function getContexts(assert, oBinding, iStart, aExpectedIDs, bExpectMore = false) {
		// code under test
		const aContexts = oBinding.getContexts(iStart, 2, 4);

		assert.deepEqual(aContexts.map((oContext) => oContext?.getProperty("AID")), aExpectedIDs,
			`contexts ${iStart}`);
		assert.strictEqual(aContexts.bExpectMore, bExpectMore, `bExpectMore ${iStart}`);
	}
Calls getContext with length 2 and prefetch 4 at the binding and checks the response.

@param {object} assert - The QUnit assert object
@param {sap.ui.model.odata.v4.ODataListBinding} oBinding - The binding
@param {number} iStart - The start index
@param {number[]} aExpectedIDs - The expected IDs in the returned contexts
@param {boolean} bExpectMore - Whether to expect more contexts