/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.aries.subsystem.core.internal;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.easymock.EasyMock;
import org.junit.Test;
import org.osgi.framework.namespace.PackageNamespace;
import org.osgi.resource.Capability;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;

public class ResourceHelperTest {
	@Test
	public void testMandatoryDirectiveAbsent() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("b", "c")
				.attribute("c", "d")
				.resource(createResourceMock()).build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.directive(PackageNamespace.REQUIREMENT_FILTER_DIRECTIVE,
						"(&(osgi.wiring.package=com.foo)(a=b)(b=c))")
				.resource(createResourceMock()).build();
		assertTrue("Capability should match requirement", ResourceHelper.matches(req, cap));
	}

    private static Resource createResourceMock() {
        return EasyMock.createNiceMock(Resource.class);
    }

    @Test
	public void testMandatoryDirectiveAndNullFilterDirective() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("b", "c")
				.attribute("c", "d")
				.directive(PackageNamespace.CAPABILITY_MANDATORY_DIRECTIVE, "b")
				.resource(createResourceMock()).build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.resource(createResourceMock()).build();
		assertFalse("Capability should not match requirement", ResourceHelper.matches(req, cap));
	}
	
	@Test
	public void testMandatoryDirectiveCaseSensitive() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("bAr", "c")
				.attribute("c", "d")
				.directive(PackageNamespace.CAPABILITY_MANDATORY_DIRECTIVE, "bAr")
				.resource(createResourceMock()).build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.directive(PackageNamespace.REQUIREMENT_FILTER_DIRECTIVE,
						"(&(osgi.wiring.package=com.foo)(a=b)(baR=c)(c=d))")
				.resource(createResourceMock()).build();
		assertFalse("Capability should not match requirement", ResourceHelper.matches(req, cap));
	}
	
	@Test
	public void testMandatoryDirectiveExportPackageFail() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("b", "c")
				.attribute("c", "d")
				.directive(PackageNamespace.CAPABILITY_MANDATORY_DIRECTIVE, "a,c")
				.resource(createResourceMock())
				.build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.directive(PackageNamespace.REQUIREMENT_FILTER_DIRECTIVE,
						"(&(osgi.wiring.package=com.foo)(a=b)(b=c))")
				.resource(createResourceMock()).build();
		assertFalse("Capability should not match requirement", ResourceHelper.matches(req, cap));
	}
	
	@Test
	public void testMandatoryDirectiveExportPackagePass() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("b", "c")
				.attribute("c", "d")
				.directive(PackageNamespace.CAPABILITY_MANDATORY_DIRECTIVE, "a,c")
				.resource(createResourceMock())
				.build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.directive(PackageNamespace.REQUIREMENT_FILTER_DIRECTIVE,
						"(&(osgi.wiring.package=com.foo)(a=b)(c=d))")
				.resource(createResourceMock()).build();
		assertTrue("Capability should match requirement", ResourceHelper.matches(req, cap));
	}
	
	@Test
	public void testMandatoryDirectiveWithWhitespace() {
		Capability cap = new BasicCapability.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.attribute(PackageNamespace.PACKAGE_NAMESPACE, "com.foo")
				.attribute("a", "b")
				.attribute("b", "c")
				.attribute("c", "d")
				.directive(PackageNamespace.CAPABILITY_MANDATORY_DIRECTIVE, "\ra\n, c	")
				.resource(createResourceMock())
				.build();
		Requirement req = new BasicRequirement.Builder()
				.namespace(PackageNamespace.PACKAGE_NAMESPACE)
				.directive(PackageNamespace.REQUIREMENT_FILTER_DIRECTIVE,
						"(&(osgi.wiring.package=com.foo)(a=b)(c=d))")
				.resource(createResourceMock()).build();
		assertTrue("Capability should match requirement", ResourceHelper.matches(req, cap));
	}
}
