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From: Phillip Wood <phillip.wood@talktalk.net>
To: Git Mailing List <git@vger.kernel.org>,
	Stefan Beller <sbeller@google.com>,
	Junio C Hamano <gitster@pobox.com>
Cc: Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: [PATCH v2 4/9] diff --color-moved-ws: demonstrate false positives
Date: Fri, 23 Nov 2018 11:16:53 +0000	[thread overview]
Message-ID: <20181123111658.30342-5-phillip.wood@talktalk.net> (raw)
In-Reply-To: <20181123111658.30342-1-phillip.wood@talktalk.net>

From: Phillip Wood <phillip.wood@dunelm.org.uk>

'diff --color-moved-ws=allow-indentation-change' can highlight lines
that have internal whitespace changes rather than indentation
changes. For example in commit 1a07e59c3e ("Update messages in
preparation for i18n", 2018-07-21) the lines

-               die (_("must end with a color"));
+               die(_("must end with a color"));

are highlighted as moved when they should not be. Modify an existing
test to show the problem that will be fixed in the next commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 t/t4015-diff-whitespace.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index a9fb226c5a..eee81a1987 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -1809,7 +1809,7 @@ test_expect_success 'only move detection ignores white spaces' '
 	test_cmp expected actual
 '
 
-test_expect_success 'compare whitespace delta across moved blocks' '
+test_expect_failure 'compare whitespace delta across moved blocks' '
 
 	git reset --hard &&
 	q_to_tab <<-\EOF >text.txt &&
@@ -1827,6 +1827,7 @@ test_expect_success 'compare whitespace delta across moved blocks' '
 	QQQthat has similar lines
 	QQQto previous blocks, but with different indent
 	QQQYetQAnotherQoutlierQ
+	QLine with internal w h i t e s p a c e change
 	EOF
 
 	git add text.txt &&
@@ -1847,6 +1848,7 @@ test_expect_success 'compare whitespace delta across moved blocks' '
 	QQthat has similar lines
 	QQto previous blocks, but with different indent
 	QQYetQAnotherQoutlier
+	QLine with internal whitespace change
 	EOF
 
 	git diff --color --color-moved --color-moved-ws=allow-indentation-change >actual.raw &&
@@ -1856,7 +1858,7 @@ test_expect_success 'compare whitespace delta across moved blocks' '
 		<BOLD>diff --git a/text.txt b/text.txt<RESET>
 		<BOLD>--- a/text.txt<RESET>
 		<BOLD>+++ b/text.txt<RESET>
-		<CYAN>@@ -1,14 +1,14 @@<RESET>
+		<CYAN>@@ -1,15 +1,15 @@<RESET>
 		<BOLD;MAGENTA>-QIndented<RESET>
 		<BOLD;MAGENTA>-QText across<RESET>
 		<BOLD;MAGENTA>-Qsome lines<RESET>
@@ -1871,6 +1873,7 @@ test_expect_success 'compare whitespace delta across moved blocks' '
 		<BOLD;MAGENTA>-QQQthat has similar lines<RESET>
 		<BOLD;MAGENTA>-QQQto previous blocks, but with different indent<RESET>
 		<RED>-QQQYetQAnotherQoutlierQ<RESET>
+		<RED>-QLine with internal w h i t e s p a c e change<RESET>
 		<BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Indented<RESET>
 		<BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Text across<RESET>
 		<BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>some lines<RESET>
@@ -1885,6 +1888,7 @@ test_expect_success 'compare whitespace delta across moved blocks' '
 		<BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>that has similar lines<RESET>
 		<BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>to previous blocks, but with different indent<RESET>
 		<GREEN>+<RESET>QQ<GREEN>YetQAnotherQoutlier<RESET>
+		<GREEN>+<RESET>Q<GREEN>Line with internal whitespace change<RESET>
 	EOF
 
 	test_cmp expected actual
-- 
2.19.1.1690.g258b440b18


  parent reply	other threads:[~2018-11-23 11:17 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-24 10:06 [RFC PATCH 0/3] diff --color-moved-ws: allow mixed spaces and tabs in indentation change Phillip Wood
2018-09-24 10:06 ` [RFC PATCH 1/3] xdiff-interface: make xdl_blankline() available Phillip Wood
2018-09-24 23:19   ` Stefan Beller
2018-09-24 10:06 ` [RFC PATCH 2/3] diff.c: remove unused variables Phillip Wood
2018-09-24 10:06 ` [RFC PATCH 3/3] diff: add --color-moved-ws=allow-mixed-indentation-change Phillip Wood
2018-09-25  1:07   ` Stefan Beller
2018-10-09  9:50     ` Phillip Wood
2018-10-09 21:10       ` Stefan Beller
2018-10-10 15:26         ` Phillip Wood
2018-10-10 18:05           ` Stefan Beller
2018-09-24 11:03 ` [RFC PATCH 0/3] diff --color-moved-ws: allow mixed spaces and tabs in indentation change Phillip Wood
2018-11-16 11:03 ` [PATCH v1 0/9] diff --color-moved-ws fixes and enhancment Phillip Wood
2018-11-16 11:03   ` [PATCH v1 1/9] diff: document --no-color-moved Phillip Wood
2018-11-16 11:03   ` [PATCH v1 2/9] diff: use whitespace consistently Phillip Wood
2018-11-16 18:29     ` Stefan Beller
2018-11-16 11:03   ` [PATCH v1 3/9] diff: allow --no-color-moved-ws Phillip Wood
2018-11-16 11:03   ` [PATCH v1 4/9] diff --color-moved-ws: demonstrate false positives Phillip Wood
2018-11-16 11:03   ` [PATCH v1 5/9] diff --color-moved-ws: fix " Phillip Wood
2018-11-16 11:03   ` [PATCH v1 6/9] diff --color-moved=zebra: be stricter with color alternation Phillip Wood
2018-11-16 11:03   ` [PATCH v1 7/9] diff --color-moved-ws: optimize allow-indentation-change Phillip Wood
2018-11-16 20:40     ` Stefan Beller
2018-11-17 14:52       ` Phillip Wood
2018-11-16 11:03   ` [PATCH v1 8/9] diff --color-moved-ws: modify allow-indentation-change Phillip Wood
2018-11-16 21:47     ` Stefan Beller
2018-11-17 14:59       ` Phillip Wood
2018-11-16 11:03   ` [PATCH v1 9/9] diff --color-moved-ws: handle blank lines Phillip Wood
2018-11-20 18:05     ` Stefan Beller
2018-11-21 15:49       ` Phillip Wood
2018-11-23 11:16 ` [PATCH v2 0/9] diff --color-moved-ws fixes and enhancment Phillip Wood
2018-11-23 11:16   ` [PATCH v2 1/9] diff: document --no-color-moved Phillip Wood
2018-11-23 11:16   ` [PATCH v2 2/9] Use "whitespace" consistently Phillip Wood
2018-11-23 11:16   ` [PATCH v2 3/9] diff: allow --no-color-moved-ws Phillip Wood
2018-11-23 11:16   ` Phillip Wood [this message]
2018-11-23 11:16   ` [PATCH v2 5/9] diff --color-moved-ws: fix false positives Phillip Wood
2018-11-23 11:16   ` [PATCH v2 6/9] diff --color-moved=zebra: be stricter with color alternation Phillip Wood
2018-11-23 11:16   ` [PATCH v2 7/9] diff --color-moved-ws: optimize allow-indentation-change Phillip Wood
2018-11-23 11:16   ` [PATCH v2 8/9] diff --color-moved-ws: modify allow-indentation-change Phillip Wood
2018-11-23 11:16   ` [PATCH v2 9/9] diff --color-moved-ws: handle blank lines Phillip Wood
2018-11-26 21:20   ` [PATCH v2 0/9] diff --color-moved-ws fixes and enhancment Stefan Beller
2018-11-27 20:52     ` Phillip Wood
2019-01-08 16:22   ` Phillip Wood
2019-01-08 18:31     ` Junio C Hamano
2019-01-10  0:37       ` Stefan Beller
2019-01-10 18:39         ` Junio C Hamano

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