test for content

tests/test_content.py

@@ -0,0 +1,52 @@
+from rich.text import Text
+
+from textual.content import Content, Span
+
+
+def test_constructor():
+    content = Content("Hello, World")
+    assert content
+    assert len(content) == 12
+    assert content.cell_length == 12
+    assert content.plain == "Hello, World"
+    repr(content)
+    assert content.align == "left"
+    assert content.no_wrap is False
+    assert content.ellipsis is False
+
+
+def test_bool():
+    assert bool(Content("foo")) is True
+    assert bool(Content("")) is False
+
+
+def test_from_rich_text():
+    text = Text.from_markup("[red]Hello[/red] [blue]World[/blue]")
+    content = Content.from_rich_text(text)
+    assert len(content) == 11
+    assert content.plain == "Hello World"
+    assert [Span(start=0, end=5, style="red"), Span(start=6, end=11, style="blue")]
+
+
+def test_styled():
+    text = Content.styled("Hello", "red")
+    assert text.plain == "Hello"
+    assert len(text) == 5
+    assert text.cell_length == 5
+    assert text._spans == [Span(0, 5, "red")]
+
+
+def test_getitem():
+    content = Content("Hello, world").stylize("blue", 0, 5)
+    assert content[0].plain == "H"
+    assert content[0]._spans == [Span(0, 1, "blue")]
+    assert content[-1].plain == "d"
+    assert content[-1]._spans == []
+    assert content[:2].plain == "He"
+    assert content[:2]._spans == [Span(0, 2, "blue")]
+
+
+def test_cell_length():
+    assert Content("").cell_length == 0
+    assert Content("foo").cell_length == 3
+    assert Content("💩").cell_length == 2