Package org.apache.tapestry.services

Examples of org.apache.tapestry.services.ExpressionEvaluator

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public class TestExpressionBinding extends BindingTestCase
{

    public void testInvariant()
    {  
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        IComponent component = newMock(IComponent.class);
        Location l = fabricateLocation(1);
       
        Object compiled = new Object();
       
        Object expressionValue = "EXPRESSION-VALUE";
       
        ValueConverter vc = newValueConverter();
       
        expect(ec.getCompiledExpression("exp")).andReturn(compiled);
       
        expect(ev.isConstant("exp")).andReturn(true);
       
        expect(ev.readCompiled(component, compiled)).andReturn(expressionValue);
       
        expect(component.getExtendedId()).andReturn("Foo/bar.baz");
       
        replay();
       
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        verify();
    }

    public void testVariant()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent();
        Object compiled = new Object();

        Object expressionValue1 = new Object();
        Object expressionValue2 = new Object();

        ValueConverter vc = newValueConverter();
       
        expect(ec.getCompiledExpression("exp")).andReturn(compiled);

        expect(ev.isConstant("exp")).andReturn(false);

        expect(ev.readCompiled(component, compiled)).andReturn(expressionValue1);

        expect(ev.readCompiled(component, compiled)).andReturn(expressionValue2);
       
        replay();
       
        ExpressionBinding b = new ExpressionBinding("param", l, vc, component,
                "exp", ev, ec);
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        verify();
    }

    public void testSetObject()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent();
        Object compiled = new Object();

        ValueConverter vc = newValueConverter();

        expect(ec.getCompiledExpression("exp")).andReturn(compiled);

        expect(ev.isConstant("exp")).andReturn(false);

        Object newValue = new Object();

        ev.writeCompiled(component, compiled, newValue);

        replay();

        ExpressionBinding b = new ExpressionBinding("param", l, vc, component,
                "exp", ev, ec);
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        verify();
    }

    public void testSetObjectInvariant()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent("Foo/bar.baz");
        Object compiled = new Object();
       
        ValueConverter vc = newValueConverter();

        expect(ec.getCompiledExpression("exp")).andReturn(compiled);

        expect(ev.isConstant("exp")).andReturn(true);

        replay();

        ExpressionBinding b = new ExpressionBinding("parameter foo", l, vc, component,
                "exp", ev, ec);
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        verify();
    }

    public void testSetObjectFailure()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent();
        Object compiled = new Object();

        ValueConverter vc = newValueConverter();

        expect(ec.getCompiledExpression("exp")).andReturn(compiled);

        expect(ev.isConstant("exp")).andReturn(false);

        Object newValue = new Object();

        RuntimeException innerException = new RuntimeException("Failure");

        ev.writeCompiled(component, compiled, newValue);
        expectLastCall().andThrow(innerException);

        replay();

        ExpressionBinding b = new ExpressionBinding("param", l, vc, component,
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        verify();
    }

    public void testCompileExpressionFailure()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent();
        ValueConverter vc = newValueConverter();
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        verify();
    }

    public void testResolveExpressionFailure()
    {
        ExpressionEvaluator ev = newMock(ExpressionEvaluator.class);
        ExpressionCache ec = newMock(ExpressionCache.class);
        Location l = fabricateLocation(1);
       
        IComponent component = newComponent();
        Object compiled = new Object();

        ValueConverter vc = newValueConverter();

        expect(ec.getCompiledExpression("exp")).andReturn(compiled);

        expect(ev.isConstant("exp")).andReturn(false);

        Throwable innerException = new RuntimeException("Failure");

        ev.readCompiled(component, compiled);
        expectLastCall().andThrow(innerException);

        replay();

        ExpressionBinding b = new ExpressionBinding("param", l, vc, component,
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    public void testRead()
    {
        Fixture f = new Fixture("Foo");

        ExpressionEvaluator ee = create();

        assertEquals("Foo", ee.read(f, "value"));
    }
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    public void testReadFail()
    {
        Fixture f = new Fixture();

        ExpressionEvaluator ee = create();

        try
        {
            ee.read(f, "bar");
            unreachable();
        }
        catch (ApplicationRuntimeException ex)
        {
            assertExceptionSubstring(ex, "Unable to read OGNL expression");
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    public void testWrite()
    {
        Fixture f = new Fixture("Foo");

        ExpressionEvaluator ee = create();

        ee.write(f, "value", "Bar");

        assertEquals("Bar", f.getValue());
    }
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Related Classes of org.apache.tapestry.services.ExpressionEvaluator

  • org.apache.tapestry.binding.TestExpressionBinding
  • org.apache.tapestry.components.ForBean
  • org.apache.tapestry.services.impl.TestExpressionCache
  • org.apache.tapestry.services.impl.TestExpressionEvaluator
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