// (C) Copyright 2017, Google Inc. // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "tesseract/genericvector.h" #include "kdpair.h" #include "statistc.h" #include "include_gunit.h" namespace { const int kTestData[] = {2, 0, 12, 1, 1, 2, 10, 1, 0, 0, 0, 2, 0, 4, 1, 1}; class STATSTest : public testing::Test { public: void SetUp() { std::locale::global(std::locale("")); stats_.set_range(0, 16); for (size_t i = 0; i < ARRAYSIZE(kTestData); ++i) stats_.add(i, kTestData[i]); } void TearDown() {} STATS stats_; }; // Tests some basic numbers from the stats_. TEST_F(STATSTest, BasicStats) { EXPECT_EQ(37, stats_.get_total()); EXPECT_EQ(2, stats_.mode()); EXPECT_EQ(12, stats_.pile_count(2)); } // Tests the top_n_modes function. TEST_F(STATSTest, TopNModes) { GenericVector > modes; int num_modes = stats_.top_n_modes(3, &modes); EXPECT_EQ(3, num_modes); // Mode0 is 12 1 1 = 14 total count with a mean of 2 3/14. EXPECT_FLOAT_EQ(2.0f + 3.0f / 14, modes[0].key); EXPECT_EQ(14, modes[0].data); // Mode 1 is 2 10 1 = 13 total count with a mean of 5 12/13. EXPECT_FLOAT_EQ(5.0f + 12.0f / 13, modes[1].key); EXPECT_EQ(13, modes[1].data); // Mode 2 is 4 1 1 = 6 total count with a mean of 13.5. EXPECT_FLOAT_EQ(13.5f, modes[2].key); EXPECT_EQ(6, modes[2].data); } } // namespace.