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#include "tensorflow/core/public/env.h"
#include "tensorflow/core/lib/io/path.h"
#include "tensorflow/core/lib/strings/strcat.h"
#include "tensorflow/core/platform/test.h"
#include <gtest/gtest.h>
namespace tensorflow {
struct EnvTest {};
TEST(EnvTest, ReadFileToString) {
Env* env = Env::Default();
const string dir = testing::TmpDir();
for (const int length : {0, 1, 1212, 2553, 4928, 8196, 9000}) {
const string filename = io::JoinPath(dir, strings::StrCat("file", length));
// Write a file with the given length
string input(length, 0);
for (int i = 0; i < length; i++) input[i] = i;
WriteStringToFile(env, filename, input);
// Read the file back and check equality
string output;
TF_CHECK_OK(ReadFileToString(env, filename, &output));
CHECK_EQ(length, output.size());
CHECK_EQ(input, output);
}
}
} // namespace tensorflow
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