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https://github.com/tesseract-ocr/tesseract.git
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75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
// (C) Copyright 2017, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <string> // std::string
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#include <vector>
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#include "include_gunit.h"
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#include "params_model.h"
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#include <tesseract/serialis.h> // TFile
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#include "tprintf.h" // tprintf
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namespace tesseract {
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// Test some basic I/O of params model files (automated learning of language
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// model weights).
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#ifndef DISABLED_LEGACY_ENGINE
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static bool LoadFromFile(tesseract::ParamsModel& model, const char* lang, const char* full_path) {
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tesseract::TFile fp;
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if (!fp.Open(full_path, nullptr)) {
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tprintf("Error opening file %s\n", full_path);
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return false;
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}
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return model.LoadFromFp(lang, &fp);
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}
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#endif
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class ParamsModelTest : public testing::Test {
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#ifndef DISABLED_LEGACY_ENGINE
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protected:
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void SetUp() override {
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std::locale::global(std::locale(""));
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}
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std::string TestDataNameToPath(const std::string& name) const {
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return file::JoinPath(TESTDATA_DIR, name);
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}
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std::string OutputNameToPath(const std::string& name) const {
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return file::JoinPath(FLAGS_test_tmpdir, name);
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}
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// Test that we are able to load a params model, save it, reload it,
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// and verify that the re-serialized version is the same as the original.
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void TestParamsModelRoundTrip(const std::string& params_model_filename) const {
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tesseract::ParamsModel orig_model;
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tesseract::ParamsModel duplicate_model;
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std::string orig_file = TestDataNameToPath(params_model_filename);
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std::string out_file = OutputNameToPath(params_model_filename);
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EXPECT_TRUE(LoadFromFile(orig_model, "eng", orig_file.c_str()));
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EXPECT_TRUE(orig_model.SaveToFile(out_file.c_str()));
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EXPECT_TRUE(LoadFromFile(duplicate_model, "eng", out_file.c_str()));
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EXPECT_TRUE(orig_model.Equivalent(duplicate_model));
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}
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#endif
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};
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TEST_F(ParamsModelTest, TestEngParamsModelIO) {
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#ifdef DISABLED_LEGACY_ENGINE
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// Skip test because ParamsModel::LoadFromFp is missing.
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GTEST_SKIP();
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#else
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TestParamsModelRoundTrip("eng.params_model");
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#endif
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}
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} // namespace
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