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/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test 8080069 8152925
* @summary Test of Snippet redefinition and replacement.
* @build KullaTesting TestingInputStream
* @run testng ReplaceTest
*/
import java.util.Iterator;
import java.util.stream.Stream;
import jdk.jshell.Snippet;
import jdk.jshell.MethodSnippet;
import jdk.jshell.TypeDeclSnippet;
import jdk.jshell.VarSnippet;
import org.testng.annotations.Test;
import static org.testng.Assert.assertFalse;
import static jdk.jshell.Snippet.Status.*;
import static jdk.jshell.Snippet.SubKind.*;
import static org.testng.Assert.assertTrue;
@Test
public class ReplaceTest extends KullaTesting {
public void testRedefine() {
Snippet vx = varKey(assertEval("int x;"));
Snippet mu = methodKey(assertEval("int mu() { return x * 4; }"));
Snippet c = classKey(assertEval("class C { String v() { return \"#\" + mu(); } }"));
assertEval("C c0 = new C();");
assertEval("c0.v();", "\"#0\"");
assertEval("int x = 10;", "10",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(vx, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("c0.v();", "\"#40\"");
assertEval("C c = new C();");
assertEval("c.v();", "\"#40\"");
assertEval("int mu() { return x * 3; }",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(mu, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("c.v();", "\"#30\"");
assertEval("class C { String v() { return \"@\" + mu(); } }",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(c, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("c0.v();", "\"@30\"");
assertEval("c = new C();");
assertEval("c.v();", "\"@30\"");
assertActiveKeys();
}
public void testReplaceClassToVar() {
Snippet oldA = classKey(assertEval("class A { public String toString() { return \"old\"; } }"));
Snippet v = varKey(assertEval("A a = new A();", "old"));
assertEval("a;", "old");
Snippet midA = classKey(assertEval("class A { public String toString() { return \"middle\"; } }",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(oldA, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
assertEval("a;", "middle");
assertEval("class A { int x; public String toString() { return \"new\"; } }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(midA, VALID, OVERWRITTEN, false, MAIN_SNIPPET),
ste(v, VALID, VALID, true, MAIN_SNIPPET));
assertEval("a;", "null");
assertActiveKeys();
}
private <T extends Snippet> void identityMatch(Stream<T> got, T expected) {
Iterator<T> it = got.iterator();
assertTrue(it.hasNext(), "expected exactly one");
assertTrue(expected == it.next(), "Identity must not change");
assertFalse(it.hasNext(), "expected exactly one");
}
public void testReplaceVarToMethod() {
Snippet x = varKey(assertEval("int x;"));
MethodSnippet musn = methodKey(assertEval("double mu() { return x * 4; }"));
assertEval("x == 0;", "true");
assertEval("mu() == 0.0;", "true");
assertEval("double x = 2.5;",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(x, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
identityMatch(getState().methods(), musn);
assertEval("x == 2.5;", "true");
assertEval("mu() == 10.0;", "true"); // Auto redefine
assertActiveKeys();
}
public void testReplaceMethodToMethod() {
Snippet a = methodKey(assertEval("double a() { return 2; }"));
Snippet b = methodKey(assertEval("double b() { return a() * 10; }"));
assertEval("double c() { return b() * 3; }");
assertEval("double d() { return c() + 1000; }");
assertEval("d();", "1060.0");
assertEval("int a() { return 5; }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(a, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("d();", "1150.0");
assertActiveKeys();
}
public void testReplaceClassToMethod() {
Snippet c = classKey(assertEval("class C { int f() { return 7; } }"));
Snippet m = methodKey(assertEval("int m() { return new C().f(); }"));
assertEval("m();", "7");
assertEval("class C { int x = 99; int f() { return x; } }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(c, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("m();", "99");
assertActiveKeys();
}
public void testReplaceVarToClass() {
Snippet x = varKey(assertEval("int x;"));
TypeDeclSnippet c = classKey(assertEval("class A { double a = 4 * x; }"));
assertEval("x == 0;", "true");
assertEval("new A().a == 0.0;", "true");
assertEval("double x = 2.5;",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(x, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
identityMatch(getState().types(), c);
assertEval("x == 2.5;", "true");
assertEval("new A().a == 10.0;", "true");
assertActiveKeys();
}
public void testReplaceMethodToClass() {
Snippet x = methodKey(assertEval("int x() { return 0; }"));
TypeDeclSnippet c = classKey(assertEval("class A { double a = 4 * x(); }"));
assertEval("x() == 0;", "true");
assertEval("new A().a == 0.0;", "true");
assertEval("double x() { return 2.5; }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(x, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("x();", "2.5");
identityMatch(getState().types(), c);
assertEval("x() == 2.5;", "true");
assertEval("new A().a == 10.0;", "true");
assertActiveKeys();
}
public void testReplaceClassToClass() {
TypeDeclSnippet a = classKey(assertEval("class A {}"));
assertTypeDeclSnippet(a, "A", VALID, CLASS_SUBKIND, 0, 0);
TypeDeclSnippet b = classKey(assertEval("class B extends A {}"));
TypeDeclSnippet c = classKey(assertEval("class C extends B {}"));
TypeDeclSnippet d = classKey(assertEval("class D extends C {}"));
assertEval("class A { int x; public String toString() { return \"NEW\"; } }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(a, VALID, OVERWRITTEN, false, MAIN_SNIPPET),
ste(b, VALID, VALID, true, MAIN_SNIPPET),
ste(c, VALID, VALID, true, b),
ste(d, VALID, VALID, true, c));
assertTypeDeclSnippet(b, "B", VALID, CLASS_SUBKIND, 0, 0);
assertTypeDeclSnippet(c, "C", VALID, CLASS_SUBKIND, 0, 0);
assertTypeDeclSnippet(d, "D", VALID, CLASS_SUBKIND, 0, 0);
assertEval("new D();", "NEW");
assertActiveKeys();
}
public void testOverwriteReplaceMethod() {
MethodSnippet k1 = methodKey(assertEval("String m(Integer i) { return i.toString(); }"));
MethodSnippet k2 = methodKey(assertEval("String m(java.lang.Integer i) { return \"java.lang.\" + i.toString(); }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(k1, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
assertMethodDeclSnippet(k1, "m", "(Integer)String", OVERWRITTEN, 0, 0);
assertEval("m(6);", "\"java.lang.6\"");
assertEval("String m(Integer i) { return i.toString(); }",
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(k2, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertMethodDeclSnippet(k2, "m", "(java.lang.Integer)String", OVERWRITTEN, 0, 0);
assertEval("m(6);", "\"6\"");
assertActiveKeys();
}
public void testImportDeclare() {
Snippet singleImport = importKey(assertEval("import java.util.List;", added(VALID)));
Snippet importOnDemand = importKey(assertEval("import java.util.*;", added(VALID)));
Snippet singleStaticImport = importKey(assertEval("import static java.lang.Math.abs;", added(VALID)));
Snippet staticImportOnDemand = importKey(assertEval("import static java.lang.Math.*;", added(VALID)));
assertEval("import java.util.List; //again",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(singleImport, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("import java.util.*; //again",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(importOnDemand, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("import static java.lang.Math.abs; //again",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(singleStaticImport, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertEval("import static java.lang.Math.*; //again",
ste(MAIN_SNIPPET, VALID, VALID, false, null),
ste(staticImportOnDemand, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
assertActiveKeys();
}
@Test(enabled = false) // TODO 8129420
public void testLocalClassEvolve() {
Snippet j = methodKey(assertEval("Object j() { return null; }", added(VALID)));
assertEval("Object j() { class B {}; return null; }",
ste(MAIN_SNIPPET, VALID, VALID, false, null));
assertEval("Object j() { class B {}; return new B(); }",
ste(MAIN_SNIPPET, VALID, VALID, false, null));
assertEval("j().getClass().getSimpleName();", "\"B\"");
assertEval("Object j() { class B { int p; public String toString() { return \"Yep\";} }; return new B(); }",
ste(MAIN_SNIPPET, VALID, VALID, false, null));
assertEval("j().getClass().getSimpleName();", "\"B\"");
assertEval("j();", "Yep");
}
public void testReplaceCausesMethodReferenceError() {
Snippet l = classKey(assertEval("interface Logger { public void log(String message); }", added(VALID)));
Snippet v = varKey(assertEval("Logger l = System.out::println;", added(VALID)));
assertEval("interface Logger { public boolean accept(String message); }",
DiagCheck.DIAG_OK,
DiagCheck.DIAG_ERROR,
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(l, VALID, OVERWRITTEN, false, MAIN_SNIPPET),
ste(v, VALID, RECOVERABLE_NOT_DEFINED, true, MAIN_SNIPPET));
}
public void testReplaceCausesClassCompilationError() {
Snippet l = classKey(assertEval("interface L { }", added(VALID)));
Snippet c = classKey(assertEval("class C implements L { }", added(VALID)));
assertEval("interface L { void m(); }",
DiagCheck.DIAG_OK,
DiagCheck.DIAG_ERROR,
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(l, VALID, OVERWRITTEN, false, MAIN_SNIPPET),
ste(c, VALID, RECOVERABLE_NOT_DEFINED, true, MAIN_SNIPPET));
}
public void testOverwriteNoUpdate() {
String xsi = "int x = 5;";
String xsd = "double x = 3.14159;";
VarSnippet xi = varKey(assertEval(xsi, added(VALID)));
String ms1 = "double m(Integer i) { return i + x; }";
String ms2 = "double m(java.lang.Integer i) { return i + x; }";
MethodSnippet k1 = methodKey(assertEval(ms1, added(VALID)));
VarSnippet xd = varKey(assertEval(xsd,
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(xi, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
MethodSnippet k2 = methodKey(assertEval(ms2,
ste(MAIN_SNIPPET, VALID, VALID, true, null), //TODO: technically, should be false
ste(k1, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
VarSnippet xi2 = varKey(assertEval(xsi,
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(xd, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
varKey(assertEval(xsd,
ste(MAIN_SNIPPET, VALID, VALID, true, null),
ste(xi2, VALID, OVERWRITTEN, false, MAIN_SNIPPET)));
}
}
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