src/test/java/org/apache/sling/scripting/sightly/impl/engine/runtime/SlingRuntimeObjectModelTest.java

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package org.apache.sling.scripting.sightly.impl.engine.runtime;

import java.util.HashMap;
import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;

import org.apache.sling.api.adapter.Adaptable;
import org.apache.sling.api.resource.ValueMap;
import org.apache.sling.api.wrappers.ValueMapDecorator;
import org.junit.Test;

import static org.junit.Assert.*;

public class SlingRuntimeObjectModelTest {

    private static final String VALUE_MAP_VALUE = "ValueMap value";
    private static final String METHOD_VALUE = "Method value";
    private SlingRuntimeObjectModel slingRuntimeObjectModel = new SlingRuntimeObjectModel();

    @Test
    public void getPropertyFromAdaptableWithField() {
        assertEquals("Expected public fields to have priority over ValueMap adaptable's properties.", FieldTestMockAdaptable.test,
                slingRuntimeObjectModel.getProperty(new FieldTestMockAdaptable(), "test"));
    }

    @Test
    public void getPropertyFromAdaptableWithMethod() {
        assertEquals("Expected public methods to have priority over ValueMap adaptable's properties.", METHOD_VALUE,
                slingRuntimeObjectModel.getProperty(new MethodTestMockAdaptable(), "test"));
    }

    @Test
    public void getPropertyFromAdaptable() {
        assertEquals("Expected to solve property from ValueMap returned by an adaptable.", VALUE_MAP_VALUE,
                slingRuntimeObjectModel.getProperty(new AdaptableTestMock(), "test"));
    }

    @Test
    public void nullChecks() {
        assertNull(slingRuntimeObjectModel.getProperty(null, null));
        assertNull(slingRuntimeObjectModel.getProperty(this, null));
        assertNull(slingRuntimeObjectModel.getProperty(this, ""));
    }

    private abstract class MockAdaptable implements Adaptable {

        ValueMap getValueMap() {
            return new ValueMapDecorator(new HashMap<String, Object>() {{
                put("test", VALUE_MAP_VALUE);
            }});
        }

        @CheckForNull
        @Override
        public <AdapterType> AdapterType adaptTo(@Nonnull Class<AdapterType> aClass) {
            if (aClass == ValueMap.class) {
                return (AdapterType) getValueMap();
            }
            return null;
        }
    }

    public class FieldTestMockAdaptable extends MockAdaptable {

        public static final String test = "Field value";

    }

    public class MethodTestMockAdaptable extends MockAdaptable {
        public String getTest() {
            return METHOD_VALUE;
        }
    }

    public class AdaptableTestMock extends MockAdaptable {}

}