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package org.graalvm.compiler.hotspot.test;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;

import org.junit.Test;
import org.junit.internal.AssumptionViolatedException;

import org.graalvm.compiler.api.test.Graal;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
import org.graalvm.compiler.hotspot.meta.HotSpotGraphBuilderPlugins;
import org.graalvm.compiler.runtime.RuntimeProvider;

import jdk.vm.ci.code.InstalledCode;
import jdk.vm.ci.meta.ResolvedJavaMethod;

Exercise the execution of the SHA digest substitutions.
/** * Exercise the execution of the SHA digest substitutions. */
public class TestSHASubstitutions extends HotSpotGraalCompilerTest { public byte[] testDigest(String name, byte[] data) throws NoSuchAlgorithmException { MessageDigest digest; try { digest = MessageDigest.getInstance(name, "SUN"); digest.update(data); return digest.digest(); } catch (NoSuchProviderException e) { return null; } } byte[] getData() { byte[] data = new byte[1024 * 16]; for (int i = 0; i < data.length; i++) { data[i] = (byte) i; } return data; } GraalHotSpotVMConfig getConfig() { HotSpotGraalRuntimeProvider rt = (HotSpotGraalRuntimeProvider) Graal.getRequiredCapability(RuntimeProvider.class); return rt.getVMConfig(); } @Test public void testSha1() { if (getConfig().useSHA1Intrinsics()) { String implCompressName = HotSpotGraphBuilderPlugins.lookupIntrinsicName(getConfig(), "sun/security/provider/SHA", "implCompress0", "implCompress"); testWithInstalledIntrinsic("sun.security.provider.SHA", implCompressName, "testDigest", "SHA-1", getData()); } } void testWithInstalledIntrinsic(String className, String methodName, String testSnippetName, Object... args) { Class<?> c; try { c = Class.forName(className); } catch (ClassNotFoundException e) { // It's ok to not find the class - a different security provider // may have been installed return; } InstalledCode code = null; try { ResolvedJavaMethod method = getResolvedJavaMethod(testSnippetName); Object receiver = method.isStatic() ? null : this; Result expect = executeExpected(method, receiver, args); code = compileAndInstallSubstitution(c, methodName); assertTrue("Failed to install " + methodName, code != null); testAgainstExpected(method, expect, receiver, args); } catch (AssumptionViolatedException e) { // Suppress so that subsequent calls to this method within the // same Junit @Test annotated method can proceed. } if (code != null) { code.invalidate(); } } @Test public void testSha256() { if (getConfig().useSHA256Intrinsics()) { String implCompressName = HotSpotGraphBuilderPlugins.lookupIntrinsicName(getConfig(), "sun/security/provider/SHA", "implCompress0", "implCompress"); testWithInstalledIntrinsic("sun.security.provider.SHA2", implCompressName, "testDigest", "SHA-256", getData()); } } @Test public void testSha512() { if (getConfig().useSHA512Intrinsics()) { String implCompressName = HotSpotGraphBuilderPlugins.lookupIntrinsicName(getConfig(), "sun/security/provider/SHA", "implCompress0", "implCompress"); testWithInstalledIntrinsic("sun.security.provider.SHA5", implCompressName, "testDigest", "SHA-512", getData()); } } }