test/langtools/jdk/jshell/WrapperTest.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2016, 2019, 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
  * @bug 8159111 8159740
  * @summary test wrappers and dependencies
  * @modules jdk.jshell/jdk.jshell
  * @build KullaTesting
  * @run testng WrapperTest
  */

 import java.util.Collection;
 import java.util.List;
 import org.testng.annotations.Test;
 import jdk.jshell.ErroneousSnippet;
 import jdk.jshell.Snippet;
 import jdk.jshell.Snippet.Kind;
 import jdk.jshell.SourceCodeAnalysis.SnippetWrapper;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertTrue;
 import static jdk.jshell.Snippet.Status.RECOVERABLE_DEFINED;
 import static jdk.jshell.Snippet.Status.VALID;

 @Test
 public class WrapperTest extends KullaTesting {

     public void testMethod() {
         String src = "void glib() { System.out.println(\"hello\"); }";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.METHOD, "void", "glib", "println");
         assertPosition(swl.get(0), src, 0, 4);
         assertPosition(swl.get(0), src, 5, 4);
         assertPosition(swl.get(0), src, 15, 6);

         Snippet g = methodKey(assertEval(src, added(VALID)));
         SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
         assertWrapperHas(swg, src, Kind.METHOD, "void", "glib", "println");
         assertPosition(swg, src, 0, 4);
         assertPosition(swg, src, 5, 4);
         assertPosition(swg, src, 15, 6);
     }

     // test 8159740
     public void testMethodCorralled() {
         String src = "void glib() { f(); }";
         //            _123456789_123456789
         Snippet g = methodKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
         assertWrapperHas(swg, src, Kind.METHOD, "SPIResolutionException",
                 "void", "glib");
         assertPosition(swg, src, 0, 4);
         assertPosition(swg, src, 5, 4);
     }

     // test 8159740
     public void testClassCorralled0() {
         String src = "class AAA { float mmm(double d1234) { return (float) (f0 * d1234); } }";
         //            _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
         Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
         assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
                 "class", "AAA", "float", "mmm", "double", "d1234");
         assertPosition(swa, src, 0, 5);
         assertPosition(swa, src, 6, 3);
         assertPosition(swa, src, 12, 5);
         assertPosition(swa, src, 18, 3);
         assertPosition(swa, src, 22, 6);
         assertPosition(swa, src, 29, 5);
     }

     // test 8159740
     public void testClassCorralled() {
         String src = "class AAA { int xxx = x0 + 4; float mmm(float ffff) { return f0 * ffff; } }";
         //            _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
         Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
         assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
                 "class", "AAA", "int", "xxx", "float", "mmm", "ffff");
         assertPosition(swa, src, 0, 5);
         assertPosition(swa, src, 6, 3);
         assertPosition(swa, src, 12, 3);
         assertPosition(swa, src, 16, 3);
         assertPosition(swa, src, 30, 5);
         assertPosition(swa, src, 36, 3);
         assertPosition(swa, src, 40, 5);
         assertPosition(swa, src, 46, 4);
     }

     // test 8159740
     public void testClassWithConstructorCorralled() {
         String src = "public class AAA { AAA(String b) {} int xxx = x0 + 4; float mmm(float ffff) { return f0 * ffff; } }";
         //            _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
         Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
         assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
                 "class", "AAA", "String", "int", "xxx", "float", "mmm", "ffff");
         assertPosition(swa, src, 7, 5);
         assertPosition(swa, src, 13, 3);
         assertPosition(swa, src, 19, 3);
         assertPosition(swa, src, 23, 5);
         assertPosition(swa, src, 30, 1);
         assertPosition(swa, src, 36, 3);
         assertPosition(swa, src, 40, 3);
         assertPosition(swa, src, 54, 5);
         assertPosition(swa, src, 60, 3);
         assertPosition(swa, src, 64, 5);
         assertPosition(swa, src, 70, 4);
     }

     // test 8159740
     public void testInterfaceCorralled() {
         String src = "interface AAA { default float mmm(double d1234) { return (float) (f0 * d1234); } }";
         //            _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
         Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
         assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
                 "interface", "AAA", "float", "mmm", "double", "d1234");
         assertPosition(swa, src, 0, 9);
         assertPosition(swa, src, 10, 3);
         assertPosition(swa, src, 16, 7);
         assertPosition(swa, src, 24, 5);
         assertPosition(swa, src, 30, 3);
         assertPosition(swa, src, 34, 6);
         assertPosition(swa, src, 41, 5);
     }

     // test 8159740
     public void testEnumCorralled() {
         String src =
                 "public enum Planet {\n" +
                 "    MERCURY (3.303e+23, 2.4397e6),\n" +
                 "    VENUS   (4.869e+24, 6.0518e6),\n" +
                 "    EARTH   (5.976e+24, 6.37814e6),\n" +
                 "    MARS    (6.421e+23, 3.3972e6),\n" +
                 "    JUPITER (1.9e+27,   7.1492e7),\n" +
                 "    SATURN  (5.688e+26, 6.0268e7),\n" +
                 "    URANUS  (8.686e+25, 2.5559e7),\n" +
                 "    NEPTUNE (1.024e+26, 2.4746e7);\n" +
                 "\n" +
                 "    private final double mass;   // in kilograms\n" +
                 "    private final double radius; // in meters\n" +
                 "    Planet(double mass, double radius) {\n" +
                 "        this.mass = mass;\n" +
                 "        this.radius = radius;\n" +
                 "    }\n" +
                 "    private double mass() { return mass; }\n" +
                 "    private double radius() { return radius; }\n" +
                 "\n" +
                 "    double surfaceGravity() {\n" +
                 "        return GRAVITATIONAL_CONSTANT * mass / (radius * radius);\n" +
                 "    }\n" +
                 "    double surfaceWeight(double otherMass) {\n" +
                 "        return otherMass * surfaceGravity();\n" +
                 "    }\n" +
                 "}\n";
         Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
         SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
         assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
                 "enum", "Planet", "double", "mass", "EARTH", "NEPTUNE", "MERCURY",
                 "radius", "surfaceGravity", "surfaceWeight");
     }

     public void testMethodBad() {
         String src = "void flob() { ?????; }";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.METHOD, "void", "flob", "?????");
         assertPosition(swl.get(0), src, 9, 2);

         Snippet f = key(assertEvalFail(src));
         assertEquals(f.kind(), Kind.ERRONEOUS);
         assertEquals(((ErroneousSnippet)f).probableKind(), Kind.METHOD);
         SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
         assertWrapperHas(sw, src, Kind.METHOD, "void", "flob", "?????");
         assertPosition(swl.get(0), src, 14, 5);
     }

     public void testVar() {
         String src = "int gx = 1234;";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.VAR, "int", "gx", "1234");
         assertPosition(swl.get(0), src, 4, 2);

         Snippet g = varKey(assertEval(src, added(VALID)));
         SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
         assertWrapperHas(swg, src, Kind.VAR, "int", "gx", "1234");
         assertPosition(swg, src, 0, 3);
     }

     public void testVarBad() {
         String src = "double dd = ?????;";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.VAR, "double", "dd", "?????");
         assertPosition(swl.get(0), src, 9, 2);

         Snippet f = key(assertEvalFail(src));
         assertEquals(f.kind(), Kind.ERRONEOUS);
         assertEquals(((ErroneousSnippet)f).probableKind(), Kind.VAR);
         SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
         assertWrapperHas(sw, src, Kind.VAR, "double", "dd", "?????");
         assertPosition(swl.get(0), src, 12, 5);
     }

     public void testImport() {
         String src = "import java.lang.*;";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.IMPORT, "import", "java.lang");
         assertPosition(swl.get(0), src, 7, 4);

         Snippet g = key(assertEval(src, added(VALID)));
         SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
         assertWrapperHas(swg, src, Kind.IMPORT, "import", "java.lang");
         assertPosition(swg, src, 0, 6);
     }

     public void testImportBad() {
         String src = "import java.?????;";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.IMPORT, "import", "?????");
         assertPosition(swl.get(0), src, 7, 4);

         Snippet f = key(assertEvalFail(src));
         assertEquals(f.kind(), Kind.ERRONEOUS);
         assertEquals(((ErroneousSnippet)f).probableKind(), Kind.IMPORT);
         SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
         assertWrapperHas(sw, src, Kind.IMPORT, "import", "?????");
         assertPosition(swl.get(0), src, 0, 6);
     }

     public void testErroneous() {
         String src = "@@@@@@@@@@";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 1, "unexpected list length");
         assertWrapperHas(swl.get(0), src, Kind.ERRONEOUS, "@@@@@@@@@@");
         assertPosition(swl.get(0), src, 0, 10);

         Snippet f = key(assertEvalFail(src));
         assertEquals(f.kind(), Kind.ERRONEOUS);
         assertEquals(((ErroneousSnippet)f).probableKind(), Kind.ERRONEOUS);
         SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
         assertWrapperHas(sw, src, Kind.ERRONEOUS, "@@@@@@@@@@");
         assertPosition(swl.get(0), src, 0, 10);
     }

     public void testEmpty() {
         String src = "";
         List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
         assertEquals(swl.size(), 0, "expected empty list");
     }

     public void testDependencies() {
         Snippet a = key(assertEval("int aaa = 6;", added(VALID)));
         Snippet b = key(assertEval("class B { B(int x) { aaa = x; } }", added(VALID)));
         Snippet c = key(assertEval("B ccc() { return new B(aaa); }", added(VALID)));
         Collection<Snippet> dep;
         dep = getState().sourceCodeAnalysis().dependents(c);
         assertEquals(dep.size(), 0);
         dep = getState().sourceCodeAnalysis().dependents(b);
         assertEquals(dep.size(), 1);
         assertTrue(dep.contains(c));
         dep = getState().sourceCodeAnalysis().dependents(a);
         assertEquals(dep.size(), 2);
         assertTrue(dep.contains(c));
         assertTrue(dep.contains(b));
     }

     private void assertWrapperHas(SnippetWrapper sw, String source, Kind kind, String... has) {
         assertEquals(sw.source(), source);
         assertEquals(sw.kind(), kind);
         String s = sw.wrapped();
         if (kind == Kind.IMPORT) {
             assertHas(s, "import");
         } else {
             String cn = sw.fullClassName();
             int idx = cn.lastIndexOf(".");
             assertHas(s, cn.substring(idx+1));
             assertHas(s, "class");
         }
         for (String hx : has) {
             assertHas(s, hx);
         }
     }

     private void assertHas(String s, String has) {
         assertTrue(s.contains(has), "Expected to find '" + has + "' in: '" + s + "'");
     }

     private void assertPosition(SnippetWrapper sw, String source, int start, int length) {
         //System.err.printf("\n#assertPosition:\n#  debug-source: %s\n#  SnippetWrapper --\n#    source: %s\n#    wrapped: %s\n",
         //        source, sw.source(), sw.wrapped());
         //System.err.printf("#  start: %d    length: %d\n", start, length);
         int wpg = sw.sourceToWrappedPosition(start);
         //System.err.printf("#  wrappedPos: %d\n", wpg);
         String wrappedPart = sw.wrapped().substring(wpg, wpg+length);
         String sourcePart = source.substring(start, start+length);
         //System.err.printf("#  wrapped @ wrappedPos: %s\n", wrappedPart);
         //System.err.printf("#  source @ start: %s\n", sourcePart);

         assertEquals(wrappedPart, sourcePart,
                 "position " + wpg + " in " + sw.wrapped());
         assertEquals(sw.wrappedToSourcePosition(wpg), start);
     }
 }
	/*
	* Copyright (c) 2016, 2019, 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
	* @bug 8159111 8159740
	* @summary test wrappers and dependencies
	* @modules jdk.jshell/jdk.jshell
	* @build KullaTesting
	* @run testng WrapperTest
	*/

	import java.util.Collection;
	import java.util.List;
	import org.testng.annotations.Test;
	import jdk.jshell.ErroneousSnippet;
	import jdk.jshell.Snippet;
	import jdk.jshell.Snippet.Kind;
	import jdk.jshell.SourceCodeAnalysis.SnippetWrapper;
	import static org.testng.Assert.assertEquals;
	import static org.testng.Assert.assertTrue;
	import static jdk.jshell.Snippet.Status.RECOVERABLE_DEFINED;
	import static jdk.jshell.Snippet.Status.VALID;

	@Test
	public class WrapperTest extends KullaTesting {

	public void testMethod() {
	String src = "void glib() { System.out.println(\"hello\"); }";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.METHOD, "void", "glib", "println");
	assertPosition(swl.get(0), src, 0, 4);
	assertPosition(swl.get(0), src, 5, 4);
	assertPosition(swl.get(0), src, 15, 6);

	Snippet g = methodKey(assertEval(src, added(VALID)));
	SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
	assertWrapperHas(swg, src, Kind.METHOD, "void", "glib", "println");
	assertPosition(swg, src, 0, 4);
	assertPosition(swg, src, 5, 4);
	assertPosition(swg, src, 15, 6);
	}

	// test 8159740
	public void testMethodCorralled() {
	String src = "void glib() { f(); }";
	// _123456789_123456789
	Snippet g = methodKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
	assertWrapperHas(swg, src, Kind.METHOD, "SPIResolutionException",
	"void", "glib");
	assertPosition(swg, src, 0, 4);
	assertPosition(swg, src, 5, 4);
	}

	// test 8159740
	public void testClassCorralled0() {
	String src = "class AAA { float mmm(double d1234) { return (float) (f0 * d1234); } }";
	// _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
	Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
	assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
	"class", "AAA", "float", "mmm", "double", "d1234");
	assertPosition(swa, src, 0, 5);
	assertPosition(swa, src, 6, 3);
	assertPosition(swa, src, 12, 5);
	assertPosition(swa, src, 18, 3);
	assertPosition(swa, src, 22, 6);
	assertPosition(swa, src, 29, 5);
	}

	// test 8159740
	public void testClassCorralled() {
	String src = "class AAA { int xxx = x0 + 4; float mmm(float ffff) { return f0 * ffff; } }";
	// _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
	Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
	assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
	"class", "AAA", "int", "xxx", "float", "mmm", "ffff");
	assertPosition(swa, src, 0, 5);
	assertPosition(swa, src, 6, 3);
	assertPosition(swa, src, 12, 3);
	assertPosition(swa, src, 16, 3);
	assertPosition(swa, src, 30, 5);
	assertPosition(swa, src, 36, 3);
	assertPosition(swa, src, 40, 5);
	assertPosition(swa, src, 46, 4);
	}

	// test 8159740
	public void testClassWithConstructorCorralled() {
	String src = "public class AAA { AAA(String b) {} int xxx = x0 + 4; float mmm(float ffff) { return f0 * ffff; } }";
	// _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
	Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
	assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
	"class", "AAA", "String", "int", "xxx", "float", "mmm", "ffff");
	assertPosition(swa, src, 7, 5);
	assertPosition(swa, src, 13, 3);
	assertPosition(swa, src, 19, 3);
	assertPosition(swa, src, 23, 5);
	assertPosition(swa, src, 30, 1);
	assertPosition(swa, src, 36, 3);
	assertPosition(swa, src, 40, 3);
	assertPosition(swa, src, 54, 5);
	assertPosition(swa, src, 60, 3);
	assertPosition(swa, src, 64, 5);
	assertPosition(swa, src, 70, 4);
	}

	// test 8159740
	public void testInterfaceCorralled() {
	String src = "interface AAA { default float mmm(double d1234) { return (float) (f0 * d1234); } }";
	// _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
	Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
	assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
	"interface", "AAA", "float", "mmm", "double", "d1234");
	assertPosition(swa, src, 0, 9);
	assertPosition(swa, src, 10, 3);
	assertPosition(swa, src, 16, 7);
	assertPosition(swa, src, 24, 5);
	assertPosition(swa, src, 30, 3);
	assertPosition(swa, src, 34, 6);
	assertPosition(swa, src, 41, 5);
	}

	// test 8159740
	public void testEnumCorralled() {
	String src =
	"public enum Planet {\n" +
	" MERCURY (3.303e+23, 2.4397e6),\n" +
	" VENUS (4.869e+24, 6.0518e6),\n" +
	" EARTH (5.976e+24, 6.37814e6),\n" +
	" MARS (6.421e+23, 3.3972e6),\n" +
	" JUPITER (1.9e+27, 7.1492e7),\n" +
	" SATURN (5.688e+26, 6.0268e7),\n" +
	" URANUS (8.686e+25, 2.5559e7),\n" +
	" NEPTUNE (1.024e+26, 2.4746e7);\n" +
	"\n" +
	" private final double mass; // in kilograms\n" +
	" private final double radius; // in meters\n" +
	" Planet(double mass, double radius) {\n" +
	" this.mass = mass;\n" +
	" this.radius = radius;\n" +
	" }\n" +
	" private double mass() { return mass; }\n" +
	" private double radius() { return radius; }\n" +
	"\n" +
	" double surfaceGravity() {\n" +
	" return GRAVITATIONAL_CONSTANT * mass / (radius * radius);\n" +
	" }\n" +
	" double surfaceWeight(double otherMass) {\n" +
	" return otherMass * surfaceGravity();\n" +
	" }\n" +
	"}\n";
	Snippet a = classKey(assertEval(src, added(RECOVERABLE_DEFINED)));
	SnippetWrapper swa = getState().sourceCodeAnalysis().wrapper(a);
	assertWrapperHas(swa, src, Kind.TYPE_DECL, "SPIResolutionException",
	"enum", "Planet", "double", "mass", "EARTH", "NEPTUNE", "MERCURY",
	"radius", "surfaceGravity", "surfaceWeight");
	}

	public void testMethodBad() {
	String src = "void flob() { ?????; }";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.METHOD, "void", "flob", "?????");
	assertPosition(swl.get(0), src, 9, 2);

	Snippet f = key(assertEvalFail(src));
	assertEquals(f.kind(), Kind.ERRONEOUS);
	assertEquals(((ErroneousSnippet)f).probableKind(), Kind.METHOD);
	SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
	assertWrapperHas(sw, src, Kind.METHOD, "void", "flob", "?????");
	assertPosition(swl.get(0), src, 14, 5);
	}

	public void testVar() {
	String src = "int gx = 1234;";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.VAR, "int", "gx", "1234");
	assertPosition(swl.get(0), src, 4, 2);

	Snippet g = varKey(assertEval(src, added(VALID)));
	SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
	assertWrapperHas(swg, src, Kind.VAR, "int", "gx", "1234");
	assertPosition(swg, src, 0, 3);
	}

	public void testVarBad() {
	String src = "double dd = ?????;";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.VAR, "double", "dd", "?????");
	assertPosition(swl.get(0), src, 9, 2);

	Snippet f = key(assertEvalFail(src));
	assertEquals(f.kind(), Kind.ERRONEOUS);
	assertEquals(((ErroneousSnippet)f).probableKind(), Kind.VAR);
	SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
	assertWrapperHas(sw, src, Kind.VAR, "double", "dd", "?????");
	assertPosition(swl.get(0), src, 12, 5);
	}

	public void testImport() {
	String src = "import java.lang.*;";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.IMPORT, "import", "java.lang");
	assertPosition(swl.get(0), src, 7, 4);

	Snippet g = key(assertEval(src, added(VALID)));
	SnippetWrapper swg = getState().sourceCodeAnalysis().wrapper(g);
	assertWrapperHas(swg, src, Kind.IMPORT, "import", "java.lang");
	assertPosition(swg, src, 0, 6);
	}

	public void testImportBad() {
	String src = "import java.?????;";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.IMPORT, "import", "?????");
	assertPosition(swl.get(0), src, 7, 4);

	Snippet f = key(assertEvalFail(src));
	assertEquals(f.kind(), Kind.ERRONEOUS);
	assertEquals(((ErroneousSnippet)f).probableKind(), Kind.IMPORT);
	SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
	assertWrapperHas(sw, src, Kind.IMPORT, "import", "?????");
	assertPosition(swl.get(0), src, 0, 6);
	}

	public void testErroneous() {
	String src = "@@@@@@@@@@";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 1, "unexpected list length");
	assertWrapperHas(swl.get(0), src, Kind.ERRONEOUS, "@@@@@@@@@@");
	assertPosition(swl.get(0), src, 0, 10);

	Snippet f = key(assertEvalFail(src));
	assertEquals(f.kind(), Kind.ERRONEOUS);
	assertEquals(((ErroneousSnippet)f).probableKind(), Kind.ERRONEOUS);
	SnippetWrapper sw = getState().sourceCodeAnalysis().wrapper(f);
	assertWrapperHas(sw, src, Kind.ERRONEOUS, "@@@@@@@@@@");
	assertPosition(swl.get(0), src, 0, 10);
	}

	public void testEmpty() {
	String src = "";
	List<SnippetWrapper> swl = getState().sourceCodeAnalysis().wrappers(src);
	assertEquals(swl.size(), 0, "expected empty list");
	}

	public void testDependencies() {
	Snippet a = key(assertEval("int aaa = 6;", added(VALID)));
	Snippet b = key(assertEval("class B { B(int x) { aaa = x; } }", added(VALID)));
	Snippet c = key(assertEval("B ccc() { return new B(aaa); }", added(VALID)));
	Collection<Snippet> dep;
	dep = getState().sourceCodeAnalysis().dependents(c);
	assertEquals(dep.size(), 0);
	dep = getState().sourceCodeAnalysis().dependents(b);
	assertEquals(dep.size(), 1);
	assertTrue(dep.contains(c));
	dep = getState().sourceCodeAnalysis().dependents(a);
	assertEquals(dep.size(), 2);
	assertTrue(dep.contains(c));
	assertTrue(dep.contains(b));
	}

	private void assertWrapperHas(SnippetWrapper sw, String source, Kind kind, String... has) {
	assertEquals(sw.source(), source);
	assertEquals(sw.kind(), kind);
	String s = sw.wrapped();
	if (kind == Kind.IMPORT) {
	assertHas(s, "import");
	} else {
	String cn = sw.fullClassName();
	int idx = cn.lastIndexOf(".");
	assertHas(s, cn.substring(idx+1));
	assertHas(s, "class");
	}
	for (String hx : has) {
	assertHas(s, hx);
	}
	}

	private void assertHas(String s, String has) {
	assertTrue(s.contains(has), "Expected to find '" + has + "' in: '" + s + "'");
	}

	private void assertPosition(SnippetWrapper sw, String source, int start, int length) {
	//System.err.printf("\n#assertPosition:\n# debug-source: %s\n# SnippetWrapper --\n# source: %s\n# wrapped: %s\n",
	// source, sw.source(), sw.wrapped());
	//System.err.printf("# start: %d length: %d\n", start, length);
	int wpg = sw.sourceToWrappedPosition(start);
	//System.err.printf("# wrappedPos: %d\n", wpg);
	String wrappedPart = sw.wrapped().substring(wpg, wpg+length);
	String sourcePart = source.substring(start, start+length);
	//System.err.printf("# wrapped @ wrappedPos: %s\n", wrappedPart);
	//System.err.printf("# source @ start: %s\n", sourcePart);

	assertEquals(wrappedPart, sourcePart,
	"position " + wpg + " in " + sw.wrapped());
	assertEquals(sw.wrappedToSourcePosition(wpg), start);
	}
	}