Examples with EvaluationContext org.eclipse.core.expressions.EvaluationContext used on opensource projects

Example 56 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project eclipse.platform.runtime by eclipse.

the class ExpressionTests method testTwoReferences.

public void testTwoReferences() throws Exception {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    // $NON-NLS-1$ //$NON-NLS-2$
    IConfigurationElement[] ces = registry.getConfigurationElementsFor("org.eclipse.core.expressions.tests", "testParticipants");
    // $NON-NLS-1$ //$NON-NLS-2$
    IConfigurationElement enable = findExtension(ces, "refTest2").getChildren("enablement")[0];
    EnablementExpression probExpr = (EnablementExpression) ExpressionConverter.getDefault().perform(enable);
    EvaluationContext context = new EvaluationContext(null, Collections.EMPTY_LIST);
    try {
        probExpr.evaluate(context);
        fail("Should report error with no variable");
    } catch (CoreException e) {
    // correct, throw exception
    }
    context.addVariable("activePartId", "org.eclipse.ui.views.TasksView");
    assertEquals(EvaluationResult.FALSE, probExpr.evaluate(context));
    context.addVariable("activePartId", "org.eclipse.ui.views.ProblemsView");
    // we still have no selection in the default variable
    assertEquals(EvaluationResult.FALSE, probExpr.evaluate(context));
    context = new EvaluationContext(context, Collections.singletonList(probExpr));
    assertEquals(EvaluationResult.TRUE, probExpr.evaluate(context));
}

Example 57 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project eclipse.platform.runtime by eclipse.

the class ExpressionTests method testIterateExpressionEmptyOr.

public void testIterateExpressionEmptyOr() throws Exception {
    // $NON-NLS-1$
    IterateExpression exp = new IterateExpression("or");
    List<?> input = new ArrayList<>();
    EvaluationContext context = new EvaluationContext(null, input);
    assertTrue(EvaluationResult.FALSE == exp.evaluate(context));
}

Example 58 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project eclipse.platform.runtime by eclipse.

the class ExpressionTests method testAdaptExpression.

public void testAdaptExpression() throws Exception {
    // $NON-NLS-1$
    AdaptExpression expression = new AdaptExpression("org.eclipse.core.internal.expressions.tests.Adapter");
    // $NON-NLS-1$
    expression.add(new InstanceofExpression("org.eclipse.core.internal.expressions.tests.Adapter"));
    EvaluationResult result = expression.evaluate(new EvaluationContext(null, new Adaptee()));
    assertTrue(result == EvaluationResult.TRUE);
}

Example 59 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project eclipse.platform.runtime by eclipse.

the class ExpressionTests method testWithExpressionUndefinedVariable.

public void testWithExpressionUndefinedVariable() throws Exception {
    WithExpression expr = new WithExpression("variable");
    expr.add(new EqualsExpression(new Object()));
    EvaluationContext context = new EvaluationContext(null, new Object());
    context.addVariable("variable", IEvaluationContext.UNDEFINED_VARIABLE);
    assertEquals(EvaluationResult.FALSE, expr.evaluate(context));
}

Example 60 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project eclipse.platform.runtime by eclipse.

the class ExpressionTests method testCountExpressionOneOrMore.

public void testCountExpressionOneOrMore() throws Exception {
    // $NON-NLS-1$
    CountExpression exp = new CountExpression("+");
    List<String> list = new ArrayList<>();
    EvaluationContext context = new EvaluationContext(null, list);
    assertTrue(EvaluationResult.FALSE == exp.evaluate(context));
    list.clear();
    // $NON-NLS-1$
    list.add("one");
    context = new EvaluationContext(null, list);
    assertTrue(EvaluationResult.TRUE == exp.evaluate(context));
    list.clear();
    // $NON-NLS-1$
    list.add("one");
    // $NON-NLS-1$
    list.add("two");
    context = new EvaluationContext(null, list);
    assertTrue(EvaluationResult.TRUE == exp.evaluate(context));
}