Coffee please (#2316)

* Coffee please

* Add unit tests

tests/test_coffee.py

@@ -0,0 +1,48 @@
+import logging
+
+from unittest.mock import patch
+
+import pytest
+
+from sanic.application.logo import COFFEE_LOGO, get_logo
+from sanic.exceptions import SanicException
+
+
+def has_sugar(value):
+    if value:
+        raise SanicException("I said no sugar please")
+
+    return False
+
+
+@pytest.mark.parametrize("sugar", (True, False))
+def test_no_sugar(sugar):
+    if sugar:
+        with pytest.raises(SanicException):
+            assert has_sugar(sugar)
+    else:
+        assert not has_sugar(sugar)
+
+
+def test_get_logo_returns_expected_logo():
+    with patch("sys.stdout.isatty") as isatty:
+        isatty.return_value = True
+        logo = get_logo(coffee=True)
+    assert logo is COFFEE_LOGO
+
+
+def test_logo_true(app, caplog):
+    @app.after_server_start
+    async def shutdown(*_):
+        app.stop()
+
+    with patch("sys.stdout.isatty") as isatty:
+        isatty.return_value = True
+        with caplog.at_level(logging.DEBUG):
+            app.make_coffee()
+
+    # Only in the regular logo
+    assert "    ▄███ █████ ██    " not in caplog.text
+
+    # Only in the coffee logo
+    assert "    ██       ██▀▀▄   " in caplog.text