Wanderers will face Dagenham & Redbridge in a behind-closed-doors friendly on Tuesday 18th July.
The National League side are managed by former Chairboys striker Ben Strevens.
Matt Bloomfield's side have friendlies lined up away to Aldershot Town on Saturday 22nd July and host Cardiff City in Joe Jacobson's testimonial at Adams Park seven days later, with a behind-closed-doors game against Wealdstone sandwiched in-between on Tuesday 25th July.
Meanwhile, Sam Grace will take a Chairboys XI of development squad trialists to Hanwell Town on Friday 14th July (k.o. 7.45pm).