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ad27a6d326
Add testcases for -B and single line changes. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
241 lines
4.0 KiB
Bash
Executable File
241 lines
4.0 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2008 by Denys Vlasenko
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# Licensed under GPLv2, see file LICENSE in this source tree.
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. ./testing.sh
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# testing "test name" "commands" "expected result" "file input" "stdin"
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# diff outputs date/time in the header, which should not be analysed
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# NB: sed has tab character in s command!
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TRIM_TAB="sed 's/ .*//'"
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testing "diff of stdin" \
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"diff -u - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -1 +1,3 @@
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+qwe
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asd
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+zxc
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" \
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"qwe\nasd\nzxc\n" \
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"asd\n"
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testing "diff of stdin, no newline in the file" \
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"diff -u - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -1 +1,3 @@
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+qwe
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asd
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+zxc
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\\ No newline at end of file
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" \
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"qwe\nasd\nzxc" \
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"asd\n"
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# we also test that stdin is in fact NOT read
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testing "diff of stdin, twice" \
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'diff - -; echo $?; wc -c' \
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"0\n5\n" \
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"" \
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"stdin"
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testing "diff of empty file against stdin" \
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"diff -u - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -1 +0,0 @@
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-a
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" \
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"" \
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"a\n"
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testing "diff of empty file against nonempty one" \
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"diff -u - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -0,0 +1 @@
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+a
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" \
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"a\n" \
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""
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testing "diff -b treats EOF as whitespace" \
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'diff -ub - input; echo $?' \
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"0\n" \
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"abc" \
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"abc "
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testing "diff -b treats all spaces as equal" \
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'diff -ub - input; echo $?' \
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"0\n" \
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"a \t c\n" \
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"a\t \tc\n"
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testing "diff -B ignores changes whose lines are all blank" \
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'diff -uB - input; echo $?' \
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"0\n" \
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"a\n" \
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"\na\n\n"
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testing "diff -B does not ignore changes whose lines are not all blank" \
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"diff -uB - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -1,3 +1 @@
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-
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-b
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-
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+a
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" \
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"a\n" \
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"\nb\n\n"
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testing "diff -B ignores blank single line change" \
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'diff -qB - input; echo $?' \
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"0\n" \
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"\n1\n" \
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"1\n"
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testing "diff -B does not ignore non-blank single line change" \
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'diff -qB - input; echo $?' \
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"Files - and input differ\n1\n" \
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"0\n" \
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"1\n"
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testing "diff always takes context from old file" \
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"diff -ub - input | $TRIM_TAB" \
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"\
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--- -
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+++ input
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@@ -1 +1,3 @@
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+abc
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a c
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+def
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" \
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"abc\na c\ndef\n" \
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"a c\n"
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# testing "test name" "commands" "expected result" "file input" "stdin"
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# clean up
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rm -rf diff1 diff2
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mkdir diff1 diff2 diff2/subdir
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echo qwe >diff1/-
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echo asd >diff2/subdir/-
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optional FEATURE_DIFF_DIR
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testing "diff diff1 diff2/subdir" \
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"diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/subdir/-
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@@ -1 +1 @@
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-qwe
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+asd
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" \
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"" ""
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SKIP=
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# using directory structure from prev test...
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optional FEATURE_DIFF_DIR
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testing "diff dir dir2/file/-" \
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"diff -ur diff1 diff2/subdir/- | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/subdir/-
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@@ -1 +1 @@
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-qwe
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+asd
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" \
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"" ""
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SKIP=
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# using directory structure from prev test...
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mkdir diff1/test
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mkfifo diff2/subdir/test
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optional FEATURE_DIFF_DIR
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testing "diff of dir and fifo" \
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"diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/subdir/-
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@@ -1 +1 @@
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-qwe
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+asd
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Only in diff2/subdir: test
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" \
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"" ""
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SKIP=
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# using directory structure from prev test...
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rmdir diff1/test
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echo >diff1/test
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optional FEATURE_DIFF_DIR
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testing "diff of file and fifo" \
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"diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/subdir/-
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@@ -1 +1 @@
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-qwe
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+asd
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File diff2/subdir/test is not a regular file or directory and was skipped
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" \
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"" ""
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SKIP=
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# using directory structure from prev test...
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mkfifo diff1/test2
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optional FEATURE_DIFF_DIR
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testing "diff -rN does not read non-regular files" \
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"diff -urN diff1 diff2/subdir | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/subdir/-
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@@ -1 +1 @@
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-qwe
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+asd
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File diff2/subdir/test is not a regular file or directory and was skipped
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File diff1/test2 is not a regular file or directory and was skipped
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" \
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"" ""
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SKIP=
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# clean up
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rm -rf diff1 diff2
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# NOT using directory structure from prev test...
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mkdir diff1 diff2
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echo qwe >diff1/-
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echo rty >diff2/-
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optional FEATURE_DIFF_DIR
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testing "diff diff1 diff2/" \
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"diff -ur diff1 diff2/ | $TRIM_TAB; diff -ur .///diff1 diff2//// | $TRIM_TAB" \
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"\
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--- diff1/-
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+++ diff2/-
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@@ -1 +1 @@
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-qwe
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+rty
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--- .///diff1/-
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+++ diff2////-
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@@ -1 +1 @@
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-qwe
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+rty
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" \
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"" ""
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SKIP=
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# clean up
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rm -rf diff1 diff2
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exit $FAILCOUNT
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