common-scope/src/test/java/org/gcube/common/scope/BindingTest.java

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package org.gcube.common.scope;
import static org.junit.Assert.*;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.common.scope.impl.ScopedTasks;
import org.junit.Test;
public class BindingTest {
private ExecutorService executor = Executors.newSingleThreadExecutor();
@Test
public void callablesAreBound() throws Exception {
final String callScope = "somescope";
ScopeProvider.instance.set(callScope);
Callable<Void> unbound = new Callable<Void>() {
@Override
public Void call() throws Exception {
assertEquals("task thread is not bound to call scope, but to "+ScopeProvider.instance.get(),callScope,ScopeProvider.instance.get());
return null;
}
};
Callable<Void> bound = ScopedTasks.bind(unbound);
String newScope = "newscope";
//scope in current thread changes
ScopeProvider.instance.set(newScope);
//task is submittted
executor.submit(bound).get();
//resetting task
assertEquals("call thread does not retain its latest scope",newScope,ScopeProvider.instance.get());
//reset call scope
ScopeProvider.instance.reset();
Callable<Void> cleanupTest = new Callable<Void>() {
@Override
public Void call() throws Exception {
assertNull(ScopeProvider.instance.get());
return null;
}
};
executor.submit(cleanupTest).get();
}
}