1. A device, comprising: one or more processors to: receive a uniform resource identifier that identifies an object source, the object source including one or more objects organized in a hierarchy of objects; identify an identification technique based on a type of the one or more objects, a first identification technique being identified based on the one or more objects being a first type, or a second identification technique being identified based on the one or more objects being a second type; identify a first object, of the one or more objects, using the identification technique to permit extraction of one or more properties of the first object; extract the one or more properties of the first object based on identifying the first object; select a subset of properties, of the one or more properties, to use to generate an object locator based on extracting the one or more properties, the object locator being associated with locating the first object in the hierarchy of objects; generate the object locator based on selecting the subset of properties; use the object locator to locate a second object that is within a threshold quantity of pixels of the first object; provide the object locator to permit the device to generate a test of the object source; generate the test of the object source using the object locator; and test the object source using the test.