49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#pragma once
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#ifndef TEST_TESTUTILS_VIRTUALTESTFILE_H_
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#define TEST_TESTUTILS_VIRTUALTESTFILE_H_
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#include <cstdio>
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//TODO Rename to RandomData or something more speaking about what this class does.
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class VirtualTestFile {
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public:
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VirtualTestFile(size_t size, long long int IV = 1);
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virtual ~VirtualTestFile();
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int read(void *buf, size_t count, off_t offset);
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// Return true, iff the given data is equal to the data of the file at the given offset.
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bool fileContentEqual(const char *content, size_t count, off_t offset);
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const char *data() const;
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size_t size() const;
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protected:
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char *_fileData;
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size_t _size;
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private:
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void fillFileWithRandomData(long long int IV);
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};
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class VirtualTestFileWriteable: public VirtualTestFile {
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public:
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VirtualTestFileWriteable(size_t size, long long int IV = 1);
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virtual ~VirtualTestFileWriteable();
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void write(const void *buf, size_t count, off_t offset);
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bool sizeUnchanged();
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bool regionUnchanged(off_t offset, size_t count);
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private:
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void extendFileSizeIfNecessary(size_t size);
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void extendFileSize(size_t size);
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char *_originalFileData;
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size_t _originalSize;
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};
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#endif
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