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https://github.com/tesseract-ocr/tesseract.git
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60 lines
1.8 KiB
C++
60 lines
1.8 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 "genericvector.h"
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#include "kdpair.h"
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#include "statistc.h"
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#include "include_gunit.h"
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namespace {
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const int kTestData[] = {2, 0, 12, 1, 1, 2, 10, 1, 0, 0, 0, 2, 0, 4, 1, 1};
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class STATSTest : public testing::Test {
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public:
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void SetUp() {
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std::locale::global(std::locale(""));
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stats_.set_range(0, 16);
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for (size_t i = 0; i < ARRAYSIZE(kTestData); ++i)
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stats_.add(i, kTestData[i]);
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}
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void TearDown() {}
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STATS stats_;
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};
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// Tests some basic numbers from the stats_.
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TEST_F(STATSTest, BasicStats) {
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EXPECT_EQ(37, stats_.get_total());
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EXPECT_EQ(2, stats_.mode());
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EXPECT_EQ(12, stats_.pile_count(2));
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}
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// Tests the top_n_modes function.
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TEST_F(STATSTest, TopNModes) {
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GenericVector<tesseract::KDPairInc<float, int> > modes;
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int num_modes = stats_.top_n_modes(3, &modes);
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EXPECT_EQ(3, num_modes);
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// Mode0 is 12 1 1 = 14 total count with a mean of 2 3/14.
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EXPECT_FLOAT_EQ(2.0f + 3.0f / 14, modes[0].key);
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EXPECT_EQ(14, modes[0].data);
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// Mode 1 is 2 10 1 = 13 total count with a mean of 5 12/13.
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EXPECT_FLOAT_EQ(5.0f + 12.0f / 13, modes[1].key);
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EXPECT_EQ(13, modes[1].data);
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// Mode 2 is 4 1 1 = 6 total count with a mean of 13.5.
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EXPECT_FLOAT_EQ(13.5f, modes[2].key);
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EXPECT_EQ(6, modes[2].data);
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}
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} // namespace.
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