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/**
* @license
* Blockly Tests
*
* Copyright 2016 Google Inc.
* https://developers.google.com/blockly/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
function test_DB_getNeighbours() {
var db = new Blockly.ConnectionDB();
// Search an empty list.
assertEquals(helper_getNeighbours(db, 10 /* x */, 10 /* y */, 100 /* radius */).length, 0);
// Set up some connections.
for (var i = 0; i < 10; i++) {
db.addConnection_(helper_createConnection(0, i, Blockly.PREVIOUS_STATEMENT));
}
// Test block belongs at beginning
var result = helper_getNeighbours(db, 0, 0, 4);
assertEquals(5, result.length);
for (i = 0; i < result.length; i++) {
assertNotEquals(result.indexOf(db[i]), -1); // contains
}
// Test block belongs at middle
result = helper_getNeighbours(db, 0, 4, 2);
assertEquals(5, result.length);
for (i = 0; i < result.length; i++) {
assertNotEquals(result.indexOf(db[i + 2]), -1); // contains
}
// Test block belongs at end
result = helper_getNeighbours(db, 0, 9, 4);
assertEquals(5, result.length);
for (i = 0; i < result.length; i++) {
assertNotEquals(result.indexOf(db[i + 5]), -1); // contains
}
// Test block has no neighbours due to being out of range in the x direction
result = helper_getNeighbours(db, 10, 9, 4);
assertEquals(result.length, 0);
// Test block has no neighbours due to being out of range in the y direction
result = helper_getNeighbours(db, 0, 19, 4);
assertEquals(result.length, 0);
// Test block has no neighbours due to being out of range diagonally
result = helper_getNeighbours(db, -2, -2, 2);
assertEquals(result.length, 0);
}
function helper_getNeighbours(db, x, y, radius) {
return db.getNeighbours(helper_createConnection(x, y, Blockly.NEXT_STATEMENT), radius);
}
function helper_createConnection(x, y, type) {
var conn = new Blockly.Connection({workspace: {}}, type);
conn.x_ = x;
conn.y_ = y;
return conn;
}
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