1 files changed, 58 insertions, 0 deletions
diff --git a/packages/meshbay-cli/tests/test_clipboard.py b/packages/meshbay-cli/tests/test_clipboard.py
new file mode 100644
index 0000000..6296317
--- /dev/null
+++ b/packages/meshbay-cli/tests/test_clipboard.py
@@ -0,0 +1,58 @@
+"""
+The chat's clipboard: the platform's tools, run for real, and nothing when none
+works. Fake `wl-copy`/`wl-paste` stand in for wl-clipboard, sharing one file.
+"""
+
+import shutil
+import sys
+import time
+
+import pytest
+from meshbay_cli.tui import clipboard
+
+pytestmark = pytest.mark.skipif(sys.platform in ("win32", "darwin"),
+                                reason="the Wayland and X11 tools")
+# Found before a test leaves only the fake tools on PATH.
+CAT, SLEEP = shutil.which("cat"), shutil.which("sleep")
+
+
+@pytest.fixture
+def wayland(tmp_path, monkeypatch):
+    held = tmp_path / "held"
+    bin_dir = tmp_path / "bin"
+    bin_dir.mkdir()
+    for name, body in (("wl-copy", f'{CAT} > "{held}"'), ("wl-paste", f'{CAT} "{held}"')):
+        tool = bin_dir / name
+        tool.write_text(f"#!/bin/sh\n{body}\n")
+        tool.chmod(0o755)
+    monkeypatch.setenv("PATH", str(bin_dir))
+    monkeypatch.setenv("WAYLAND_DISPLAY", "wayland-0")
+    monkeypatch.delenv("DISPLAY", raising=False)
+    return held
+
+
+async def test_what_is_copied_is_what_is_pasted(wayland):
+    assert await clipboard.write_text("héllo — 你好\nsecond") is True
+    assert wayland.read_text(encoding="utf-8") == "héllo — 你好\nsecond"
+    assert await clipboard.read_text() == "héllo — 你好\nsecond"
+
+
+async def test_no_tool_is_none_not_an_error(tmp_path, monkeypatch):
+    monkeypatch.setenv("PATH", str(tmp_path))
+    monkeypatch.setenv("WAYLAND_DISPLAY", "wayland-0")
+    monkeypatch.setenv("DISPLAY", ":0")
+    assert await clipboard.read_text() is None
+    assert await clipboard.write_text("x") is False
+
+
+async def test_a_failing_tool_is_skipped(wayland):
+    (wayland.parent / "bin" / "wl-paste").write_text("#!/bin/sh\nexit 1\n")
+    assert await clipboard.read_text() is None
+
+
+async def test_a_hanging_tool_is_given_up(wayland, monkeypatch):
+    (wayland.parent / "bin" / "wl-paste").write_text(f"#!/bin/sh\nexec {SLEEP} 30\n")
+    monkeypatch.setattr(clipboard, "TIMEOUT", 0.3)
+    started = time.monotonic()
+    assert await clipboard.read_text() is None
+    assert 0.3 <= time.monotonic() - started < 5