test rule

Author: willmcgugan

rich/rule.py

@@ -53,7 +53,7 @@ def __console__(self, console: Console, options: ConsoleOptions) -> RenderResult
             yield rule_text
 
 
-if __name__ == "__main__":
+if __name__ == "__main__":  # pragma: no cover
     from rich.console import Console
     import sys
 

tests/test_rule.py

@@ -0,0 +1,27 @@
+import io
+
+import pytest
+
+from rich.console import Console
+from rich.rule import Rule
+from rich.text import Text
+
+
+def test_rule():
+    console = Console(width=16, file=io.StringIO(), force_terminal=True)
+    console.rule()
+    console.rule("foo")
+    console.rule(Text("foo", style="bold"))
+    console.rule("foobarbazeggfoobarbazegg")
+    expected = "\x1b[38;5;10m────────────────\x1b[0m\n\x1b[38;5;10m───── \x1b[0mfoo\x1b[38;5;10m ──────\x1b[0m\n\x1b[38;5;10m───── \x1b[0m\x1b[1mfoo\x1b[0m\x1b[38;5;10m ──────\x1b[0m\n\x1b[38;5;10m─ \x1b[0mfoobarbazegg\x1b[38;5;10m ─\x1b[0m\n"
+    assert console.file.getvalue() == expected
+
+
+def test_repr():
+    rule = Rule("foo")
+    assert isinstance(repr(rule), str)
+
+
+def test_error():
+    with pytest.raises(ValueError):
+        Rule(character="bar")