robolectric/src/main/java/org/robolectric/Robolectric.java
public static org.robolectric.android.AttributeSetBuilder buildAttributeSet() {
    if (useLegacy()) {
      return new AttributeSetBuilderImpl(
          new LegacyResourceResolver(RuntimeEnvironment.application,
              RuntimeEnvironment.getCompileTimeResourceTable())) {};
    } else {
      return new AttributeSetBuilderImpl(
          new ArscResourceResolver(RuntimeEnvironment.application)) {};
    }
  }
public static org.robolectric.android.AttributeSetBuilder buildAttributeSet() {
    if (useLegacy()) {
      return new AttributeSetBuilderImpl(
          new LegacyResourceResolver(RuntimeEnvironment.application,
              RuntimeEnvironment.getCompileTimeResourceTable())) {};
    } else {
      return new AttributeSetBuilderImpl(
          new ArscResourceResolver(RuntimeEnvironment.application)) {};
    }
  }
Allows for the programmatic creation of an {@link AttributeSet}.

Useful for testing {@link View} classes without the need for creating XML snippets.