82ebb0b6ec
Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
158 lines
2.7 KiB
Bash
Executable File
158 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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test_description='common tail optimization'
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. ./test-lib.sh
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z=zzzzzzzz ;# 8
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z="$z$z$z$z$z$z$z$z" ;# 64
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z="$z$z$z$z$z$z$z$z" ;# 512
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z="$z$z$z$z" ;# 2048
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z2047=$(expr "$z" : '.\(.*\)') ; #2047
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x=zzzzzzzzzz ;# 10
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y="$x$x$x$x$x$x$x$x$x$x" ;# 100
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z="$y$y$y$y$y$y$y$y$y$y" ;# 1000
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z1000=$z
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z100=$y
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z10=$x
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zs() {
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count="$1"
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while test "$count" -ge 1000
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do
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count=$(($count - 1000))
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printf "%s" $z1000
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done
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while test "$count" -ge 100
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do
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count=$(($count - 100))
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printf "%s" $z100
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done
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while test "$count" -ge 10
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do
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count=$(($count - 10))
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printf "%s" $z10
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done
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while test "$count" -ge 1
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do
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count=$(($count - 1))
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printf "z"
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done
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}
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zc () {
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sed -e "/^index/d" \
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-e "s/$z1000/Q/g" \
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-e "s/QQQQQQQQQ/Z9000/g" \
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-e "s/QQQQQQQQ/Z8000/g" \
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-e "s/QQQQQQQ/Z7000/g" \
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-e "s/QQQQQQ/Z6000/g" \
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-e "s/QQQQQ/Z5000/g" \
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-e "s/QQQQ/Z4000/g" \
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-e "s/QQQ/Z3000/g" \
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-e "s/QQ/Z2000/g" \
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-e "s/Q/Z1000/g" \
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-e "s/$z100/Q/g" \
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-e "s/QQQQQQQQQ/Z900/g" \
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-e "s/QQQQQQQQ/Z800/g" \
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-e "s/QQQQQQQ/Z700/g" \
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-e "s/QQQQQQ/Z600/g" \
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-e "s/QQQQQ/Z500/g" \
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-e "s/QQQQ/Z400/g" \
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-e "s/QQQ/Z300/g" \
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-e "s/QQ/Z200/g" \
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-e "s/Q/Z100/g" \
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-e "s/000Z//g" \
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-e "s/$z10/Q/g" \
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-e "s/QQQQQQQQQ/Z90/g" \
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-e "s/QQQQQQQQ/Z80/g" \
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-e "s/QQQQQQQ/Z70/g" \
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-e "s/QQQQQQ/Z60/g" \
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-e "s/QQQQQ/Z50/g" \
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-e "s/QQQQ/Z40/g" \
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-e "s/QQQ/Z30/g" \
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-e "s/QQ/Z20/g" \
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-e "s/Q/Z10/g" \
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-e "s/00Z//g" \
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-e "s/z/Q/g" \
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-e "s/QQQQQQQQQ/Z9/g" \
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-e "s/QQQQQQQQ/Z8/g" \
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-e "s/QQQQQQQ/Z7/g" \
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-e "s/QQQQQQ/Z6/g" \
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-e "s/QQQQQ/Z5/g" \
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-e "s/QQQQ/Z4/g" \
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-e "s/QQQ/Z3/g" \
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-e "s/QQ/Z2/g" \
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-e "s/Q/Z1/g" \
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-e "s/0Z//g" \
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;
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}
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expect_pattern () {
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cnt="$1"
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cat <<EOF
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diff --git a/file-a$cnt b/file-a$cnt
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--- a/file-a$cnt
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+++ b/file-a$cnt
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@@ -1 +1 @@
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-Z${cnt}a
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+Z${cnt}A
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diff --git a/file-b$cnt b/file-b$cnt
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--- a/file-b$cnt
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+++ b/file-b$cnt
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@@ -1 +1 @@
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-b
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+B
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diff --git a/file-c$cnt b/file-c$cnt
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--- a/file-c$cnt
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+++ b/file-c$cnt
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@@ -1 +1 @@
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-cZ$cnt
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\ No newline at end of file
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+CZ$cnt
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\ No newline at end of file
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diff --git a/file-d$cnt b/file-d$cnt
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--- a/file-d$cnt
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+++ b/file-d$cnt
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@@ -1 +1 @@
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-d
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+D
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EOF
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}
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sample='1023 1024 1025 2047 4095'
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test_expect_success setup '
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for n in $sample
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do
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( zs $n ; echo a ) >file-a$n &&
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( echo b; zs $n; echo ) >file-b$n &&
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( printf c; zs $n ) >file-c$n &&
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( echo d; zs $n ) >file-d$n &&
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git add file-a$n file-b$n file-c$n file-d$n &&
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( zs $n ; echo A ) >file-a$n &&
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( echo B; zs $n; echo ) >file-b$n &&
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( printf C; zs $n ) >file-c$n &&
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( echo D; zs $n ) >file-d$n &&
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expect_pattern $n || break
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done >expect
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'
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test_expect_success 'diff -U0' '
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for n in $sample
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do
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git diff -U0 file-?$n
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done | zc >actual &&
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test_cmp expect actual
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'
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test_done
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