From cfe7be3abe73edc7753427390c06349474e43d93 Mon Sep 17 00:00:00 2001
From: Dave Pearson <davep@davep.org>
Date: Thu, 23 Feb 2023 16:46:58 +0000
Subject: [PATCH] Some initial Checkbox unit testing

Lots more to come.
---
 tests/toggles/test_checkbox.py | 39 ++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 tests/toggles/test_checkbox.py

diff --git a/tests/toggles/test_checkbox.py b/tests/toggles/test_checkbox.py
new file mode 100644
index 000000000..ef79ccf76
--- /dev/null
+++ b/tests/toggles/test_checkbox.py
@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from textual.app import App, ComposeResult
+from textual.widgets import Checkbox
+
+
+class CheckboxApp(App[None]):
+    def __init__(self):
+        super().__init__()
+        self.events_received = []
+
+    def compose(self) -> ComposeResult:
+        yield Checkbox("Test", id="cb1")
+        yield Checkbox(id="cb2")
+        yield Checkbox(value=True, id="cb3")
+
+    def on_checkbox_changed(self, event: Checkbox.Changed) -> None:
+        self.events_received.append((event.input.id, event.input.value))
+
+
+async def test_checkbox_initial_state() -> None:
+    """The initial states of the check boxes should be as we specified."""
+    async with CheckboxApp().run_test() as pilot:
+        assert [box.value for box in pilot.app.query(Checkbox)] == [False, False, True]
+        assert pilot.app.events_received == []
+
+
+async def test_checkbox_toggle() -> None:
+    """The initial states of the check boxes should be as we specified."""
+    async with CheckboxApp().run_test() as pilot:
+        for box in pilot.app.query(Checkbox):
+            box.toggle()
+        assert [box.value for box in pilot.app.query(Checkbox)] == [True, True, False]
+        await pilot.pause()
+        assert pilot.app.events_received == [
+            ("cb1", True),
+            ("cb2", True),
+            ("cb3", False),
+        ]