tests

CHANGELOG.md

@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+
+## Unreleased
+
+### Fixed
+
+- Fixed Text.expand_tabs not expanding spans.
+
+### Added
+
+- Added Text.extend_style method.
+
 ## [13.4.2] - 2023-06-12
 
 ### Changed

rich/text.py

@@ -565,12 +565,12 @@ def get_style_at_offset(self, console: "Console", offset: int) -> Style:
         return style
 
     def extend_style(self, spaces: int) -> None:
-        """Extend the Text and styles by a given number of spaces.
+        """Extend the Text given number of spaces where the spaces have the same style as the last character.
 
         Args:
             spaces (int): Number of spaces to add to the Text.
         """
-        if not spaces:
+        if spaces <= 0:
             return
         spans = self.spans
         new_spaces = " " * spaces

tests/test_text.py

@@ -898,3 +898,19 @@ def test_markup_property():
         == "[bold]foo [italic]bar[/bold] baz[/italic]"
     )
     assert Text("[bold]foo").markup == "\\[bold]foo"
+
+
+def test_extend_style():
+    text = Text.from_markup("[red]foo[/red] [bold]bar")
+    text.extend_style(0)
+
+    assert text.plain == "foo bar"
+    assert text.spans == [Span(0, 3, "red"), Span(4, 7, "bold")]
+
+    text.extend_style(-1)
+    assert text.plain == "foo bar"
+    assert text.spans == [Span(0, 3, "red"), Span(4, 7, "bold")]
+
+    text.extend_style(2)
+    assert text.plain == "foo bar  "
+    assert text.spans == [Span(0, 3, "red"), Span(4, 9, "bold")]