long placeholder

tests/snapshot_tests/test_snapshots.py

@@ -4626,3 +4626,27 @@ def test_header_format(snap_compare):
             yield Header()
 
     assert snap_compare(HeaderApp())
+
+
+def test_long_textarea_placeholder(snap_compare) -> None:
+
+    TEXT = """I must not fear.
+Fear is the mind-killer.
+Fear is the little-death that brings total obliteration.
+I will face my fear.
+I will permit it to pass over me and through me.
+And when it has gone past, I will turn the inner eye to see its path.
+Where the fear has gone there will be nothing. Only I will remain."""
+
+    class PlaceholderApp(App):
+
+        CSS = """
+        TextArea {
+            width: 50%;
+        }
+        """
+
+        def compose(self) -> ComposeResult:
+            yield TextArea(placeholder=TEXT)
+
+    assert snap_compare(PlaceholderApp())

tests/test_content.py

@@ -349,3 +349,19 @@ def test_add_spans() -> None:
         Span(7, 9, style="blue"),
     ]
     assert content.spans == expected
+
+
+def test_wrap() -> None:
+    content = Content.from_markup("[green]Hello, [b]World, One two three[/b]")
+    wrapped = content.wrap(6)
+    print(wrapped)
+    expected = [
+        Content("Hello,", spans=[Span(0, 6, style="green")]),
+        Content("World,", spans=[Span(0, 6, style="green"), Span(0, 6, style="b")]),
+        Content("One", spans=[Span(0, 3, style="green"), Span(0, 3, style="b")]),
+        Content("two", spans=[Span(0, 3, style="green"), Span(0, 3, style="b")]),
+        Content("three", spans=[Span(0, 5, style="green"), Span(0, 5, style="b")]),
+    ]
+    assert len(wrapped) == len(expected)
+    for line1, line2 in zip(wrapped, expected):
+        assert line1.is_same(line2)