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#include <gtest/gtest.h>
#include <memory>
#include "mocks/mock_suffix_array.h"
#include "phrase_location.h"
#include "sampler.h"
using namespace std;
using namespace ::testing;
namespace {
class SamplerTest : public Test {
protected:
virtual void SetUp() {
suffix_array = make_shared<MockSuffixArray>();
for (int i = 0; i < 10; ++i) {
EXPECT_CALL(*suffix_array, GetSuffix(i)).WillRepeatedly(Return(i));
}
}
shared_ptr<MockSuffixArray> suffix_array;
shared_ptr<Sampler> sampler;
};
TEST_F(SamplerTest, TestSuffixArrayRange) {
PhraseLocation location(0, 10);
sampler = make_shared<Sampler>(suffix_array, 1);
vector<int> expected_locations = {0};
EXPECT_EQ(PhraseLocation(expected_locations, 1), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 2);
expected_locations = {0, 5};
EXPECT_EQ(PhraseLocation(expected_locations, 1), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 3);
expected_locations = {0, 3, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 1), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 4);
expected_locations = {0, 3, 5, 8};
EXPECT_EQ(PhraseLocation(expected_locations, 1), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 100);
expected_locations = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 1), sampler->Sample(location));
}
TEST_F(SamplerTest, TestSubstringsSample) {
vector<int> locations = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
PhraseLocation location(locations, 2);
sampler = make_shared<Sampler>(suffix_array, 1);
vector<int> expected_locations = {0, 1};
EXPECT_EQ(PhraseLocation(expected_locations, 2), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 2);
expected_locations = {0, 1, 6, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 2), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 3);
expected_locations = {0, 1, 4, 5, 6, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 2), sampler->Sample(location));
sampler = make_shared<Sampler>(suffix_array, 7);
expected_locations = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2), sampler->Sample(location));
}
} // namespace
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