From e10c7de4a1217edbb40ae8fe173987b24a891789 Mon Sep 17 00:00:00 2001
From: Matt Clarkson <matthew.clarkson@arm.com>
Date: Tue, 4 Feb 2025 15:51:29 +0000
Subject: [PATCH] test(tar): add version and codec test

---
 e2e/binary/tar/BUILD.bazel | 31 ++++++++++++++----
 e2e/binary/tar/create.py   | 65 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+), 6 deletions(-)
 create mode 100644 e2e/binary/tar/create.py

diff --git a/e2e/binary/tar/BUILD.bazel b/e2e/binary/tar/BUILD.bazel
index c10bdaab..14abdad3 100644
--- a/e2e/binary/tar/BUILD.bazel
+++ b/e2e/binary/tar/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 `tar`
+py_pytest_test(
+    name = "pytest",
+    size = "small",
+    srcs = ["create.py"],
+    data = [
+        "@ape//ape:tar",
+    ],
+    deps = [
+        "//binary:pytest",
+    ],
+)
 
-build_test(
-    name = "tar",
+native_test(
+    name = "version",
     size = "small",
-    tags = ["stub"],
-    targets = ["@ape//ape:tar"],
+    src = "@ape//ape:tar",
+    args = ["--version"],
+)
+
+test_suite(
+    name = "tar",
+    tests = [
+        ":pytest",
+        ":version",
+    ],
     visibility = ["//:__subpackages__"],
 )
diff --git a/e2e/binary/tar/create.py b/e2e/binary/tar/create.py
new file mode 100644
index 00000000..f7888782
--- /dev/null
+++ b/e2e/binary/tar/create.py
@@ -0,0 +1,65 @@
+from __future__ import annotations
+
+from pathlib import Path
+from subprocess import run
+from tarfile import REGTYPE, TarFile
+
+from binary import Relative, Tool
+
+
+def test_codec(tool: Tool, relative: Relative, tmp_path: Path) -> None:
+    binary = tool("tar")
+    text = tmp_path / "fixture.txt"
+    shell = tmp_path / "hello.sh"
+    output = tmp_path / "output.tar"
+
+    with open(text, "w", encoding="utf-8") as stream:
+        stream.write("a" * 2048)
+    text.chmod(0o644)
+
+    with open(shell, "w", encoding="utf-8") as stream:
+        stream.write("builtin echo 'Hello, world!'")
+    shell.chmod(0o744)
+
+    cmd = (
+        binary,
+        "--sort=name",
+        "--mtime=2000-01-01T00:00Z",
+        "--owner=0",
+        "--group=0",
+        "--numeric-owner",
+        "--pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime",
+        "-cf",
+        str(output),
+        str(text.relative_to(tmp_path)),
+        str(shell.relative_to(tmp_path)),
+    )
+    env = {
+        "LC_ALL": "C",
+    }
+    result = run(cmd, timeout=30, env=env, capture_output=True, text=True, cwd=tmp_path)
+    assert 0 == result.returncode, result.stderr
+
+    with TarFile(str(output)) as archive:
+        assert archive.getnames() == [
+            str(text.relative_to(tmp_path)),
+            str(shell.relative_to(tmp_path)),
+        ]
+
+        m = archive.getmember(str(text.relative_to(tmp_path)))
+        assert m.size == 2048
+        assert m.mode == 0o644, oct(m.mode)
+        assert m.type == REGTYPE
+        assert m.uid == 0
+        assert m.gid == 0
+        assert m.mtime == 946684800
+        assert m.pax_headers == {}
+
+        m = archive.getmember(str(shell.relative_to(tmp_path)))
+        assert m.size == 28
+        assert m.mode == 0o744, oct(m.mode)
+        assert m.type == REGTYPE
+        assert m.uid == 0
+        assert m.gid == 0
+        assert m.mtime == 946684800
+        assert m.pax_headers == {}
-- 
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