yakovsh commented on code in PR #435:
URL: https://github.com/apache/commons-compress/pull/435#discussion_r1389858759
##########
src/test/java/org/apache/commons/compress/compressors/z/ZCompressorInputStreamTest.java:
##########
@@ -68,4 +73,32 @@ public void
testSingleByteReadConsistentlyReturnsMinusOneAtEof() throws IOExcept
}
}
+ @Test
+ public void testInvalidMaxCodeSize() throws IOException {
+ Set<Integer> invalidValues = new TreeSet<>();
+ invalidValues.addAll(IntStream.range(Byte.MIN_VALUE,
-120).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(-97,
-88).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(-65,
-56).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(-33,
-24).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(-1,
8).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(31,
40).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(63,
72).boxed().collect(Collectors.toSet()));
+ invalidValues.addAll(IntStream.range(95,
104).boxed().collect(Collectors.toSet()));
+ invalidValues.add(127);
+
+ final File input = getFile("bla.tar.Z");
+ try (final InputStream contentStream =
Files.newInputStream(input.toPath())) {
+ final byte[] content = IOUtils.toByteArray(contentStream);
+
+ for (int value : invalidValues) {
+ content[2] = (byte) value;
+
+ // Test that invalid values always throw an IOException
+ assertThrows(IOException.class, () ->
+ new ZCompressorInputStream(new
ByteArrayInputStream(content), 1024 * 1024)
+ );
+ }
+ }
Review Comment:
Thank you!
A follow-up question: the exception thrown in initializeTables is an
IllegalArgumentException. Should that be an IOException instead? Users invoking
the ZInputStream in a try/catch might only be catching IOException since that
is what is being declared in the constructor.
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