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https://issues.apache.org/jira/browse/HADOOP-19400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17924987#comment-17924987
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ASF GitHub Bot commented on HADOOP-19400:
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cnauroth commented on PR #7367:
URL: https://github.com/apache/hadoop/pull/7367#issuecomment-2643686251
Hi @steveloughran ! This is the follow-up you requested for more
specification/test coverage of input stream reads. I've confirmed this is
passing on local, HDFS and S3A (GCS as the back-end). I can't easily check the
others unfortunately.
> Expand specification and contract test coverage for InputStream reads.
> ----------------------------------------------------------------------
>
> Key: HADOOP-19400
> URL: https://issues.apache.org/jira/browse/HADOOP-19400
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation, fs, test
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Priority: Major
> Labels: pull-request-available
>
> This issue is a spin-off from HADOOP-19389, specifically [this code review
> discussion|https://github.com/apache/hadoop/pull/7291#discussion_r1920495312].
> We can enhance the FS specification and contract tests to cover expected
> semantics of the {{InputStream}} single-byte and multi-byte read methods:
> * Multi-byte read should validate the arguments passed to it, according to
> the pattern established in the JDK base {{InputStream}} class.
> * You should get the same bytes whether going through single-byte or
> multi-byte read.
> * It is legal to mix calls to single-byte and multi-byte read, and this
> should also yield the same bytes.
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