Add unit test for wxLZMA{Input,Output}Stream classes

Create another generic stream test using BaseStreamTestCase framework.

tests/streams/lzmastream.cpp

@@ -0,0 +1,90 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/streams/lzmastream.cpp
+// Purpose:     Unit tests for LZMA stream classes
+// Author:      Vadim Zeitlin
+// Created:     2018-03-30
+// Copyright:   (c) 2018 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#if wxUSE_LIBLZMA && wxUSE_STREAMS
+
+#include "wx/mstream.h"
+#include "wx/lzmastream.h"
+
+#include "bstream.h"
+
+class LZMAStream : public BaseStreamTestCase<wxLZMAInputStream, wxLZMAOutputStream>
+{
+public:
+    LZMAStream();
+
+    CPPUNIT_TEST_SUITE(zlibStream);
+        // Base class stream tests.
+        CPPUNIT_TEST(Input_GetSizeFail);
+        CPPUNIT_TEST(Input_GetC);
+        CPPUNIT_TEST(Input_Read);
+        CPPUNIT_TEST(Input_Eof);
+        CPPUNIT_TEST(Input_LastRead);
+        CPPUNIT_TEST(Input_CanRead);
+        CPPUNIT_TEST(Input_SeekIFail);
+        CPPUNIT_TEST(Input_TellI);
+        CPPUNIT_TEST(Input_Peek);
+        CPPUNIT_TEST(Input_Ungetch);
+
+        CPPUNIT_TEST(Output_PutC);
+        CPPUNIT_TEST(Output_Write);
+        CPPUNIT_TEST(Output_LastWrite);
+        CPPUNIT_TEST(Output_SeekOFail);
+        CPPUNIT_TEST(Output_TellO);
+    CPPUNIT_TEST_SUITE_END();
+
+protected:
+    wxLZMAInputStream *DoCreateInStream() wxOVERRIDE;
+    wxLZMAOutputStream *DoCreateOutStream() wxOVERRIDE;
+
+private:
+    wxDECLARE_NO_COPY_CLASS(LZMAStream);
+};
+
+STREAM_TEST_SUBSUITE_NAMED_REGISTRATION(LZMAStream)
+
+LZMAStream::LZMAStream()
+{
+    // Disable TellI() and TellO() tests in the base class which don't work
+    // with the compressed streams.
+    m_bSimpleTellITest =
+    m_bSimpleTellOTest = true;
+}
+
+wxLZMAInputStream *LZMAStream::DoCreateInStream()
+{
+    // Compress some data.
+    const char data[] = "This is just some test data for LZMA streams unit test";
+    const size_t len = sizeof(data);
+
+    wxMemoryOutputStream outmem;
+    wxLZMAOutputStream outz(outmem);
+    outz.Write(data, len);
+    REQUIRE( outz.LastWrite() == len );
+    REQUIRE( outz.Close() );
+
+    wxMemoryInputStream* const inmem = new wxMemoryInputStream(outmem);
+    REQUIRE( inmem->IsOk() );
+
+    // Give ownership of the memory input stream to the LZMA stream.
+    return new wxLZMAInputStream(inmem);
+}
+
+wxLZMAOutputStream *LZMAStream::DoCreateOutStream()
+{
+    return new wxLZMAOutputStream(new wxMemoryOutputStream());
+}
+
+#endif // wxUSE_LIBLZMA && wxUSE_STREAMS