25     let path = '/user/local/tester';  variable
26     assert.strictEqual(FileUtils.readFile(path), undefined);
30     let path = 'test/ut/utils/demo.txt';  variable
31     assert.strictEqual(FileUtils.readFile(path), 'hello world!');
36     let path = 'test/ut/utils/demo.json';  variable
37     let obj = FileUtils.readFileAsJson(path);
42     let path = 'test/utils/demo_not_found.json';  variable
43     let obj = FileUtils.readFileAsJson(path);
48     let path = 'test/utils/error_json.txt';  variable
49     let obj = FileUtils.readFileAsJson(path);
55     let path = null;  variable
56     assert.strictEqual(FileUtils.getFileName(path), undefined);
58     path = undefined;
59     assert.strictEqual(FileUtils.getFileName(path), undefined);
63     let path = 'resources/configs/user_profile.json';  variable
64     assert.strictEqual(FileUtils.getFileName(path), 'user_profile.json');
68     let path = 'D:\\HuaweiApp\\ohsdk\\ets\\3.2.7.5\\user_profile.json';  variable
69     assert.strictEqual(FileUtils.getFileName(path), 'user_profile.json');
73     let path = 'user_profile.json';  variable
74     assert.strictEqual(FileUtils.getFileName(path), 'user_profile.json');
79     let path = null;  variable
80     assert.strictEqual(FileUtils.getFileExtension(path), undefined);
82     path = undefined;
83     assert.strictEqual(FileUtils.getFileExtension(path), undefined);
87     let path = 'resources/configs/user_profile';  variable
88     assert.strictEqual(FileUtils.getFileExtension(path), undefined);
92     let path = 'resources/configs.dir/user_profile.conf';  variable
93     assert.strictEqual(FileUtils.getFileExtension(path), 'conf');
97     let path = 'resources/configs/user_profile.json';  variable
98     assert.strictEqual(FileUtils.getFileExtension(path), 'json');
102     let path = 'resources/configs/user_profile.';  variable
103     assert.strictEqual(FileUtils.getFileExtension(path), '');
108     let path = 'test/ut/utils/write_demo.txt';  variable
110     FileUtils.writeFile(path, content);
112     const fileContent = FileUtils.readFile(path);
118     let path = 'test/utils/write_demo.txt';  variable
121     assert.strictEqual(FileUtils.getPrefix(path), prefix);
125     let path = 'D:\\HuaweiApp\\ohsdk\\ets\\3.2.7.5\\us';  variable
128     assert.strictEqual(FileUtils.getPrefix(path), prefix);
132     let path = 'D:';  variable
135     assert.strictEqual(FileUtils.getPrefix(path), prefix);
139 …it('Tester: <get path without prefix no prefix test.> case for FileUtils#getPathWithoutPrefix', fu…
140     let path = 'D:';  variable
143     assert.strictEqual(FileUtils.getPathWithoutPrefix(path, prefix), path);
146 …it('Tester: <get path without prefix contain prefix test.> case for FileUtils#getPathWithoutPrefix…
147     let path = 'D:\\HuaweiApp\\ohsdk\\ets\\3.2.7.5';  variable
150     assert.strictEqual(FileUtils.getPathWithoutPrefix(path, prefix), '\\ohsdk\\ets\\3.2.7.5');
153 …it('Tester: <get path without prefix path and prefix equal test.> case for FileUtils#getPathWithou…
154     let path = 'D:\\HuaweiApp\\ohsdk\\ets\\3.2.7.5';  variable
157     assert.strictEqual(FileUtils.getPathWithoutPrefix(path, prefix), '');