assimp/test/unit/utIOStreamBuffer.cpp

/*
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Open Asset Import Library (assimp)
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Copyright (c) 2006-2017, assimp team


All rights reserved.

Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the following
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* Redistributions of source code must retain the above
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following disclaimer.

* Redistributions in binary form must reproduce the above
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* Neither the name of the assimp team, nor the names of its
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derived from this software without specific prior
written permission of the assimp team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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*/

#include "UnitTestPCH.h"
#include "IOStreamBuffer.h"
#include "TestIOStream.h"
#include "UnitTestFileGenerator.h"

class IOStreamBufferTest : public ::testing::Test {
    // empty
};

using namespace Assimp;

TEST_F( IOStreamBufferTest, creationTest ) {
    bool ok( true );
    try {
        IOStreamBuffer<char> myBuffer;
    } catch ( ... ) {
        ok = false;
    }
    EXPECT_TRUE( ok );
}

TEST_F( IOStreamBufferTest, accessCacheSizeTest ) {
    IOStreamBuffer<char> myBuffer1;
    EXPECT_NE( 0U, myBuffer1.cacheSize() );

    IOStreamBuffer<char> myBuffer2( 100 );
    EXPECT_EQ( 100U, myBuffer2.cacheSize() );
}

const char data[]{"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Qui\
sque luctus sem diam, ut eleifend arcu auctor eu. Vestibulum id est vel nulla l\
obortis malesuada ut sed turpis. Nulla a volutpat tortor. Nunc vestibulum portt\
itor sapien ornare sagittis volutpat."};


TEST_F( IOStreamBufferTest, open_close_Test ) {
    IOStreamBuffer<char> myBuffer;

    EXPECT_FALSE( myBuffer.open( nullptr ) );
    EXPECT_FALSE( myBuffer.close() );
    
    const auto dataSize = sizeof(data);
    const auto dataCount = dataSize / sizeof(*data);

    char fname[]={ "octest.XXXXXX" };
    auto* fs = MakeTmpFile(fname);
    ASSERT_NE(nullptr, fs);
    
    auto written = std::fwrite( data, sizeof(*data), dataCount, fs );
    EXPECT_NE( 0U, written );
    auto flushResult = std::fflush( fs );
	ASSERT_EQ(0, flushResult);
	std::fclose( fs );
	fs = std::fopen(fname, "r");
	ASSERT_NE(nullptr, fs);
    {
        TestDefaultIOStream myStream( fs, fname );

        EXPECT_TRUE( myBuffer.open( &myStream ) );
        EXPECT_FALSE( myBuffer.open( &myStream ) );
        EXPECT_TRUE( myBuffer.close() );
    }
    remove(fname);
}

TEST_F( IOStreamBufferTest, readlineTest ) {
    
    const auto dataSize = sizeof(data);
    const auto dataCount = dataSize / sizeof(*data);

    char fname[]={ "readlinetest.XXXXXX" };
    auto* fs = MakeTmpFile(fname);
    ASSERT_NE(nullptr, fs);

    auto written = std::fwrite( data, sizeof(*data), dataCount, fs );
    EXPECT_NE( 0U, written );

	auto flushResult = std::fflush(fs);
	ASSERT_EQ(0, flushResult);
	std::fclose(fs);
	fs = std::fopen(fname, "r");
	ASSERT_NE(nullptr, fs);

    const auto tCacheSize = 26u;

    IOStreamBuffer<char> myBuffer( tCacheSize );
    EXPECT_EQ(tCacheSize, myBuffer.cacheSize() );

    TestDefaultIOStream myStream( fs, fname );
    auto size = myStream.FileSize();
    auto numBlocks = size / myBuffer.cacheSize();
    if ( size % myBuffer.cacheSize() > 0 ) {
        numBlocks++;
    }
    EXPECT_TRUE( myBuffer.open( &myStream ) );
    EXPECT_EQ( numBlocks, myBuffer.getNumBlocks() );
    EXPECT_TRUE( myBuffer.close() );
}

TEST_F( IOStreamBufferTest, accessBlockIndexTest ) {

}