Repo created

libs/search/search_tests/algos_tests.cpp

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+#include "testing/testing.hpp"
+
+#include "search/algos.hpp"
+
+#include <algorithm>
+#include <iterator>
+#include <vector>
+
+using namespace std;
+
+namespace
+{
+struct CompWithEqual
+{
+  bool Less(int i1, int i2) const { return i1 <= i2; }
+  bool Greater(int i1, int i2) const { return i1 >= i2; }
+};
+
+void TestLongestSequence(int in[], size_t inSz, int eta[])
+{
+  vector<int> res;
+  search::LongestSubsequence(vector<int>(in, in + inSz), back_inserter(res), CompWithEqual());
+  reverse(res.begin(), res.end());
+  TEST(equal(res.begin(), res.end(), eta), (res));
+}
+}  // namespace
+
+UNIT_TEST(LS_Smoke)
+{
+  {
+    int arr[] = {1};
+    TestLongestSequence(arr, ARRAY_SIZE(arr), arr);
+  }
+
+  {
+    int arr[] = {1, 2};
+    TestLongestSequence(arr, ARRAY_SIZE(arr), arr);
+  }
+
+  {
+    int arr[] = {2, 1};
+    TestLongestSequence(arr, ARRAY_SIZE(arr), arr);
+  }
+
+  {
+    int arr[] = {1, 9, 2, 3, 8, 0, 7, -1, 7, -2, 7};
+    int res[] = {1, 2, 3, 7, 7, 7};
+    TestLongestSequence(arr, ARRAY_SIZE(arr), res);
+  }
+}