[#BloombergLP-bslx-TestInStream-2constructor-04]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslx.adoc[bslx]::xref:BloombergLP/bslx/TestInStream.adoc[TestInStream]::TestInStream
:relfileprefix: ../../../
:mrdocs:

Create a test input stream containing the specified initial `numBytes` from the specified `buffer`. The behavior is undefined unless `0 == numBytes` if `0 == buffer`.

== Synopsis

Declared in `<bslx_testinstream.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
TestInStream(
    char const* buffer,
    std::size_t numBytes);
----


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