1 files changed, 73 insertions, 0 deletions
diff --git a/std/fs/path/relative_test.ts b/std/fs/path/relative_test.ts
new file mode 100644
index 000000000..0188b5368
--- /dev/null
+++ b/std/fs/path/relative_test.ts
@@ -0,0 +1,73 @@
+// Copyright the Browserify authors. MIT License.
+// Ported from https://github.com/browserify/path-browserify/
+
+import { test } from "../../testing/mod.ts";
+import { assertEquals } from "../../testing/asserts.ts";
+import * as path from "./mod.ts";
+
+const relativeTests = {
+  win32:
+    // arguments                     result
+    [
+      ["c:/blah\\blah", "d:/games", "d:\\games"],
+      ["c:/aaaa/bbbb", "c:/aaaa", ".."],
+      ["c:/aaaa/bbbb", "c:/cccc", "..\\..\\cccc"],
+      ["c:/aaaa/bbbb", "c:/aaaa/bbbb", ""],
+      ["c:/aaaa/bbbb", "c:/aaaa/cccc", "..\\cccc"],
+      ["c:/aaaa/", "c:/aaaa/cccc", "cccc"],
+      ["c:/", "c:\\aaaa\\bbbb", "aaaa\\bbbb"],
+      ["c:/aaaa/bbbb", "d:\\", "d:\\"],
+      ["c:/AaAa/bbbb", "c:/aaaa/bbbb", ""],
+      ["c:/aaaaa/", "c:/aaaa/cccc", "..\\aaaa\\cccc"],
+      ["C:\\foo\\bar\\baz\\quux", "C:\\", "..\\..\\..\\.."],
+      [
+        "C:\\foo\\test",
+        "C:\\foo\\test\\bar\\package.json",
+        "bar\\package.json"
+      ],
+      ["C:\\foo\\bar\\baz-quux", "C:\\foo\\bar\\baz", "..\\baz"],
+      ["C:\\foo\\bar\\baz", "C:\\foo\\bar\\baz-quux", "..\\baz-quux"],
+      ["\\\\foo\\bar", "\\\\foo\\bar\\baz", "baz"],
+      ["\\\\foo\\bar\\baz", "\\\\foo\\bar", ".."],
+      ["\\\\foo\\bar\\baz-quux", "\\\\foo\\bar\\baz", "..\\baz"],
+      ["\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz-quux", "..\\baz-quux"],
+      ["C:\\baz-quux", "C:\\baz", "..\\baz"],
+      ["C:\\baz", "C:\\baz-quux", "..\\baz-quux"],
+      ["\\\\foo\\baz-quux", "\\\\foo\\baz", "..\\baz"],
+      ["\\\\foo\\baz", "\\\\foo\\baz-quux", "..\\baz-quux"],
+      ["C:\\baz", "\\\\foo\\bar\\baz", "\\\\foo\\bar\\baz"],
+      ["\\\\foo\\bar\\baz", "C:\\baz", "C:\\baz"]
+    ],
+  posix:
+    // arguments          result
+    [
+      ["/var/lib", "/var", ".."],
+      ["/var/lib", "/bin", "../../bin"],
+      ["/var/lib", "/var/lib", ""],
+      ["/var/lib", "/var/apache", "../apache"],
+      ["/var/", "/var/lib", "lib"],
+      ["/", "/var/lib", "var/lib"],
+      ["/foo/test", "/foo/test/bar/package.json", "bar/package.json"],
+      ["/Users/a/web/b/test/mails", "/Users/a/web/b", "../.."],
+      ["/foo/bar/baz-quux", "/foo/bar/baz", "../baz"],
+      ["/foo/bar/baz", "/foo/bar/baz-quux", "../baz-quux"],
+      ["/baz-quux", "/baz", "../baz"],
+      ["/baz", "/baz-quux", "../baz-quux"]
+    ]
+};
+
+test(function relative() {
+  relativeTests.posix.forEach(function(p) {
+    const expected = p[2];
+    const actual = path.posix.relative(p[0], p[1]);
+    assertEquals(actual, expected);
+  });
+});
+
+test(function relativeWin32() {
+  relativeTests.win32.forEach(function(p) {
+    const expected = p[2];
+    const actual = path.win32.relative(p[0], p[1]);
+    assertEquals(actual, expected);
+  });
+});