Fix/coalesce adjacent remove add into replace

[manishbhatias]

Comparision of path for adjacent add + remove operation was broken when offset functionality was introduced

Test case

let jif = require('jiff');
let a = [1,2,3];
let b = [4,2,3];
console.log(jif.diff(a, b, {invertible:false}));

Result

Array (2 items)
0: Object {context: undefined, op: "add", path: "/0", value: 4}
1: Object {context: undefined, op: "remove", path: "/1"}

Expected Result

Array (1 item)
0: Object {context: undefined, op: "replace", path: "/0", value: 4}

Signed-off-by: Manish Bhatia [email protected]

[briancavalier]

Hey @manishbhatias, sorry for the delay, and thank you for adding a test. There seem to be 3 new test failures in this PR branch, whereas all pass on master:

Could you look into those? Thanks!

[manishbhatias]

@briancavalier I have added a fix for the failing test cases and have adjusted my additional test case to account for the invertible patch option.