### Question:
Assembly { public boolean isChild(List<Assembly> parents) { for (Assembly invalidGroup:parents) { if (this.isChild(invalidGroup)) return true; } return false; } Assembly(CrystalAssemblies crystalAssemblies, PowerSet engagedSet); PowerSet getEngagedSet(); AssemblyGraph getAssemblyGraph(); int getNumEngagedInterfaceClusters(); CrystalAssemblies getCrystalAssemblies(); boolean isChild(List<Assembly> parents); boolean isChild(Assembly potentialParent); List<Assembly> getChildren(List<Assembly> invalidParents); boolean isValid(); boolean isClosedSymmetry(); boolean isIsomorphic(); List<AssemblyDescription> getDescription(); List<ChainVertex> getStructure(); List<List<ChainVertex>> getStructureCentered(); Map<ChainVertex, Matrix4d> getStructurePacked(); static Map<V, Point3i> positionVertices(final UndirectedGraph<V,E> graph); static Map<V, Point3i> positionVertices(final UndirectedGraph<V,E> graph, final List<V> refVertexes, final List<Point3i> refCells); void writeToPdbFile(File file); void writeToMmCifFile(File file); int getId(); void setId(int id); void setCall(CallType call); CallType getCall(); void setCallReason(String callReason); String getCallReason(); double getScore(); double getConfidence(); @Override boolean equals(Object other); @Override int hashCode(); @Override String toString(); void calcScore(); void normalizeScore(double sumProbs); void calcConfidence();  }### Answer:
@Test public void testIsChild() { boolean[] b1 = {false,false,false,false}; PowerSet a1 = new PowerSet(b1); boolean[] b2 = {true,false,false,false}; PowerSet a2 = new PowerSet(b2); assertTrue(a2.isChild(a1)); boolean[] b3 = {true,false,true,false}; PowerSet a3 = new PowerSet(b3); assertTrue(a3.isChild(a2)); assertTrue(a3.isChild(a1)); boolean[] b4 = {false,false,true,false}; PowerSet a4 = new PowerSet(b4); assertTrue(a4.isChild(a1)); assertFalse(a4.isChild(a2)); assertFalse(a4.isChild(a3)); boolean[] b5 = {true,true,true,false}; PowerSet a5 = new PowerSet(b5); assertTrue(a5.isChild(a1)); assertTrue(a5.isChild(a4)); assertTrue(a5.isChild(a3)); boolean[] b6 = {false,true,false,true}; PowerSet a6 = new PowerSet(b6); assertTrue(a6.isChild(a1)); assertFalse(a6.isChild(a2)); assertFalse(a6.isChild(a3)); assertFalse(a6.isChild(a4)); assertFalse(a6.isChild(a5)); }