ObjectDiff writes the two objects out as JSON and prints out the identical part of the objects followed by the remaining part of 'a' and finally the remaining part of 'b'.

ObjectGoPrintDiff is like ObjectDiff, but uses go-spew to print the objects, which shows absolutely everything by recursing into every single pointer (go's %#v formatters OTOH stop at a certain point).

ObjectGoPrintSideBySide prints a and b as textual dumps side by side, enabling easy visual scanning for mismatches.

StringDiff diffs a and b and returns a human readable diff.