Add latest changes from gitlab-org/gitlab@master

1 files changed, 59 insertions, 1 deletions

diff --git a/spec/frontend/ide/utils_spec.js b/spec/frontend/ide/utils_spec.js
index 9d7926a4d06..44eae7eacbe 100644
--- a/spec/frontend/ide/utils_spec.js
+++ b/spec/frontend/ide/utils_spec.js
@@ -1,8 +1,66 @@
 import { commitItemIconMap } from '~/ide/constants';
-import { getCommitIconMap } from '~/ide/utils';
+import { getCommitIconMap, isTextFile } from '~/ide/utils';
 import { decorateData } from '~/ide/stores/utils';
 
 describe('WebIDE utils', () => {
+  describe('isTextFile', () => {
+    it('returns false for known binary types', () => {
+      expect(isTextFile('file content', 'image/png', 'my.png')).toBeFalsy();
+      // mime types are case insensitive
+      expect(isTextFile('file content', 'IMAGE/PNG', 'my.png')).toBeFalsy();
+    });
+
+    it('returns true for known text types', () => {
+      expect(isTextFile('file content', 'text/plain', 'my.txt')).toBeTruthy();
+      // mime types are case insensitive
+      expect(isTextFile('file content', 'TEXT/PLAIN', 'my.txt')).toBeTruthy();
+    });
+
+    it('returns true for file extensions that Monaco supports syntax highlighting for', () => {
+      // test based on both MIME and extension
+      expect(isTextFile('{"éêė":"value"}', 'application/json', 'my.json')).toBeTruthy();
+      expect(isTextFile('{"éêė":"value"}', 'application/json', '.tsconfig')).toBeTruthy();
+      expect(isTextFile('SELECT "éêė" from tablename', 'application/sql', 'my.sql')).toBeTruthy();
+    });
+
+    it('returns true even irrespective of whether the mimes, extensions or file names are lowercase or upper case', () => {
+      expect(isTextFile('{"éêė":"value"}', 'application/json', 'MY.JSON')).toBeTruthy();
+      expect(isTextFile('SELECT "éêė" from tablename', 'application/sql', 'MY.SQL')).toBeTruthy();
+      expect(
+        isTextFile('var code = "something"', 'application/javascript', 'Gruntfile'),
+      ).toBeTruthy();
+      expect(
+        isTextFile(
+          'MAINTAINER Александр "alexander11354322283@me.com"',
+          'application/octet-stream',
+          'dockerfile',
+        ),
+      ).toBeTruthy();
+    });
+
+    it('returns false if filename is same as the expected extension', () => {
+      expect(isTextFile('SELECT "éêė" from tablename', 'application/sql', 'sql')).toBeFalsy();
+    });
+
+    it('returns true for ASCII only content for unknown types', () => {
+      expect(isTextFile('plain text', 'application/x-new-type', 'hello.mytype')).toBeTruthy();
+    });
+
+    it('returns true for relevant filenames', () => {
+      expect(
+        isTextFile(
+          'MAINTAINER Александр "alexander11354322283@me.com"',
+          'application/octet-stream',
+          'Dockerfile',
+        ),
+      ).toBeTruthy();
+    });
+
+    it('returns false for non-ASCII content for unknown types', () => {
+      expect(isTextFile('{"éêė":"value"}', 'application/octet-stream', 'my.random')).toBeFalsy();
+    });
+  });
+
   const createFile = (name = 'name', id = name, type = '', parent = null) =>
     decorateData({
       id,