pytest: samba-tool visualize: improve a message

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

diff --git a/python/samba/tests/samba_tool/visualize.py b/python/samba/tests/samba_tool/visualize.py
index 9cb5312ad2f04404e3047625b0c186d00f205509..16585268d338c4e921613ae02db0b8db3e6c87a6 100644 (file)
--- a/python/samba/tests/samba_tool/visualize.py
+++ b/python/samba/tests/samba_tool/visualize.py
@@ -126,7 +126,8 @@ class SambaToolVisualizeLdif(SambaToolCmdTest):
                                               '-H', self.dburl,
                                               '-S', *args)
             self.assertCmdSuccess(result, out, err)
-            self.assertTrue(colour_re.search(out))
+            self.assertTrue(colour_re.search(out),
+                            f"'{' '.join(args)}' should be colour")
             uncoloured = colour_re.sub('', out)
 
             self.assertStringsEqual(monochrome, uncoloured, strip=True)