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package com.seaofnodes.simple;
import com.seaofnodes.simple.util.Ary;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.concurrent.TimeUnit;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class TicTacToeTest {
private static String exe;
@BeforeClass public static void compileGame() throws Exception {
exe=TestC.compile(Files.readString(Path.of("docs/examples/TicTacToe.smp")),
"ticTacToeGames",new Ary<>(new String[]{TestC.RELEASE_SYS_DIR}),
TestC.CALL_CONVENTION,null,null,-1);
}
private static String play(String keys) throws Exception {
Process child=new ProcessBuilder(exe).redirectErrorStream(true).start();
try {
child.getOutputStream().write(keys.getBytes(StandardCharsets.US_ASCII));
child.getOutputStream().close();
assertTrue("Game did not finish",child.waitFor(10,TimeUnit.SECONDS));
String text=new String(child.getInputStream().readAllBytes(),StandardCharsets.UTF_8);
assertEquals(text,0,child.exitValue());
return text;
} finally {
child.destroyForcibly();
}
}
private static String board(String squares) {
StringBuilder out=new StringBuilder();
for(int row=0;row<3;row++) {
if(row>0) out.append("---+---+---\n");
for(int col=0;col<3;col++) {
if(col>0) out.append('|');
out.append(' ').append(squares.charAt(row*3+col)).append(' ');
}
out.append('\n');
}
return out.toString();
}
@Test public void testPlayerWin() throws Exception {
String text=play("1879");
assertTrue(text,text.endsWith(board("X OOO XXX")+"You win!\n"));
assertEquals(3,text.split("CPU plays ",-1).length-1);
}
@Test public void testCPUWinsEveryLine() throws Exception {
// Three rows, three columns, and both diagonals in complete games.
String[][] games={
{"4697","OOOXOXX X"}, {"1278","XXOOOOXX "}, {"5234","OXXXX OOO"},
{"2893","OXXOO OXX"}, {"134","XOXXO O "}, {"5472","OXOXXOX O"},
{"234","OXXXO O"}, {"124","XXOXO O "}
};
for(String[] game:games) {
String text=play(game[0]);
assertTrue(game[0]+"\n"+text,text.endsWith(board(game[1])+"CPU wins!\n"));
}
}
@Test public void testDraw() throws Exception {
String text=play("12768");
assertTrue(text,text.endsWith(board("XXOOOXXXO")+"It's a draw!\n"));
assertEquals(4,text.split("CPU plays ",-1).length-1);
}
@Test public void testBusySquaresAndInvalidInputDoNotTakeATurn() throws Exception {
// X takes 5 and O takes 1; neither occupied square can be overwritten.
String text=play("x\r\n551q");
assertEquals(text,1,text.split("Choose a square",-1).length-1);
assertEquals(text,2,text.split("That square is occupied",-1).length-1);
assertEquals(text,1,text.split("CPU plays ",-1).length-1);
assertTrue(text,text.contains("Your move (1-9): \nChoose a square from 1 to 9: 5\n"
+board(" X ")));
assertTrue(text,text.contains(board("O X ")));
assertTrue(text,text.endsWith("Your move (1-9): "
+"\nThat square is occupied. Your move (1-9): "
+"\nThat square is occupied. Your move (1-9): \nGoodbye!\n"));
}
@Test public void testCPUBlocksAndEOFQuits() throws Exception {
String text=play("12");
assertTrue(text,text.contains("CPU plays 3.\n"+board("XXO O ")));
assertTrue(text,text.endsWith("Goodbye!\n"));
}
}
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