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if (typeof process !== "undefined") {
    require("amd-loader");
}

define(function (require, exports, module) {
    "use strict";

    var EditSession = require("./edit_session").EditSession;
    var MockRenderer = require("./test/mockrenderer").MockRenderer;
    var Editor = require("./editor").Editor;
    var Search = require("./search").Search;
    var assert = require("./test/assertions");

    module.exports = {
        "test: configure the search object": function () {
            var search = new Search();
            search.set({
                needle: "juhu"
            });
        },

        "test: find simple text in document": function () {
            var session = new EditSession(["juhu kinners 123", "456"]);
            var search = new Search().set({
                needle: "kinners"
            });

            var range = search.find(session);
            assert.position(range.start, 0, 5);
            assert.position(range.end, 0, 12);
        },

        "test: find simple text in next line": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);
            var search = new Search().set({
                needle: "kinners"
            });

            var range = search.find(session);
            assert.position(range.start, 1, 5);
            assert.position(range.end, 1, 12);
        },

        "test: find text starting at cursor position": function () {
            var session = new EditSession(["juhu kinners", "juhu kinners 123"]);
            session.getSelection().moveCursorTo(0, 6);
            var search = new Search().set({
                needle: "kinners"
            });

            var range = search.find(session);
            assert.position(range.start, 1, 5);
            assert.position(range.end, 1, 12);
        },

        "test: wrap search is on by default": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);
            session.getSelection().moveCursorTo(2, 1);

            var search = new Search().set({
                needle: "kinners"
            });

            assert.notEqual(search.find(session), null);
        },

        "test: wrap search should wrap at file end": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);
            session.getSelection().moveCursorTo(2, 1);

            var search = new Search().set({
                needle: "kinners",
                wrap: true
            });

            var range = search.find(session);
            assert.position(range.start, 1, 5);
            assert.position(range.end, 1, 12);
        },

        "test: wrap search should find needle even if it starts inside it": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);
            session.getSelection().moveCursorTo(6, 1);

            var search = new Search().set({
                needle: "kinners",
                wrap: true
            });

            var range = search.find(session);
            assert.position(range.start, 1, 5);
            assert.position(range.end, 1, 12);
        },

        "test: wrap search with no match should return 'null'": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);
            session.getSelection().moveCursorTo(2, 1);

            var search = new Search().set({
                needle: "xyz",
                wrap: true
            });

            assert.equal(search.find(session), null);
        },

        "test: case sensitive is by default off": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);

            var search = new Search().set({
                needle: "JUHU"
            });

            assert.range(search.find(session), 1, 0, 1, 4);
        },

        "test: case sensitive search": function () {
            var session = new EditSession(["abc", "juhu kinners 123", "456"]);

            var search = new Search().set({
                needle: "KINNERS",
                caseSensitive: true
            });

            var range = search.find(session);
            assert.equal(range, null);
        },

        "test: whole word search should not match inside of words": function () {
            var session = new EditSession(["juhukinners", "juhu kinners 123", "456"]);

            var search = new Search().set({
                needle: "kinners",
                wholeWord: true
            });

            var range = search.find(session);
            assert.position(range.start, 1, 5);
            assert.position(range.end, 1, 12);
        },

        "test: find backwards": function () {
            var session = new EditSession(["juhu juhu juhu juhu"]);
            session.getSelection().moveCursorTo(0, 10);
            var search = new Search().set({
                needle: "juhu",
                backwards: true
            });

            var range = search.find(session);
            assert.position(range.start, 0, 5);
            assert.position(range.end, 0, 9);
        },

        "test: find in selection": function () {
            var session = new EditSession(["juhu", "juhu", "juhu", "juhu"]);
            session.getSelection().setSelectionAnchor(1, 0);
            session.getSelection().selectTo(3, 5);

            var search = new Search().set({
                needle: "juhu",
                wrap: true,
                range: session.getSelection().getRange()
            });

            var range = search.find(session);
            assert.position(range.start, 1, 0);
            assert.position(range.end, 1, 4);

            search = new Search().set({
                needle: "juhu",
                wrap: true,
                range: session.getSelection().getRange()
            });

            session.getSelection().setSelectionAnchor(0, 2);
            session.getSelection().selectTo(3, 2);

            var range = search.find(session);
            assert.position(range.start, 1, 0);
            assert.position(range.end, 1, 4);
        },

        "test: find backwards in selection": function () {
            var session = new EditSession(["juhu", "juhu", "juhu", "juhu"]);

            session.getSelection().setSelectionAnchor(0, 2);
            session.getSelection().selectTo(3, 2);

            var search = new Search().set({
                needle: "juhu",
                wrap: true,
                backwards: true,
                range: session.getSelection().getRange()
            });

            var range = search.find(session);
            assert.position(range.start, 2, 0);
            assert.position(range.end, 2, 4);

            search = new Search().set({
                needle: "juhu",
                wrap: true,
                range: session.getSelection().getRange()
            });

            session.getSelection().setSelectionAnchor(0, 2);
            session.getSelection().selectTo(1, 2);

            var range = search.find(session);
            assert.position(range.start, 1, 0);
            assert.position(range.end, 1, 4);
        },

        "test: edge case - match directly before the cursor": function () {
            var session = new EditSession(["123", "123", "juhu"]);

            var search = new Search().set({
                needle: "juhu",
                wrap: true
            });

            session.getSelection().moveCursorTo(2, 5);

            var range = search.find(session);
            assert.position(range.start, 2, 0);
            assert.position(range.end, 2, 4);
        },

        "test: edge case - match backwards directly after the cursor": function () {
            var session = new EditSession(["123", "123", "juhu"]);

            var search = new Search().set({
                needle: "juhu",
                wrap: true,
                backwards: true
            });

            session.getSelection().moveCursorTo(2, 0);

            var range = search.find(session);
            assert.position(range.start, 2, 0);
            assert.position(range.end, 2, 4);
        },

        "test: find using a regular expression": function () {
            var session = new EditSession(["abc123 123 cd", "abc"]);

            var search = new Search().set({
                needle: "\\d+",
                regExp: true
            });

            var range = search.find(session);
            assert.position(range.start, 0, 3);
            assert.position(range.end, 0, 6);
        },

        "test: find using a regular expression and whole word": function () {
            var session = new EditSession(["abc123 123 cd", "abc"]);

            var search = new Search().set({
                needle: "\\d+\\b",
                regExp: true,
                wholeWord: true
            });

            var range = search.find(session);
            assert.position(range.start, 0, 7);
            assert.position(range.end, 0, 10);
        },

        "test: use regular expressions with capture groups": function () {
            var session = new EditSession(["  ab: 12px", "  <h1 abc"]);

            var search = new Search().set({
                needle: "(\\d+)",
                regExp: true
            });

            var range = search.find(session);
            assert.position(range.start, 0, 6);
            assert.position(range.end, 0, 8);
        },

        "test: find all matches in selection": function () {
            var session = new EditSession(["juhu", "juhu", "juhu", "juhu"]);

            session.getSelection().setSelectionAnchor(0, 2);
            session.getSelection().selectTo(3, 2);

            var search = new Search().set({
                needle: "uh",
                wrap: true,
                range: session.getSelection().getRange()
            });

            var ranges = search.findAll(session);

            assert.equal(ranges.length, 2);
            assert.position(ranges[0].start, 1, 1);
            assert.position(ranges[0].end, 1, 3);
            assert.position(ranges[1].start, 2, 1);
            assert.position(ranges[1].end, 2, 3);
        },


        "test: find all multiline matches": function () {
            var session = new EditSession(["juhu", "juhu", "juhu", "juhu"]);

            var search = new Search().set({
                needle: "hu\nju",
                wrap: true
            });

            var ranges = search.findAll(session);

            assert.equal(ranges.length, 3);
            assert.position(ranges[0].start, 0, 2);
            assert.position(ranges[0].end, 1, 2);
            assert.position(ranges[1].start, 1, 2);
            assert.position(ranges[1].end, 2, 2);
        },

        "test: replace() should return the replacement if the input matches the needle": function () {
            var search = new Search().set({
                needle: "juhu"
            });

            assert.equal(search.replace("juhu", "kinners"), "kinners");
            assert.equal(search.replace("", "kinners"), null);
            assert.equal(search.replace(" juhu", "kinners"), null);

            // case sensitivity
            assert.equal(search.replace("Juhu", "kinners"), "kinners");
            search.set({caseSensitive: true});
            assert.equal(search.replace("Juhu", "kinners"), null);

            // regexp replacement
        },

        "test: replace with a RegExp search": function () {
            var search = new Search().set({
                needle: "\\d+",
                regExp: true
            });

            assert.equal(search.replace("123", "kinners"), "kinners");
            assert.equal(search.replace("01234", "kinners"), "kinners");
            assert.equal(search.replace("", "kinners"), null);
            assert.equal(search.replace("a12", "kinners"), null);
            assert.equal(search.replace("12a", "kinners"), null);
        },

        "test: replace with RegExp match and capture groups": function () {
            var search = new Search().set({
                needle: "ab(\\d\\d)",
                regExp: true
            });

            assert.equal(search.replace("ab12", "cd$1"), "cd12");
            assert.equal(search.replace("ab12", "-$&-"), "-ab12-");
            assert.equal(search.replace("ab12", "$$"), "$");
        },

        "test: find all using regular expresion containing $": function () {
            var session = new EditSession(["a", "     b", "c ", "d"]);

            var search = new Search().set({
                needle: "[ ]+$",
                regExp: true,
                wrap: true
            });

            session.getSelection().moveCursorTo(1, 2);
            var ranges = search.findAll(session);

            assert.equal(ranges.length, 1);
            assert.position(ranges[0].start, 2, 1);
            assert.position(ranges[0].end, 2, 2);
        },

        "test: find all matches in a line": function () {
            var session = new EditSession("foo bar foo baz foobar foo");

            var search = new Search().set({
                needle: "foo",
                wrap: true,
                wholeWord: true
            });

            session.getSelection().moveCursorTo(0, 4);

            var ranges = search.findAll(session);

            assert.equal(ranges.length, 3);
            assert.position(ranges[0].start, 0, 0);
            assert.position(ranges[0].end, 0, 3);
            assert.position(ranges[1].start, 0, 8);
            assert.position(ranges[1].end, 0, 11);
            assert.position(ranges[2].start, 0, 23);
            assert.position(ranges[2].end, 0, 26);
        },

        "test: find all matches in a line backwards": function () {
            var session = new EditSession("foo bar foo baz foobar foo");

            var search = new Search().set({
                needle: "foo",
                wrap: true,
                wholeWord: true,
                backwards: true
            });

            session.getSelection().moveCursorTo(0, 13);

            var ranges = search.findAll(session);

            assert.equal(ranges.length, 3);
            assert.position(ranges[2].start, 0, 23);
            assert.position(ranges[2].end, 0, 26);
            assert.position(ranges[1].start, 0, 8);
            assert.position(ranges[1].end, 0, 11);
            assert.position(ranges[0].start, 0, 0);
            assert.position(ranges[0].end, 0, 3);
        },

        "test: find next empty range": function () {
            var session = new EditSession("foo foobar foo");
            var editor = new Editor(new MockRenderer(), session);

            var options = {
                needle: "o*",
                wrap: true,
                regExp: true,
                backwards: false
            };
            var positions = [4, 5.2, 7, 8, 9, 10, 11, 12.2, 14, 0, 1.2, 3];

            session.selection.moveCursorTo(0, 3);
            for (var i = 0; i < 12; i++) {
                editor.find(options)
                var range = editor.selection.getRange();
                var start = range.start.column;
                var len = range.end.column - start;
                assert.equal(start + 0.1 * len, positions[i])
            }
            options.backwards = true;
            positions = [1.2, 1, 0, 14, 12.2, 12, 11, 10, 9, 8, 7, 5.2, 5, 4, 3];
            for (var i = 0; i < 16; i++) {
                editor.find(options);
                var range = editor.selection.getRange();
                var start = range.start.column;
                var len = range.end.column - start;
                console.log(start + 0.1 * len)
            }
        }
    };

});

if (typeof module !== "undefined" && module === require.main) {
    require("asyncjs").test.testcase(module.exports).exec()
}
