tests/org.eclipse.gmf.tests.xpand/src/org/eclipse/gmf/internal/xpand/expression/codeassist/ExpressionProposalComputerTest.java

/*
 * Copyright (c) 2005, 2009 Sven Efftinge and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Sven Efftinge - Initial API and implementation
 *     Alexander Shatalin (Borland) - initial API and implementation
 */
package org.eclipse.gmf.internal.xpand.expression.codeassist;

import junit.framework.TestCase;

import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.gmf.internal.xpand.model.ExecutionContext;
import org.eclipse.gmf.internal.xpand.model.ExecutionContextImpl;
import org.eclipse.gmf.internal.xpand.model.Scope;
import org.eclipse.gmf.internal.xpand.model.Variable;
import org.eclipse.ocl.expressions.CollectionKind;

public class ExpressionProposalComputerTest extends TestCase {

	private ExpressionProposalComputer.ExpressionSimpleAnalyzer expressionAnalyzer;

	@Override
	protected void setUp() throws Exception {
		expressionAnalyzer = new ExpressionProposalComputer.ExpressionSimpleAnalyzer();
	}

    public final void testComputePrefixAndTargetExpression1() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("test");
        assertEquals("test", s[0]);
        assertNull(s[1]);
    }

    public final void testComputePrefixAndTargetExpression2() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("test.th");
        assertEquals("th", s[0]);
        assertEquals("test", s[1]);
    }

    public final void testComputePrefixAndTargetExpression3() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("test.the.computer.now");
        assertEquals("now", s[0]);
        assertEquals("test.the.computer", s[1]);
    }

    public final void testComputePrefixAndTargetExpression4() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("test(true,\nfalse()).next");
        assertEquals("next", s[0]);
// TODO: un-comment on fixing problems with ReverseScanner        
//        assertEquals("test(true,\nfalse())", s[1]);
    }

    public final void testComputePrefixAndTargetExpression5() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("bdlfsdfows test. bla({}).");
// TODO: un-comment on fixing problems with ReverseScanner
//        assertEquals("", s[0]);
//        assertEquals("test. bla({})", s[1]);
    }

    public final void testComputePrefixAndTargetExpression6() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("test(true, {false, 'hallo',stuff.");
// TODO: un-comment on fixing problems with ReverseScanner
//        assertEquals("", s[0]);
//        assertEquals("stuff", s[1]);
    }

    public final void testComputePrefixAndTargetExpression7() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("rfq.*test");
        assertEquals("test", s[0]);
        assertEquals(null, s[1]);
    }

    public final void testComputePrefixAndTargetExpression8() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("\\x");
        assertEquals("x", s[0]);
        assertEquals(null, s[1]);
    }

    public final void testComputePrefixAndTargetExpression9() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("FOREACH (Set[EPackage])e.all");
        assertEquals("all", s[0]);
        assertEquals("e", s[1]);
    }

    public final void testComputePrefixAndTargetExpression10() {
        final String[] s = expressionAnalyzer.computePrefixAndTargetExpression("TEST ");
        assertEquals("", s[0]);
        assertEquals(null, s[1]);
    }

    public final void off_testSetInState() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable("v", listOfStrings, null));
        final String s = "v.select(e| true";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(2, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getOCLEnvironment().lookup("v").getType());
        assertEquals(oclString, ctx.getOCLEnvironment().lookup("e").getType());
    }

    public final void testSetInState1() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable("v", listOfStrings, null));
        final String s = "v.select(e| true)";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(1, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getOCLEnvironment().lookup("v").getType());
    }

    public final void off_testSetInState2() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier oclBoolean = ctx.getOCLEnvironment().getOCLStandardLibrary().getBoolean();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable("v", listOfStrings, null));
        final String s = "v.select(e| Sequence{true}.collect(e|";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(2, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getOCLEnvironment().lookup("v").getType());
        assertEquals(oclBoolean, ctx.getOCLEnvironment().lookup("e").getType());
    }

    public final void off_testSetInState3() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier oclBoolean = ctx.getOCLEnvironment().getOCLStandardLibrary().getBoolean();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable("v", listOfStrings, null));
        final String s = "v.select(e| Sequence{true}.collect(b|";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(3, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getOCLEnvironment().lookup("v").getType());
        assertEquals(oclString, ctx.getOCLEnvironment().lookup("e").getType());
        assertEquals(oclBoolean, ctx.getOCLEnvironment().lookup("b").getType());
    }

    public final void off_testSetInState4() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier oclBoolean = ctx.getOCLEnvironment().getOCLStandardLibrary().getBoolean();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable(ExecutionContext.IMPLICIT_VARIABLE, listOfStrings, null));
        final String s = "select(e| Sequence{true}.collect(b|";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(3, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getImplicitVariable().getType());
        assertEquals(oclString, ctx.getOCLEnvironment().lookup("e").getType());
        assertEquals(oclBoolean, ctx.getOCLEnvironment().lookup("b").getType());
    }

    public final void off_testSetInState5() {
        ExecutionContextImpl ctx = new ExecutionContextImpl(new Scope() {});
        EClassifier oclString = ctx.getOCLEnvironment().getOCLStandardLibrary().getString();
        EClassifier oclBoolean = ctx.getOCLEnvironment().getOCLStandardLibrary().getBoolean();
        EClassifier listOfStrings = (EClassifier) ctx.getOCLEnvironment().getTypeResolver().resolveCollectionType(CollectionKind.SEQUENCE_LITERAL, oclString);
        ctx = (ExecutionContextImpl) ctx.cloneWithVariable(new Variable(ExecutionContext.IMPLICIT_VARIABLE, listOfStrings, null));
        final String s = "let x = 'test' : select(e| Sequence{true}.collect(b|";
//      FIXME #computeExecutionContext was no-op
//        ctx = (ExecutionContextImpl) ExpressionProposalComputer.computeExecutionContext(s, ctx);
        assertEquals(4, ctx.getOCLEnvironment().getVariables().size());
        assertEquals(listOfStrings, ctx.getImplicitVariable().getType());
        assertEquals(oclString, ctx.getOCLEnvironment().lookup("e").getType());
        assertEquals(oclBoolean, ctx.getOCLEnvironment().lookup("b").getType());
        assertEquals(oclString, ctx.getOCLEnvironment().lookup("x").getType());
    }
}