diff --git a/e2e/binary/dir/BUILD.bazel b/e2e/binary/dir/BUILD.bazel
index 3249d822bd43f674c66696ac910e8f48ce9847d6..bddf96c4098c134dcedd1e9939886f1e7657b806 100644
--- a/e2e/binary/dir/BUILD.bazel
+++ b/e2e/binary/dir/BUILD.bazel
@@ -1,11 +1,30 @@
-load("@bazel_skylib//rules:build_test.bzl", "build_test")
+load("@rules_python_pytest//python_pytest:defs.bzl", "py_pytest_test")
+load("@bazel_skylib//rules:native_binary.bzl", "native_test")
 
-# TODO: write an _actual_ test for `dir`
+py_pytest_test(
+    name = "pytest",
+    size = "small",
+    srcs = ["dir.py"],
+    data = [
+        "expected.txt",
+        "@ape//ape:dir",
+    ],
+    deps = [
+        "//binary:pytest",
+    ],
+)
 
-build_test(
-    name = "dir",
+native_test(
+    name = "native",
     size = "small",
-    tags = ["stub"],
-    targets = ["@ape//ape:dir"],
-    visibility = ["//:__subpackages__"],
+    src = "@ape//ape:dir",
 )
+
+test_suite(
+    name = "dir",
+    tests = [
+        "pytest",
+        "native",
+    ],
+    visibility = ["//:__subpackages__"],
+)
\ No newline at end of file
diff --git a/e2e/binary/dir/dir.py b/e2e/binary/dir/dir.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f060e31153efd93f6921ea76d8bcd7bb0c25363
--- /dev/null
+++ b/e2e/binary/dir/dir.py
@@ -0,0 +1,17 @@
+from __future__ import annotations
+
+from pathlib import Path
+from subprocess import run
+
+from binary import Relative, Tool, Diff
+
+
+def test_dir(tool: Tool, relative: Relative, tmp_path: Path) -> None:
+    binary = tool("dir")
+    expected = relative("expected.txt")
+    output = tmp_path / "output.txt"
+
+    cmd = (binary, tmp_path)
+    with open(output, "w", encoding="utf-8") as stream:
+        run(cmd, check=True, timeout=30, stdout=stream)
+    assert Diff(expected) == Diff(output)
diff --git a/e2e/binary/dir/expected.txt b/e2e/binary/dir/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8617481f53306378fb27a7abd9b51efdeedda995
--- /dev/null
+++ b/e2e/binary/dir/expected.txt
@@ -0,0 +1 @@
+output.txt