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Jinghui Wang updated HADOOP-10843: ---------------------------------- Attachment: HADOOP-10843.3.patch > TestGridmixRecord unit tests failure on PowerPC > ----------------------------------------------- > > Key: HADOOP-10843 > URL: https://issues.apache.org/jira/browse/HADOOP-10843 > Project: Hadoop Common > Issue Type: Bug > Components: test, tools > Affects Versions: 2.2.0, 2.3.0, 2.4.0, 2.4.1 > Reporter: Jinghui Wang > Assignee: Jinghui Wang > Attachments: HADOOP-10843.1.patch, HADOOP-10843.2.patch, > HADOOP-10843.3.patch > > > In TestGridmixRecord#binSortTest, the test expects the comparison result of > WritableComparator.compareBytes, which uses UnsafeComparer, to be the integer > difference rather than the documented "@return 0 if equal, < 0 if left is > less than right, etc.". > TestGridmixRecord#binSortTest code snippet > {code} > final int chk = WritableComparator.compareBytes( > out1.getData(), 0, out1.getLength(), > out2.getData(), 0, out2.getLength()); > assertEquals(chk, x.compareTo(y)); > assertEquals(chk, cmp.compare( > out1.getData(), 0, out1.getLength(), > out2.getData(), 0, out2.getLength())); > {code} > The code snippet below shows the Unsafe comparator behavior for > non-little-endian machines. > {code} > if (!littleEndian) { > return lessThanUnsigned(lw, rw) ? -1 : 1; > } > {code} -- This message was sent by Atlassian JIRA (v6.2#6252)