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ninarow_pattern_ut.cpp
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#include <gtest/gtest.h>
#include "ninarow_pattern.h"
using namespace NInARow;
/**
* Tests Pattern from/to string implementation.
*/
TEST(NInARowPatternTest, TestFromString) {
{
const std::string board =
"100111111"
"011010000"
"011010000"
"100110000";
{
Pattern<4, 9, 4> pattern(board);
EXPECT_EQ(board, pattern.to_string());
}
{
// Wrong length.
EXPECT_THROW((Pattern<3, 3, 3>(board)), std::invalid_argument);
}
}
{
const std::string board =
"100"
"010"
"001";
{
Pattern<3, 3, 3> pattern(board);
EXPECT_EQ(board, pattern.to_string());
}
{
// Wrong length.
EXPECT_THROW((Pattern<4, 9, 4>(board)), std::invalid_argument);
}
}
}
/**
* Tests Pattern shift logic.
*/
TEST(NInARowPatternTest, TestShift) {
using Pattern = Pattern<3, 3, 3>;
const std::string board =
"101"
"010"
"101";
Pattern pattern(board);
// Horizontal shifts.
{
Pattern temp(pattern);
temp.shift(0, 1);
EXPECT_EQ(
"010"
"100"
"010",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(0, 2);
EXPECT_EQ(
"100"
"000"
"100",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(0, 3);
EXPECT_EQ(
"000"
"000"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(0, -1);
EXPECT_EQ(
"010"
"001"
"010",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(0, -2);
EXPECT_EQ(
"001"
"000"
"001",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(0, -3);
EXPECT_EQ(
"000"
"000"
"000",
temp.to_string());
}
// Vertical shifts.
{
Pattern temp(pattern);
temp.shift(1, 0);
EXPECT_EQ(
"010"
"101"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(2, 0);
EXPECT_EQ(
"101"
"000"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(3, 0);
EXPECT_EQ(
"000"
"000"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(-1, 0);
EXPECT_EQ(
"000"
"101"
"010",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(-2, 0);
EXPECT_EQ(
"000"
"000"
"101",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(-3, 0);
EXPECT_EQ(
"000"
"000"
"000",
temp.to_string());
}
// Diagonal shifts.
{
Pattern temp(pattern);
temp.shift(1, 1);
EXPECT_EQ(
"100"
"010"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(2, 2);
EXPECT_EQ(
"100"
"000"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(3, 3);
EXPECT_EQ(
"000"
"000"
"000",
temp.to_string());
}
{
Pattern temp(pattern);
temp.shift(-1, -2);
EXPECT_EQ(
"000"
"001"
"000",
temp.to_string());
}
}
/**
* Tests Pattern min/max row/col logic.
*/
TEST(NInARowPatternTest, TestRowCol) {
{
const std::string board =
"000"
"010"
"000";
Pattern<3, 3, 3> pattern(board);
EXPECT_EQ(pattern.max_row(), 1);
EXPECT_EQ(pattern.min_row(), 1);
EXPECT_EQ(pattern.max_col(), 1);
EXPECT_EQ(pattern.min_col(), 1);
}
{
const std::string board =
"000"
"000"
"000";
Pattern<3, 3, 3> pattern(board);
EXPECT_EQ(pattern.max_row(), 3);
EXPECT_EQ(pattern.min_row(), 0);
EXPECT_EQ(pattern.max_col(), 3);
EXPECT_EQ(pattern.min_col(), 0);
}
{
const std::string board =
"00001"
"00000"
"00000"
"01000"
"00000";
Pattern<5, 5, 3> pattern(board);
// Keep in mind, these strings are read in LSB to MSB,
// so they are functionally mirrored diagonally.
EXPECT_EQ(pattern.max_row(), 4);
EXPECT_EQ(pattern.min_row(), 1);
EXPECT_EQ(pattern.max_col(), 3);
EXPECT_EQ(pattern.min_col(), 0);
}
}
/**
* Tests Pattern win detection logic.
*/
TEST(NInARowPatternTest, TestContainsWin) {
{
std::vector<std::pair<std::string, bool>> testcases = {{"000"
"000"
"000",
false},
{"110"
"110"
"000",
false},
{"000"
"011"
"011",
false},
{"010"
"101"
"010",
false},
{"101"
"101"
"010",
false},
{"010"
"101"
"101",
false},
{"111"
"111"
"111",
true},
{"111"
"000"
"000",
true},
{"100"
"100"
"100",
true},
{"100"
"010"
"001",
true},
{"001"
"010"
"100",
true},
{"111"
"101"
"111",
true},
{"110"
"011"
"011",
true}};
for (auto &pair : testcases) {
Pattern<3, 3, 3> pattern(pair.first);
EXPECT_EQ(pattern.contains_win(), pair.second);
}
}
{
std::vector<std::pair<std::string, bool>> testcases = {{"100111101"
"011010000"
"011010000"
"100110000",
true},
{"000000000"
"001111000"
"000000000"
"000000000",
true},
{"001000000"
"001000000"
"001000000"
"001000000",
true},
{"010000000"
"001000000"
"000100000"
"000010000",
true},
{"000000001"
"000000010"
"000000100"
"000001000",
true},
{"101110000"
"010010001"
"001010010"
"000000100",
false}
};
for (auto &pair : testcases) {
Pattern<4, 9, 4> pattern(pair.first);
EXPECT_EQ(pattern.contains_win(), pair.second);
}
// All of the above patterns have a 3-win.
for (auto &pair : testcases) {
Pattern<4, 9, 3> pattern(pair.first);
EXPECT_EQ(pattern.contains_win(), true);
}
// None have a 5-win.
for (auto &pair : testcases) {
Pattern<4, 9, 5> pattern(pair.first);
EXPECT_EQ(pattern.contains_win(), false);
}
}
{
std::vector<std::pair<std::string, bool>> testcases = {{"000000"
"000000"
"001000"
"000100"
"000010"
"000001",
true},
{"000000"
"000000"
"000001"
"000010"
"000100"
"001000",
true},
{"000000"
"000100"
"001000"
"010000"
"100000"
"000000",
true},
{"001000"
"000100"
"000010"
"000001"
"000000"
"000000",
true},
{"100000"
"010000"
"001000"
"000000"
"000010"
"000001",
false},
{"000001"
"000010"
"000100"
"000000"
"010000"
"100000",
false}
};
for (auto &pair : testcases) {
Pattern<6, 6, 4> pattern(pair.first);
EXPECT_EQ(pattern.contains_win(), pair.second);
}
}
}
/**
* Tests Pattern comparison logic.
*/
TEST(NInARowPatternTest, TestComparison) {
using Pattern = Pattern<3, 3, 3>;
Pattern test_pattern(
"101"
"010"
"101");
EXPECT_EQ(test_pattern.count_overlap(test_pattern),
test_pattern.positions.count());
EXPECT_EQ(test_pattern.count_spaces(test_pattern), 0U);
EXPECT_TRUE(test_pattern.contains(test_pattern));
Pattern all("111111111");
EXPECT_EQ(test_pattern.count_overlap(all), test_pattern.positions.count());
EXPECT_EQ(all.count_overlap(test_pattern), test_pattern.positions.count());
EXPECT_EQ(test_pattern.count_spaces(all), 4U);
EXPECT_EQ(all.count_spaces(test_pattern), 0U);
EXPECT_FALSE(test_pattern.contains(all));
EXPECT_TRUE(all.contains(test_pattern));
Pattern none;
EXPECT_EQ(test_pattern.count_overlap(none), 0U);
EXPECT_EQ(none.count_overlap(test_pattern), 0U);
EXPECT_EQ(test_pattern.count_spaces(none), 0U);
EXPECT_EQ(none.count_spaces(test_pattern), test_pattern.positions.count());
EXPECT_TRUE(test_pattern.contains(none));
EXPECT_FALSE(none.contains(test_pattern));
Pattern anti_test_pattern(~test_pattern.positions);
EXPECT_EQ(test_pattern.count_overlap(anti_test_pattern), 0U);
EXPECT_EQ(anti_test_pattern.count_overlap(test_pattern), 0U);
EXPECT_EQ(test_pattern.count_spaces(anti_test_pattern),
anti_test_pattern.positions.count());
EXPECT_EQ(anti_test_pattern.count_spaces(test_pattern),
test_pattern.positions.count());
EXPECT_FALSE(test_pattern.contains(anti_test_pattern));
EXPECT_FALSE(anti_test_pattern.contains(test_pattern));
Pattern sub_pattern(
"100"
"010"
"001");
EXPECT_EQ(test_pattern.count_overlap(sub_pattern), 3U);
EXPECT_EQ(sub_pattern.count_overlap(test_pattern), 3U);
EXPECT_EQ(test_pattern.count_spaces(sub_pattern), 0U);
EXPECT_EQ(sub_pattern.count_spaces(test_pattern), 2U);
EXPECT_TRUE(test_pattern.contains(sub_pattern));
EXPECT_FALSE(sub_pattern.contains(test_pattern));
}