1 files changed, 46 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-path-zero-length-strings.js b/tests/node_compat/test/parallel/test-path-zero-length-strings.js
new file mode 100644
index 000000000..5fa1eafbf
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-path-zero-length-strings.js
@@ -0,0 +1,46 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
+
+'use strict';
+
+// These testcases are specific to one uncommon behavior in path module. Few
+// of the functions in path module, treat '' strings as current working
+// directory. This test makes sure that the behavior is intact between commits.
+// See: https://github.com/nodejs/node/pull/2106
+
+require('../common');
+const assert = require('assert');
+const path = require('path');
+const pwd = process.cwd();
+
+// Join will internally ignore all the zero-length strings and it will return
+// '.' if the joined string is a zero-length string.
+assert.strictEqual(path.posix.join(''), '.');
+assert.strictEqual(path.posix.join('', ''), '.');
+assert.strictEqual(path.win32.join(''), '.');
+assert.strictEqual(path.win32.join('', ''), '.');
+assert.strictEqual(path.join(pwd), pwd);
+assert.strictEqual(path.join(pwd, ''), pwd);
+
+// Normalize will return '.' if the input is a zero-length string
+assert.strictEqual(path.posix.normalize(''), '.');
+assert.strictEqual(path.win32.normalize(''), '.');
+assert.strictEqual(path.normalize(pwd), pwd);
+
+// Since '' is not a valid path in any of the common environments, return false
+assert.strictEqual(path.posix.isAbsolute(''), false);
+assert.strictEqual(path.win32.isAbsolute(''), false);
+
+// Resolve, internally ignores all the zero-length strings and returns the
+// current working directory
+assert.strictEqual(path.resolve(''), pwd);
+assert.strictEqual(path.resolve('', ''), pwd);
+
+// Relative, internally calls resolve. So, '' is actually the current directory
+assert.strictEqual(path.relative('', pwd), '');
+assert.strictEqual(path.relative(pwd, ''), '');
+assert.strictEqual(path.relative(pwd, pwd), '');