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DependencyMap.java
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DependencyMap.java
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package org.testng;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import org.testng.collections.ListMultiMap;
import org.testng.collections.Maps;
import org.testng.internal.MethodHelper;
import org.testng.internal.RuntimeBehavior;
/** Helper class to keep track of dependencies. */
public class DependencyMap {
private final ListMultiMap<String, ITestNGMethod> m_dependencies = Maps.newListMultiMap();
private final ListMultiMap<String, ITestNGMethod> m_groups = Maps.newListMultiMap();
public DependencyMap(ITestNGMethod[] methods) {
for (ITestNGMethod m : methods) {
m_dependencies.put(m.getQualifiedName(), m);
for (String g : m.getGroups()) {
m_groups.put(g, m);
}
}
}
public List<ITestNGMethod> getMethodsThatBelongTo(String group, ITestNGMethod fromMethod) {
Set<String> uniqueKeys = m_groups.keySet();
Pattern pattern = Pattern.compile(group);
List<ITestNGMethod> result =
m_groups.keySet().stream()
.parallel()
.filter(k -> pattern.matcher(k).matches())
.flatMap(k -> m_groups.get(k).stream())
.collect(Collectors.toList());
for (String k : uniqueKeys) {
if (Pattern.matches(group, k)) {
result.addAll(m_groups.get(k));
}
}
if (result.isEmpty() && !fromMethod.ignoreMissingDependencies()) {
throw new TestNGException(
"DependencyMap::Method \""
+ fromMethod
+ "\" depends on nonexistent group \""
+ group
+ "\"");
} else {
return result;
}
}
public ITestNGMethod getMethodDependingOn(String methodName, ITestNGMethod fromMethod) {
List<ITestNGMethod> l = m_dependencies.get(methodName);
if (l.isEmpty()) {
ITestNGMethod[] array =
m_dependencies.values().stream()
.flatMap(Collection::stream)
.toArray(ITestNGMethod[]::new);
l = Arrays.asList(MethodHelper.findDependedUponMethods(fromMethod, array));
}
if (l.isEmpty()) {
// Try to fetch dependencies by using the test class in the method name.
// This is usually needed in scenarios wherein a child class overrides a base class method.
// So the dependency name needs to be adjusted to use the test class name instead of using the
// declared class.
l = m_dependencies.get(constructMethodNameUsingTestClass(methodName, fromMethod));
}
if (l.isEmpty() && fromMethod.ignoreMissingDependencies()) {
return fromMethod;
}
Optional<ITestNGMethod> found =
l.stream()
.parallel()
.filter(
m ->
isSameInstance(fromMethod, m)
|| belongToDifferentClassHierarchy(fromMethod, m)
|| hasInstance(fromMethod, m))
.findFirst();
if (found.isPresent()) {
return found.get();
}
throw new TestNGException(
"Method \""
+ fromMethod.getQualifiedName()
+ "()\" depends on nonexistent method \""
+ methodName
+ "\"");
}
private static boolean belongToDifferentClassHierarchy(
ITestNGMethod baseClassMethod, ITestNGMethod derivedClassMethod) {
return !baseClassMethod.getRealClass().isAssignableFrom(derivedClassMethod.getRealClass());
}
private static boolean hasInstance(
ITestNGMethod baseClassMethod, ITestNGMethod derivedClassMethod) {
Object baseInstance = baseClassMethod.getInstance();
Object derivedInstance = derivedClassMethod.getInstance();
boolean result = derivedInstance != null || baseInstance != null;
boolean params =
null != baseClassMethod.getFactoryMethodParamsInfo()
&& null != derivedClassMethod.getFactoryMethodParamsInfo().getParameters();
if (result && params && RuntimeBehavior.enforceThreadAffinity()) {
return hasSameParameters(baseClassMethod, derivedClassMethod);
}
return result;
}
private static boolean hasSameParameters(
ITestNGMethod baseClassMethod, ITestNGMethod derivedClassMethod) {
return baseClassMethod
.getFactoryMethodParamsInfo()
.getParameters()[0]
.equals(derivedClassMethod.getFactoryMethodParamsInfo().getParameters()[0]);
}
private static boolean isSameInstance(
ITestNGMethod baseClassMethod, ITestNGMethod derivedClassMethod) {
Object baseInstance = baseClassMethod.getInstance();
Object derivedInstance = derivedClassMethod.getInstance();
boolean nonNullInstances = derivedInstance != null && baseInstance != null;
if (!nonNullInstances) {
return false;
}
if (null != baseClassMethod.getFactoryMethodParamsInfo()
&& RuntimeBehavior.enforceThreadAffinity()) {
return baseInstance.getClass().isAssignableFrom(derivedInstance.getClass())
&& hasSameParameters(baseClassMethod, derivedClassMethod);
}
return baseInstance.getClass().isAssignableFrom(derivedInstance.getClass());
}
private static String constructMethodNameUsingTestClass(
String currentMethodName, ITestNGMethod m) {
int lastIndex = currentMethodName.lastIndexOf('.');
if (lastIndex != -1) {
return m.getTestClass().getRealClass().getName() + currentMethodName.substring(lastIndex);
}
return currentMethodName;
}
}