issue979_reported: {
    options = {
        sequences:true, properties:true, dead_code:true, conditionals:true,
        comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
        keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true
    }
    input: {
        function f1() {
            if (a == 1 || b == 2) {
                foo();
            }
        }
        function f2() {
            if (!(a == 1 || b == 2)) {
            }
            else {
                foo();
            }
        }
    }
    expect: {
        function f1() {
            1!=a&&2!=b||foo();
        }
        function f2() {
            1!=a&&2!=b||foo();
        }
    }
}

issue979_test_negated_is_best: {
    options = {
        sequences:true, properties:true, dead_code:true, conditionals:true,
        comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
        keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true
    }
    input: {
        function f3() {
            if (a == 1 | b == 2) {
                foo();
            }
        }
        function f4() {
            if (!(a == 1 | b == 2)) {
            }
            else {
                foo();
            }
        }
        function f5() {
            if (a == 1 && b == 2) {
                foo();
            }
        }
        function f6() {
            if (!(a == 1 && b == 2)) {
            }
            else {
                foo();
            }
        }
        function f7() {
            if (a == 1 || b == 2) {
                foo();
            }
            else {
                return bar();
            }
        }
    }
    expect: {
        function f3() {
            1==a|2==b&&foo();
        }
        function f4() {
            1==a|2==b&&foo();
        }
        function f5() {
            1==a&&2==b&&foo();
        }
        function f6() {
            1!=a||2!=b||foo();
        }
        function f7() {
            if(1!=a&&2!=b)return bar();foo()
        }
    }
}

34df958e64502389a'>root</a>/<a href='/guix/log/tests?id=2d4264b76e0b1021206e68a34df958e64502389a'>tests</a>/<a href='/guix/log/tests/signing-key.sec?id=2d4264b76e0b1021206e68a34df958e64502389a'>signing-key.sec</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/signing-key.sec?id=2d4264b76e0b1021206e68a34df958e64502389a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>