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#!/bin/sh
# Test the --no-dereference option.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
echo 'Simple contents' > regular1
echo 'Sample contents' > regular2
echo 'Sample contents' > regular3
ln -s regular1 symlink1
ln -s regular1 symlink1bis
ln -s regular2 symlink2
ln -s regular3 symlink3
# Non-recursive comparisons.
# Test case 3: Compare regular file with regular file.
returns_ 1 diff --no-dereference regular1 regular2 > out || fail=1
cat <<EOF > expected || framework_failure_
1c1
< Simple contents
---
> Sample contents
EOF
compare expected out || fail=1
# Test case 4: Compare regular file with symbolic link.
returns_ 1 diff --no-dereference regular1 symlink1 > out || fail=1
cat <<EOF > expected || framework_failure_
File regular1 is a regular file while file symlink1 is a symbolic link
EOF
compare expected out || fail=1
# Test case 5: Compare symbolic link with regular file.
returns_ 1 diff --no-dereference symlink1 regular1 > out || fail=1
cat <<EOF > expected || framework_failure_
File symlink1 is a symbolic link while file regular1 is a regular file
EOF
compare expected out || fail=1
# Test case 6: Compare symbolic links with same value.
diff --no-dereference symlink1 symlink1bis > out || fail=1
compare /dev/null out || fail=1
# Test case 7: Compare symbolic links with different value and different target
# contents.
returns_ 1 diff --no-dereference symlink1 symlink2 > out || fail=1
cat <<EOF > expected || framework_failure_
Symbolic links symlink1 and symlink2 differ
EOF
compare expected out || fail=1
# Test case 8: Compare symbolic links with different value and same target
# contents.
returns_ 1 diff --no-dereference symlink2 symlink3 > out || fail=1
cat <<EOF > expected || framework_failure_
Symbolic links symlink2 and symlink3 differ
EOF
compare expected out || fail=1
# Recursive comparisons.
# Test case 1: Compare symbolic link with nonexistent file.
mkdir subdir1a
mkdir subdir1b
ln -s nonexistent subdir1a/foo
ln -s ../regular1 subdir1a/bar
returns_ 1 diff -r --no-dereference subdir1a subdir1b > out || fail=1
cat <<EOF > expected || framework_failure_
Only in subdir1a: bar
Only in subdir1a: foo
EOF
compare expected out || fail=1
# Test case 1: Compare nonexistent file with symbolic link.
mkdir subdir2a
mkdir subdir2b
ln -s nonexistent subdir2b/foo
ln -s ../regular1 subdir2b/bar
returns_ 1 diff -r --no-dereference subdir2a subdir2b > out || fail=1
cat <<EOF > expected || framework_failure_
Only in subdir2b: bar
Only in subdir2b: foo
EOF
compare expected out || fail=1
# Test case 3: Compare regular file with regular file.
mkdir subdir3a
mkdir subdir3b
cp regular1 subdir3a/foo
cp regular2 subdir3b/foo
returns_ 1 diff -r --no-dereference subdir3a subdir3b > out || fail=1
cat <<EOF > expected || framework_failure_
diff -r --no-dereference subdir3a/foo subdir3b/foo
1c1
< Simple contents
---
> Sample contents
EOF
compare expected out || fail=1
# Test case 4: Compare regular file with symbolic link.
mkdir subdir4a
mkdir subdir4b
cp regular1 subdir4a/foo
ln -s ../regular1 subdir4b/foo
returns_ 1 diff -r --no-dereference subdir4a subdir4b > out || fail=1
cat <<EOF > expected || framework_failure_
File subdir4a/foo is a regular file while file subdir4b/foo is a symbolic link
EOF
compare expected out || fail=1
# Test case 5: Compare symbolic link with regular file.
mkdir subdir5a
mkdir subdir5b
ln -s ../regular1 subdir5a/foo
cp regular1 subdir5b/foo
returns_ 1 diff -r --no-dereference subdir5a subdir5b > out || fail=1
cat <<EOF > expected || framework_failure_
File subdir5a/foo is a symbolic link while file subdir5b/foo is a regular file
EOF
compare expected out || fail=1
# Test case 6: Compare symbolic links with same value.
mkdir subdir6a
mkdir subdir6b
ln -s ../regular1 subdir6a/foo
ln -s ../regular1 subdir6b/foo
diff -r --no-dereference subdir6a subdir6b > out || fail=1
compare /dev/null out || fail=1
# Test case 7: Compare symbolic links with different value and different target
# contents.
mkdir subdir7a
mkdir subdir7b
ln -s ../regular1 subdir7a/foo
ln -s ../regular2 subdir7b/foo
returns_ 1 diff -r --no-dereference subdir7a subdir7b > out || fail=1
cat <<EOF > expected || framework_failure_
Symbolic links subdir7a/foo and subdir7b/foo differ
EOF
compare expected out || fail=1
# Test case 8: Compare symbolic links with different value and same target
# contents.
mkdir subdir8a
mkdir subdir8b
ln -s ../regular2 subdir8a/foo
ln -s ../regular3 subdir8b/foo
returns_ 1 diff -r --no-dereference subdir8a subdir8b > out || fail=1
cat <<EOF > expected || framework_failure_
Symbolic links subdir8a/foo and subdir8b/foo differ
EOF
compare expected out || fail=1
Exit $fail
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