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FilteredParameters.java
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FilteredParameters.java
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package org.testng.internal;
import java.util.Iterator;
import java.util.List;
import org.testng.ITestNGMethod;
import org.testng.TestNGException;
class FilteredParameters implements Iterator<Object[]> {
private int index = 0;
private boolean hasWarn = false;
private final Iterator<Object[]> parameters;
private final ITestNGMethod testMethod;
private final String dataProviderName;
private final List<Integer> indices;
public FilteredParameters(
Iterator<Object[]> parameters,
ITestNGMethod testMethod,
String dataProviderName,
List<Integer> indices) {
this.parameters = parameters;
this.testMethod = testMethod;
this.dataProviderName = dataProviderName;
this.indices = indices;
}
@Override
public boolean hasNext() {
if (index == 0 && !parameters.hasNext() && !hasWarn) {
hasWarn = true;
String msg =
String.format(
"The test method '%s' will be skipped since its "
+ "data provider '%s' "
+ "returned an empty array or iterator. ",
testMethod.getQualifiedName(), dataProviderName);
Utils.warn(msg);
}
return parameters.hasNext();
}
@Override
public Object[] next() {
testMethod.setParameterInvocationCount(index);
Object[] next = parameters.next();
if (next == null) {
throw new TestNGException("Parameters must not be null");
}
if (!indices.isEmpty() && !indices.contains(index)) {
// Skip parameters
next = null;
}
index++;
return next;
}
@Override
public void remove() {
throw new UnsupportedOperationException("remove");
}
}