Finish tests for OmicsIntegrator "Results" methods

[alexlenail]

See currently incomplete tests at:

OmicsIntegrator2/test/test_graph.py

Lines 363 to 383 in 1100a83

	def test_summarize_grid_search(self):
	print("test_summarize_grid_search")
	node_summary_df = oi.summarize_grid_search(self.results, "membership")
	node_summary_df = oi.summarize_grid_search(self.results, "robustness")
	node_summary_df = oi.summarize_grid_search(self.results, "specificity")
	# unknown what should be tested here
	print("...pass")
	def test_get_robust_subgraph_from_randomizations(self):
	print("test_get_robust_subgraph_from_randomizations")
	oi.get_robust_subgraph_from_randomizations(nxgraph, max_size=400, min_component_size=5)
	# unknown what should be tested here
	print("...pass")
	def test_filter_graph_by_component_size(self):
	print("test_filter_graph_by_component_size")
	oi.filter_graph_by_component_size(nxgraph, min_size=5)
	# unknown what should be tested here
	print("...pass")