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core.whitespace: add test for diff whitespace error highlighting
This tests seletive enabling/disabling of whitespace error highlighting done by colored diff output. Signed-off-by: Junio C Hamano <gitster@pobox.com>
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t/t4019-diff-wserror.sh
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76
t/t4019-diff-wserror.sh
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#!/bin/sh
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test_description='diff whitespace error detection'
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. ./test-lib.sh
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test_expect_success setup '
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git config diff.color.whitespace "blue reverse" &&
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>F &&
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git add F &&
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echo " Eight SP indent" >>F &&
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echo " HT and SP indent" >>F &&
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echo "With trailing SP " >>F &&
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echo "No problem" >>F
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'
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blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
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test_expect_success default '
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git diff --color >output
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grep "$blue_grep" output >error
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grep -v "$blue_grep" output >normal
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With error >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -trail' '
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git config core.whitespace -trail
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git diff --color >output
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grep "$blue_grep" output >error
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grep -v "$blue_grep" output >normal
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -space' '
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git config core.whitespace -space
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git diff --color >output
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grep "$blue_grep" output >error
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grep -v "$blue_grep" output >normal
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grep Eight normal >/dev/null &&
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grep HT normal >/dev/null &&
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grep With error >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'with indent-non-tab only' '
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git config core.whitespace indent,-trailing,-space
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git diff --color >output
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grep "$blue_grep" output >error
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grep -v "$blue_grep" output >normal
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grep Eight error >/dev/null &&
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grep HT normal >/dev/null &&
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grep With normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_done
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