add test

gapic/utils/lines.py

@@ -78,6 +78,8 @@ def wrap(text: str, width: int, *, offset: int = None, indent: int = 0) -> str:
     # Break off the first line of the string to address non-zero offsets.
     first = text.split('\n')[0] + '\n'
     if len(first) > width - offset:
+        # Ensure `break_on_hyphens` is set to `False` when using
+        # `textwrap.wrap` to avoid breaking hyperlinks with hyphens.
         initial = textwrap.wrap(first,
                                 break_long_words=False,
                                 width=width - offset,
@@ -108,6 +110,8 @@ def wrap(text: str, width: int, *, offset: int = None, indent: int = 0) -> str:
     # Wrap the remainder of the string at the desired width.
     return '{first}{text}'.format(
         first=first,
+        # Ensure `break_on_hyphens` is set to `False` when using
+        # `textwrap.fill` to avoid breaking hyperlinks with hyphens.
         text='\n'.join([textwrap.fill(
             break_long_words=False,
             initial_indent=' ' * indent,

tests/unit/utils/test_lines.py

@@ -87,3 +87,6 @@ def test_wrap_indent_short():
 
 def test_wrap_short_line_preserved():
     assert lines.wrap('foo\nbar\nbaz', width=80) == 'foo\nbar\nbaz'
+
+def test_wrap_does_not_break_hyphenated_word():
+    assert lines.wrap('do-not-break', width=5) == 'do-not-break'