('returns markdown file', () => {
-      expect(readmeFile([{ name: 'README' }, { name: 'README.md' }])).toEqual({
-        name: 'README.md',
-      });
+  it('prefers README with markup over plain text README', () => {
+    expect(readmeFile([{ name: 'README' }, { name: 'README.md' }])).toEqual({
+      name: 'README.md',
+    });
+  });
 
-      expect(readmeFile([{ name: 'README' }, { name: 'index.md' }])).toEqual({
-        name: 'index.md',
-      });
+  it('is case insensitive', () => {
+    expect(readmeFile([{ name: 'README' }, { name: 'readme.rdoc' }])).toEqual({
+      name: 'readme.rdoc',
     });
   });
 
-  describe('plain files', () => {
-    it('returns plain file', () => {
-      expect(readmeFile([{ name: 'README' }, { name: 'TEST.md' }])).toEqual({
-        name: 'README',
-      });
+  it('returns the first README found', () => {
+    expect(readmeFile([{ name: 'INDEX.adoc' }, { name: 'README.md' }])).toEqual({
+      name: 'INDEX.adoc',
+    });
+  });
 
-      expect(readmeFile([{ name: 'readme' }, { name: 'TEST.md' }])).toEqual({
-        name: 'readme',
-      });
+  it('expects extension to be separated by dot', () => {
+    expect(readmeFile([{ name: 'readmeXorg' }, { name: 'index.org' }])).toEqual({
+      name: 'index.org',
     });
   });
 
-  describe('non-previewable file', () => {
-    it('returns undefined', () => {
-      expect(readmeFile([{ name: 'index.js' }, { name: 'TEST.md' }])).toBe(undefined);
+  it('returns plain text README when there is no README with markup', () => {
+    expect(readmeFile([{ name: 'README' }, { name: 'NOT_README.md' }])).toEqual({
+      name: 'README',
     });
   });
+
+  it('recognizes Readme.txt as a plain text README', () => {
+    expect(readmeFile([{ name: 'Readme.txt' }])).toEqual({
+      name: 'Readme.txt',
+    });
+  });
+
+  it('returns undefined when there are no appropriate files', () => {
+    expect(readmeFile([{ name: 'index.js' }, { name: 'md.README' }])).toBe(undefined);
+    expect(readmeFile([])).toBe(undefined);
+  });
 });