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Diffstat (limited to 'src/vcdiff_test.sh')
| -rwxr-xr-x | src/vcdiff_test.sh | 528 |
1 files changed, 528 insertions, 0 deletions
diff --git a/src/vcdiff_test.sh b/src/vcdiff_test.sh new file mode 100755 index 0000000..6b5179b --- /dev/null +++ b/src/vcdiff_test.sh @@ -0,0 +1,528 @@ +#!/bin/bash +# +# Copyright 2008 Google Inc. +# Author: Lincoln Smith +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http:#www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# This script tests the correctness of the vcdiff command-line executable. +# If you add a new test here, please add the same test to the Windows script +# vsprojects/vcdiff_test.bat. +# +# The caller should set the environment variable $srcdir to the root directory +# of the open-vcdiff package. ($srcdir is automatically provided by Automake +# when this script is run by "make check".) + +# Find input files +VCDIFF=./vcdiff +# These options are only needed for the encoder; +# the decoder will recognize the interleaved and checksum formats +# without needing to specify any options. +VCD_OPTIONS="-interleaved -checksum" +DICTIONARY_FILE=$srcdir/testdata/configure.ac.v0.1 +TARGET_FILE=$srcdir/testdata/configure.ac.v0.2 +TEST_TMPDIR=${TMPDIR-/tmp} +DELTA_FILE=$TEST_TMPDIR/configure.ac.vcdiff +OUTPUT_TARGET_FILE=$TEST_TMPDIR/configure.ac.output +MALICIOUS_ENCODING=$srcdir/testdata/allocates_4gb.vcdiff + +# vcdiff with no arguments shows usage information & error result +$VCDIFF \ +&& { echo "vcdiff with no arguments should fail, but succeeded"; \ + exit 1; } +echo "Test 1 ok"; + +# vcdiff with three arguments but without "encode" or "decode" +# shows usage information & error result +$VCDIFF $VCD_OPTIONS \ + -dictionary $DICTIONARY_FILE -target $TARGET_FILE -delta $DELTA_FILE \ +&& { echo "vcdiff without operation argument should fail, but succeeded"; \ + exit 1; } +echo "Test 2 ok"; + +# vcdiff with all three arguments. Verify that output file matches target file +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ +|| { echo "Encode with three arguments failed"; \ + exit 1; } +$VCDIFF decode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE \ +|| { echo "Decode with three arguments failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 3 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# vcdiff using stdin/stdout. Verify that output file matches target file +{ $VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + < $TARGET_FILE \ + > $DELTA_FILE; } \ +|| { echo "Encode using stdin/stdout failed"; \ + exit 1; } +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + < $DELTA_FILE \ + > $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode using stdin/stdout failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 4 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# vcdiff with mixed stdin/stdout. +{ $VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + > $DELTA_FILE; } \ +|| { echo "Encode with mixed arguments failed"; \ + exit 1; } +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + > $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode with mixed arguments failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 5 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +{ $VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + < $TARGET_FILE \ + -delta $DELTA_FILE; } \ +|| { echo "Encode with mixed arguments failed"; \ + exit 1; } +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + < $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode with mixed arguments failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 6 ok"; + +rm $OUTPUT_TARGET_FILE +# Don't remove $DELTA_FILE; use it for the next test + +# If using the wrong dictionary, and dictionary is smaller than the original +# dictionary, vcdiff will spot the mistake and return an error. (It can't +# detect the case where the wrong dictionary is larger than the right one.) +$VCDIFF decode -dictionary $TARGET_FILE \ + -delta $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE \ +&& { echo "Decode using larger dictionary should fail, but succeeded"; \ + exit 1; } +echo "Test 7 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# "vcdiff test" with all three arguments. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ +|| { echo "vcdiff test with three arguments failed"; \ + exit 1; } +echo "Test 8 ok"; + +rm $DELTA_FILE + +# Dictionary file not found. +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $TEST_TMPDIR/nonexistent_file \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ +&& { echo "vcdiff with missing dictionary file should fail, but succeeded"; \ + exit 1; } +echo "Test 9 ok"; + +# Target file not found. +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TEST_TMPDIR/nonexistent_file \ + -delta $DELTA_FILE \ +&& { echo "vcdiff with missing target file should fail, but succeeded"; \ + exit 1; } +echo "Test 10 ok"; + +# Delta file not found. +$VCDIFF decode -dictionary $DICTIONARY_FILE \ + -delta $TEST_TMPDIR/nonexistent_file \ + -target $OUTPUT_TARGET_FILE \ +&& { echo "vcdiff with missing delta file should fail, but succeeded"; \ + exit 1; } +echo "Test 11 ok"; + +# Try traversing an infinite loop of symbolic links. +ln -s $TEST_TMPDIR/infinite_loop1 $TEST_TMPDIR/infinite_loop2 +ln -s $TEST_TMPDIR/infinite_loop2 $TEST_TMPDIR/infinite_loop1 +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $TEST_TMPDIR/infinite_loop1 \ + -target $TEST_TMPDIR/infinite_loop2 \ + -delta $DELTA_FILE \ +&& { echo "vcdiff with symbolic link loop should fail, but succeeded"; \ + exit 1; } +echo "Test 12 ok"; + +rm $TEST_TMPDIR/infinite_loop1 $TEST_TMPDIR/infinite_loop2 + +# Test using -stats flag +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -stats \ +|| { echo "Encode with -stats failed"; \ + exit 1; } +$VCDIFF -stats \ + decode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE \ +|| { echo "Decode with -stats failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 13 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# Using /dev/null as dictionary should work, but (because dictionary is empty) +# it will not produce a small delta file. +$VCDIFF $VCD_OPTIONS \ + test -dictionary /dev/null \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -stats \ +|| { echo "vcdiff test with /dev/null as dictionary failed"; \ + exit 1; } +echo "Test 14 ok"; + +rm $DELTA_FILE + +# Using /dev/kmem as dictionary or target should produce an error +# (permission denied, or too large, or special file type) +$VCDIFF $VCD_OPTIONS \ + encode -dictionary /dev/kmem \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ +&& { echo "vcdiff with /dev/kmem as dictionary should fail, but succeeded"; \ + exit 1; } +echo "Test 15 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target /dev/kmem \ + -delta $DELTA_FILE \ +&& { echo "vcdiff with /dev/kmem as target should fail, but succeeded"; \ + exit 1; } +echo "Test 16 ok"; + +# Decode using something that isn't a delta file +$VCDIFF decode -dictionary $DICTIONARY_FILE \ + -delta /etc/fstab \ + -target $OUTPUT_TARGET_FILE \ +&& { echo "vcdiff with invalid delta file should fail, but succeeded"; \ + exit 1; } +echo "Test 17 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -dictionary \ +&& { echo "-dictionary option with no file name should fail, but succeeded"; \ + exit 1; } +echo "Test 18 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + -target \ +&& { echo "-target option with no file name should fail, but succeeded"; \ + exit 1; } +echo "Test 19 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta \ +&& { echo "-delta option with no file name should fail, but succeeded"; \ + exit 1; } +echo "Test 20 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -buffersize \ +&& { echo "-buffersize option with no argument should fail, but succeeded"; \ + exit 1; } +echo "Test 21 ok"; + +# Using -buffersize=1 should still work. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -buffersize 1 \ + -stats \ +|| { echo "vcdiff test with -buffersize=1 failed"; \ + exit 1; } +echo "Test 22 ok"; + +rm $DELTA_FILE + +# Using -buffersize=1 with stdin/stdout means that vcdiff +# will create a separate target window for each byte read. +{ $VCDIFF encode -dictionary $DICTIONARY_FILE \ + -buffersize 1 \ + -stats \ + < $TARGET_FILE \ + > $DELTA_FILE; } \ +|| { echo "Encode using stdin/stdout with -buffersize=1 failed"; \ + exit 1; } +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + -buffersize 1 \ + -stats \ + < $DELTA_FILE \ + > $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode using stdin/stdout with -buffersize=1 failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original with -buffersize=1"; \ + exit 1; } +echo "Test 23 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# Using -buffersize=0 should fail. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -buffersize 0 \ +&& { echo "vcdiff test with -buffersize=0 should fail, but succeeded"; \ + exit 1; } +echo "Test 24 ok"; + +rm $DELTA_FILE + +# Using -buffersize=128M (larger than default maximum) should still work. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -buffersize 134217728 \ + -stats \ +|| { echo "vcdiff test with -buffersize=128M failed"; \ + exit 1; } +echo "Test 25 ok"; + +rm $DELTA_FILE + +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -froobish \ +&& { echo "vdiff test with unrecognized option should fail, but succeeded"; \ + exit 1; } +echo "Test 26 ok"; + +$VCDIFF $VCD_OPTIONS \ + encode -target $TARGET_FILE \ + -delta $DELTA_FILE \ +&& { echo "encode with no dictionary option should fail, but succeeded"; \ + exit 1; } +echo "Test 27 ok"; + +$VCDIFF decode -target $TARGET_FILE \ + -delta $DELTA_FILE \ +&& { echo "decode with no dictionary option should fail, but succeeded"; \ + exit 1; } +echo "Test 28 ok"; + +# Remove -interleaved and -checksum options +{ $VCDIFF encode -dictionary $DICTIONARY_FILE \ + < $TARGET_FILE \ + > $DELTA_FILE; } \ +|| { echo "Encode without -interleaved and -checksum options failed"; \ + exit 1; } +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + < $DELTA_FILE \ + > $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode non-interleaved output failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original with -interleaved"; \ + exit 1; } +echo "Test 29 ok"; + +# -target_matches option +{ $VCDIFF encode -dictionary $DICTIONARY_FILE \ + -target_matches \ + -stats \ + < $TARGET_FILE \ + > $DELTA_FILE; } \ +|| { echo "Encode with -target_matches option failed"; \ + exit 1; } +# The decode operation ignores the -target_matches option. +{ $VCDIFF decode -dictionary $DICTIONARY_FILE \ + < $DELTA_FILE \ + > $OUTPUT_TARGET_FILE; } \ +|| { echo "Decode output failed with -target_matches"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original with -target_matches"; \ + exit 1; } +echo "Test 30 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +$VCDIFF $VCD_OPTIONS \ + dencode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ +&& { echo "vdiff with unrecognized action should fail, but succeeded"; \ + exit 1; } +echo "Test 31 ok"; + +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ +&& { echo "vdiff test without delta option should fail, but succeeded"; \ + exit 1; } +echo "Test 32 ok"; + +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ +&& { echo "vdiff test without target option should fail, but succeeded"; \ + exit 1; } +echo "Test 33 ok"; + +# open-vcdiff bug 8 (http://code.google.com/p/open-vcdiff/issues/detail?id=8) +# A malicious encoding that tries to produce a 4GB target file made up of 64 +# windows, each window having a size of 64MB. +# Limit memory usage to 256MB per process, so the test doesn't take forever +# to run out of memory. +OLD_ULIMIT=$(ulimit -v) +echo "Old ulimit: $OLD_ULIMIT" +ulimit -S -v 262144 +echo "New ulimit: $(ulimit -v)" + +$VCDIFF $VCD_OPTIONS \ + decode -dictionary $DICTIONARY_FILE \ + -delta $MALICIOUS_ENCODING \ + -target /dev/null \ + -max_target_file_size=65536 \ +&& { echo "Decoding malicious file should fail, but succeeded"; \ + exit 1; } +echo "Test 34 ok"; + +$VCDIFF $VCD_OPTIONS \ + decode -dictionary $DICTIONARY_FILE \ + -delta $MALICIOUS_ENCODING \ + -target /dev/null \ + -max_target_window_size=65536 \ +&& { echo "Decoding malicious file should fail, but succeeded"; \ + exit 1; } +echo "Test 35 ok"; + +ulimit -S -v $OLD_ULIMIT + +# Decoding a small target with the -max_target_file_size option should succeed. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -max_target_file_size=65536 \ +|| { echo "vcdiff test with -max_target_file_size failed"; \ + exit 1; } +echo "Test 36 ok"; + +# Decoding a small target with -max_target_window_size option should succeed. +$VCDIFF $VCD_OPTIONS \ + test -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -max_target_window_size=65536 \ +|| { echo "vcdiff test with -max_target_window_size failed"; \ + exit 1; } +echo "Test 37 ok"; + +rm $DELTA_FILE + +# Test using -allow_vcd_target=false +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -allow_vcd_target=false \ +|| { echo "Encode with -allow_vcd_target=false failed"; \ + exit 1; } +$VCDIFF $VCD_OPTIONS \ + decode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE \ + -allow_vcd_target=false \ +|| { echo "Decode with -allow_vcd_target=false failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 38 ok"; + +rm $DELTA_FILE +rm $OUTPUT_TARGET_FILE + +# Test using -allow_vcd_target=true +$VCDIFF $VCD_OPTIONS \ + encode -dictionary $DICTIONARY_FILE \ + -target $TARGET_FILE \ + -delta $DELTA_FILE \ + -allow_vcd_target=true \ +|| { echo "Encode with -allow_vcd_target=true failed"; \ + exit 1; } +$VCDIFF $VCD_OPTIONS \ + decode -dictionary $DICTIONARY_FILE \ + -delta $DELTA_FILE \ + -target $OUTPUT_TARGET_FILE \ + -allow_vcd_target=true \ +|| { echo "Decode with -allow_vcd_target=true failed"; \ + exit 1; } +cmp $TARGET_FILE $OUTPUT_TARGET_FILE \ +|| { echo "Decoded target does not match original"; \ + exit 1; } +echo "Test 39 ok"; + +echo "PASS" |