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authorLasse Collin <lasse.collin@tukaani.org>2008-01-25 23:50:35 +0200
committerLasse Collin <lasse.collin@tukaani.org>2008-01-25 23:50:35 +0200
commite988ea1d1a286dd0f27af0657f9665d5cd8573aa (patch)
treec4fe901fd1cb529d08c8e857c462814f87289e81 /tests
parentCombine lzma_options_block validation needed by both Block (diff)
downloadxz-e988ea1d1a286dd0f27af0657f9665d5cd8573aa.tar.xz
Added more Multi-Block test files. Improved some
descriptions in the test files' README.
Diffstat (limited to 'tests')
-rw-r--r--tests/files/README34
-rw-r--r--tests/files/bad-multi-none-block_1.lzmabin0 -> 66 bytes
-rw-r--r--tests/files/bad-multi-none-block_2.lzmabin0 -> 66 bytes
-rw-r--r--tests/files/good-multi-none-block_1.lzmabin0 -> 66 bytes
4 files changed, 28 insertions, 6 deletions
diff --git a/tests/files/README b/tests/files/README
index ebf8d863..b1d0b686 100644
--- a/tests/files/README
+++ b/tests/files/README
@@ -101,6 +101,10 @@
Block. Footer Metadata Block contains only Size of Header Metadata
Block and Total Size.
+ good-multi-none-block_1.lzma has Index in Header Metadata Block. The
+ Compressed Size and Uncompressed Size fields are present in the Data
+ Blocks. There is some Footer Padding between the Blocks.
+
2.2. Bad Files
@@ -191,12 +195,15 @@
bad-multi-none-header_2.lzma has Index in the Header Metadata Block,
which describes only one Data Block, while the Stream actually has
- two Data Blocks. A decoder should give an error when it detects the
- second Data Block.
+ two Data Blocks. A sophisticated decoder should give an error when
+ it detects the second Data Block; all Multi-Block decoders must
+ detect the file as corrupt at some point.
bad-multi-none-header_3.lzma contains too small Total Size in Header
- Metadata Block. A decoder should abort decoding before the second
- Data Block, preferably before the first Data Block has been finished.
+ Metadata Block. A sophisticated decoder should abort decoding before
+ the second Data Block, preferably before the first Data Block has
+ been finished; all Multi-Block decoders must detect the file as
+ corrupt at some point.
bad-multi-none-header_4.lzma is like bad-multi-none-header_3.lzma but
with too small Uncompressed Size.
@@ -205,8 +212,23 @@
but the Total Size field is missing from the Footer Metadata Block.
bad-multi-none-header_6.lzma has both Index and Total Size in Header
- Metadata Block, but Total Size doesn't match the Index. A decoder
- should abort before decoding any Data Blocks.
+ Metadata Block, but Total Size doesn't match the Index. A sophisticated
+ decoder should abort before decoding any Data Blocks; all Multi-Block
+ decoders must detect the file as corrupt at some point.
+
+ bad-multi-none-block_1.lzma has wrong Uncompressed Size in the first
+ Data Block. A sophisticated decoder should detect this error before
+ producing any output, because it can see that the Uncompressed Size
+ doesn't match with the Index in Header Metadata Block; all Multi-Block
+ decoders must detect the file as corrupt at some point.
+
+ bad-multi-none-block_2.lzma has too big Compressed Size in the first
+ Data Block. A sophisticated decoder may be able to detect the file as
+ corrupt before producing any output, because Comrpessed Size + size
+ of Block Header exceed the Total Size stored in Index in Header
+ Metadata Block. A sophisticated decoder should be able to detect the
+ error before the end of the first Data Block; all Multi-Block decoders
+ must detect the file as corrupt at some point.
2.3. Malicious Files
diff --git a/tests/files/bad-multi-none-block_1.lzma b/tests/files/bad-multi-none-block_1.lzma
new file mode 100644
index 00000000..17385aec
--- /dev/null
+++ b/tests/files/bad-multi-none-block_1.lzma
Binary files differ
diff --git a/tests/files/bad-multi-none-block_2.lzma b/tests/files/bad-multi-none-block_2.lzma
new file mode 100644
index 00000000..b88836a5
--- /dev/null
+++ b/tests/files/bad-multi-none-block_2.lzma
Binary files differ
diff --git a/tests/files/good-multi-none-block_1.lzma b/tests/files/good-multi-none-block_1.lzma
new file mode 100644
index 00000000..b573e36a
--- /dev/null
+++ b/tests/files/good-multi-none-block_1.lzma
Binary files differ