assimp/test/unit/utIOStreamBuffer.cpp

/*
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Open Asset Import Library (assimp)
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Copyright (c) 2006-2022, assimp team



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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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#include "UnitTestPCH.h"
#include <assimp/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 ) {

}