add a regression test for alignment of decimal numbers with commas (PR …

…#51)

test/test_regression.py

@@ -272,6 +272,18 @@ def test_alignment_of_decimal_numbers_with_ansi_color():
     assert_equal(result, expected)
 
 
+def test_alignment_of_decimal_numbers_with_commas():
+    "Regression: alignment for decimal numbers with comma separators"
+    stuff={"first": ["c1r1", "c1r2"], "second": [14502.05, 105]}
+    result = tabulate(stuff, tablefmt="grid", floatfmt=',.2f')
+    expected = "\n".join(
+        ['+------+-----------+', '| c1r1 | 14,502.05 |',
+        '+------+-----------+', '| c1r2 |    105.00 |',
+        '+------+-----------+']
+    )
+    assert_equal(result, expected)
+
+
 def test_long_integers():
     "Regression: long integers should be printed as integers (issue #48)"
     table = [[18446744073709551614]]