TestJudgeEngine.java

import engine.CompileRunner;
import engine.TestCaseRunner;
import exception.CompilationException;
import exception.RuntimeErrorException;
import exception.TimeLimitExceededException;

import java.io.File;

/**
 * Quick smoke-test for CompileRunner + TestCaseRunner.
 *
 * Run from the OODP_Mini_Project root with:
 *   javac -cp src -d out src/engine/CompileRunner.java src/engine/TestCaseRunner.java
 *         src/exception/CompilationException.java
 *         src/exception/TimeLimitExceededException.java
 *         src/exception/RuntimeErrorException.java
 *   javac -cp src;out -d out TestJudgeEngine.java
 *   java  -cp out TestJudgeEngine
 */
public class TestJudgeEngine {

    /** A correct Java solution for "Sum of Two Numbers" embedded as a String. */
    private static final String SUM_SOLUTION =
            "import java.util.Scanner;\n" +
            "public class SumSolution {\n" +
            "    public static void main(String[] args) {\n" +
            "        Scanner sc = new Scanner(System.in);\n" +
            "        int a = sc.nextInt();\n" +
            "        int b = sc.nextInt();\n" +
            "        System.out.println(a + b);\n" +
            "    }\n" +
            "}\n";

    public static void main(String[] args) {
        System.out.println("=================================================");
        System.out.println("  AlgoJudge — CompileRunner + TestCaseRunner test");
        System.out.println("=================================================\n");

        String workDir = "tmp_test" + File.separator + "S_TEST" + File.separator;
        new File(workDir).mkdirs();

        // ── STEP 1: Compile ──────────────────────────────────────────────────
        System.out.println("[TEST] Compiling SumSolution...");
        String className = null;
        try {
            className = CompileRunner.compile(SUM_SOLUTION, "S_TEST", workDir);
            System.out.println("[TEST] Compilation OK. Class name: " + className);
        } catch (CompilationException e) {
            System.err.println("[TEST] FAILED — CompilationException:");
            System.err.println(e.getCompilerOutput());
            System.exit(1);
        }

        // ── STEP 2: Run against test cases ───────────────────────────────────
        String[][] cases = {
                {"3 5",    "8"},
                {"0 0",    "0"},
                {"-1 1",   "0"},
                {"100 200","300"}
        };

        int passed = 0;
        for (int i = 0; i < cases.length; i++) {
            String input    = cases[i][0];
            String expected = cases[i][1];
            System.out.printf("[TEST] TC%d  input='%s'  expected='%s'  ",
                    i + 1, input, expected);
            try {
                String actual = TestCaseRunner.run(className, workDir, input, 2000);
                String trimActual = actual == null ? "" : actual.trim();
                if (trimActual.equals(expected)) {
                    System.out.println("→ AC ✓");
                    passed++;
                } else {
                    System.out.println("→ WA  (got: '" + trimActual + "')");
                }
            } catch (TimeLimitExceededException e) {
                System.out.println("→ TLE  " + e.getMessage());
            } catch (RuntimeErrorException e) {
                System.out.println("→ RE   " + e.getErrorOutput());
            }
        }

        System.out.println("\n[TEST] Result: " + passed + "/" + cases.length + " passed.");
        System.out.println(passed == cases.length ? "[TEST] ALL PASSED ✓" : "[TEST] SOME FAILED ✗");
    }
}