feat(path): add relative(from, to)

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/mason-core/path_spec.lua b/tests/mason-core/path_spec.lua
index 3d0c2e25..4aeb48f1 100644
--- a/tests/mason-core/path_spec.lua
+++ b/tests/mason-core/path_spec.lua
@@ -22,4 +22,55 @@ describe("path", function()
         assert.is_false(path.is_subdirectory("/foo/bar", "/foo/bas/baz"))
         assert.is_false(path.is_subdirectory("/foo/bar", "/foo/bars/baz"))
     end)
+
+    describe("relative ::", function()
+        local matrix = {
+            {
+                from = "/home/user/dir1/fileA",
+                to = "/home/user/dir1/fileB",
+                expected = "./fileB",
+            },
+            {
+                from = "/home/user/dir1/fileA",
+                to = "/home/user/dir2/fileC",
+                expected = "../dir2/fileC",
+            },
+            {
+                from = "/home/user/dir1/subdir/fileD",
+                to = "/home/user/dir1/fileE",
+                expected = "../fileE",
+            },
+            {
+                from = "/home/user/dir1/subdir/fileD",
+                to = "/home/user/dir1/subdir/fileF",
+                expected = "./fileF",
+            },
+            {
+                from = "/home/user/dir1/fileG",
+                to = "/home/user/dir2/subdir/fileH",
+                expected = "../dir2/subdir/fileH",
+            },
+            {
+                from = "/home/user/dir1/subdir1/subdir2/fileI",
+                to = "/home/user/dir1/fileJ",
+                expected = "../../fileJ",
+            },
+            {
+                from = "/fileK",
+                to = "/home/fileL",
+                expected = "./home/fileL",
+            },
+            {
+                from = "/home/user/fileM",
+                to = "/home/user/dir1/dir2/fileL",
+                expected = "./dir1/dir2/fileL",
+            },
+        }
+
+        for _, test_case in ipairs(matrix) do
+            it(("should resolve from %s to %s: %s"):format(test_case.from, test_case.to, test_case.expected), function()
+                assert.equals(test_case.expected, path.relative(test_case.from, test_case.to))
+            end)
+        end
+    end)
 end)