Add Discord embed unit tests for safe send behavior

test/test_discord_embeds.py

@@ -0,0 +1,46 @@
+import pytest
+
+pytest.importorskip("discord")
+
+import discord
+
+from config import Config
+from messages.discord_embeds import DiscordEmbeds
+
+
+class _DummyWebhook:
+    def __init__(self):
+        self.calls = []
+
+    def send(self, **kwargs):
+        self.calls.append(kwargs)
+
+
+def _build_embeds(monkeypatch):
+    # Prevent tests from constructing a real webhook from local config.
+    monkeypatch.setattr(DiscordEmbeds, "_get_webhook", lambda self, hook_url: None)
+    return DiscordEmbeds()
+
+
+def test_send_embed_ignores_none_embed(monkeypatch):
+    embeds = _build_embeds(monkeypatch)
+    webhook = _DummyWebhook()
+
+    embeds._send_embed(None, webhook)
+
+    assert len(webhook.calls) == 0
+
+
+def test_send_embed_sends_valid_embed(monkeypatch):
+    embeds = _build_embeds(monkeypatch)
+    webhook = _DummyWebhook()
+    embed = discord.Embed(title="Update", description="Test", color=discord.Color.blue())
+
+    embeds._send_embed(embed, webhook)
+
+    assert len(webhook.calls) == 1
+    call = webhook.calls[0]
+    assert call["embed"] is embed
+    assert call["username"] == Config().general["name"]
+    assert embed.footer.text.startswith("Botty v.")
+    assert embed.timestamp is not None