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 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
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 * endorse or promote products derived from this software without specific prior written
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package com.oracle.truffle.llvm.tests.other;

import static org.hamcrest.CoreMatchers.containsString;

import java.io.File;
import java.nio.file.Path;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import com.oracle.truffle.llvm.tests.BaseSuiteHarness;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.PolyglotException;
import org.graalvm.polyglot.Source;
import org.graalvm.polyglot.Value;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

import com.oracle.truffle.llvm.runtime.LLVMLanguage;
import com.oracle.truffle.llvm.runtime.options.SulongEngineOption;
import com.oracle.truffle.llvm.tests.options.TestOptions;

public class EagerParsingLazyFailingTest {

    private static final Path TEST_DIR = new File(TestOptions.TEST_SUITE_PATH, "other").toPath();
    private static final String FILENAME = "O0_MEM2REG.bc";

    private static final class Runner implements AutoCloseable {
        private final String testName;
        private final Context context;

        private Value library;

        Runner(String testName) {
            this(testName, Collections.emptyMap());
        }

        Runner(String testName, Map<String, String> options) {
            this.testName = testName;
            this.context = Context.newBuilder().options(options).allowAllAccess(true).build();
            this.library = null;
        }

        @Override
        public void close() {
            context.close();
        }

        Value load() {
            if (library == null) {
                try {
                    File file = TEST_DIR.resolve(testName + BaseSuiteHarness.TEST_DIR_EXT).resolve(FILENAME).toFile();
                    Source source = Source.newBuilder(LLVMLanguage.ID, file).build();
                    library = context.eval(source);
                } catch (RuntimeException e) {
                    throw e;
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
            return library;
        }
    }

    private static HashMap<String, String> eagerParsingOptions() {
        HashMap<String, String> options = new HashMap<>();
        options.put(SulongEngineOption.LAZY_PARSING_NAME, "false");
        return options;
    }

    @Rule public ExpectedException exception = ExpectedException.none();

    @Test
    public void unsupportedInlineAsmNotExecuted() {
        try (Runner runner = new Runner("unsupported_inline_asm.c")) {
            Assert.assertEquals(2, runner.load().invokeMember("run", 0).asInt());
        }
    }

    @Test
    public void unsupportedInlineAsmExecuted() {
        try (Runner runner = new Runner("unsupported_inline_asm.c")) {
            exception.expect(PolyglotException.class);
            exception.expectMessage(containsString("Unsupported operation"));
            Assert.assertEquals(1, runner.load().invokeMember("run", 4).asInt());
        }
    }

    @Test
    public void unsupportedInlineAsmEagerParsingNotExecuted() {
        try (Runner runner = new Runner("unsupported_inline_asm.c", eagerParsingOptions())) {
            Assert.assertEquals(2, runner.load().invokeMember("run", 0).asInt());
        }
    }

    @Test
    public void unsupportedInlineAsmEagerParsingExecuted() {
        try (Runner runner = new Runner("unsupported_inline_asm.c", eagerParsingOptions())) {
            exception.expect(PolyglotException.class);
            exception.expectMessage(containsString("Unsupported operation"));
            Assert.assertEquals(1, runner.load().invokeMember("run", 4).asInt());
        }
    }
}