scratch-blocks/tests/jsunit/connection_db_test.js
2019-02-04 10:34:29 -08:00

310 lines
11 KiB
JavaScript

/**
* @license
* Blockly Tests
*
* Copyright 2015 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 verify_DB_(msg, expected, db) {
var equal = (expected.length == db.connections_.length);
if (equal) {
for (var i = 0; i < expected.length; i++) {
if (expected[i] != db.connections_[i]) {
equal = false;
break;
}
}
}
if (equal) {
assertTrue(msg, true);
} else {
assertEquals(msg, expected, db.connections_);
}
}
function test_DB_addConnection() {
var db = new Blockly.ConnectionDB();
var o2 = {y_: 2, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o2);
verify_DB_('Adding connection #2', [o2], db);
var o4 = {y_: 4, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o4);
verify_DB_('Adding connection #4', [o2, o4], db);
var o1 = {y_: 1, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o1);
verify_DB_('Adding connection #1', [o1, o2, o4], db);
var o3a = {y_: 3, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o3a);
verify_DB_('Adding connection #3a', [o1, o2, o3a, o4], db);
var o3b = {y_: 3, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o3b);
verify_DB_('Adding connection #3b', [o1, o2, o3b, o3a, o4], db);
}
function test_DB_removeConnection() {
var db = new Blockly.ConnectionDB();
var o1 = {y_: 1, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
var o2 = {y_: 2, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
var o3a = {y_: 3, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
var o3b = {y_: 3, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
var o3c = {y_: 3, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
var o4 = {y_: 4, sourceBlock_: {},
getSourceBlock: Blockly.Connection.prototype.getSourceBlock};
db.addConnection(o1);
db.addConnection(o2);
db.addConnection(o3c);
db.addConnection(o3b);
db.addConnection(o3a);
db.addConnection(o4);
verify_DB_('Adding connections 1-4', [o1, o2, o3a, o3b, o3c, o4], db);
db.removeConnection_(o2);
verify_DB_('Removing connection #2', [o1, o3a, o3b, o3c, o4], db);
db.removeConnection_(o4);
verify_DB_('Removing connection #4', [o1, o3a, o3b, o3c], db);
db.removeConnection_(o1);
verify_DB_('Removing connection #1', [o3a, o3b, o3c], db);
db.removeConnection_(o3a);
verify_DB_('Removing connection #3a', [o3b, o3c], db);
db.removeConnection_(o3c);
verify_DB_('Removing connection #3c', [o3b], db);
db.removeConnection_(o3b);
verify_DB_('Removing connection #3b', [], db);
}
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, null, true));
}
// 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.connections_[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.connections_[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.connections_[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 test_DB_findPositionForConnection() {
var db = new Blockly.ConnectionDB();
db.addConnection(helper_createConnection(0, 0, Blockly.PREVIOUS_STATEMENT,
null, true));
db.addConnection(helper_createConnection(0, 1, Blockly.PREVIOUS_STATEMENT,
null, true));
db.addConnection(helper_createConnection(0, 2, Blockly.PREVIOUS_STATEMENT,
null, true));
db.addConnection(helper_createConnection(0, 4, Blockly.PREVIOUS_STATEMENT,
null, true));
db.addConnection(helper_createConnection(0, 5, Blockly.PREVIOUS_STATEMENT,
null, true));
assertEquals(5, db.connections_.length);
var conn = helper_createConnection(0, 3, Blockly.PREVIOUS_STATEMENT, null,
true);
assertEquals(3, db.findPositionForConnection_(conn));
}
function test_DB_findConnection() {
var db = new Blockly.ConnectionDB();
for (var i = 0; i < 10; i++) {
db.addConnection(helper_createConnection(i, 0,
Blockly.PREVIOUS_STATEMENT, null, true));
db.addConnection(helper_createConnection(0, i,
Blockly.PREVIOUS_STATEMENT, null, true));
}
var conn = helper_createConnection(3, 3, Blockly.PREVIOUS_STATEMENT, null,
true);
db.addConnection(conn);
assertEquals(conn, db.connections_[db.findConnection(conn)]);
conn = helper_createConnection(3, 3, Blockly.PREVIOUS_STATEMENT, null, true);
assertEquals(-1, db.findConnection(conn));
}
function test_DB_ordering() {
var db = new Blockly.ConnectionDB();
for (var i = 0; i < 10; i++) {
db.addConnection(helper_createConnection(0, 9 - i,
Blockly.PREVIOUS_STATEMENT), null, true);
}
for (i = 0; i < 10; i++) {
assertEquals(i, db.connections_[i].y_);
}
// quasi-random
var xCoords = [-29, -47, -77, 2, 43, 34, -59, -52, -90, -36, -91, 38, 87, -20,
60, 4, -57, 65, -37, -81, 57, 58, -96, 1, 67, -79, 34, 93, -90, -99, -62,
4, 11, -36, -51, -72, 3, -50, -24, -45, -92, -38, 37, 24, -47, -73, 79,
-20, 99, 43, -10, -87, 19, 35, -62, -36, 49, 86, -24, -47, -89, 33, -44,
25, -73, -91, 85, 6, 0, 89, -94, 36, -35, 84, -9, 96, -21, 52, 10, -95, 7,
-67, -70, 62, 9, -40, -95, -9, -94, 55, 57, -96, 55, 8, -48, -57, -87, 81,
23, 65];
var yCoords = [-81, 82, 5, 47, 30, 57, -12, 28, 38, 92, -25, -20, 23, -51, 73,
-90, 8, 28, -51, -15, 81, -60, -6, -16, 77, -62, -42, -24, 35, 95, -46,
-7, 61, -16, 14, 91, 57, -38, 27, -39, 92, 47, -98, 11, -33, -72, 64, 38,
-64, -88, -35, -59, -76, -94, 45, -25, -100, -95, 63, -97, 45, 98, 99, 34,
27, 52, -18, -45, 66, -32, -38, 70, -73, -23, 5, -2, -13, -9, 48, 74, -97,
-11, 35, -79, -16, -77, 83, -57, -53, 35, -44, 100, -27, -15, 5, 39, 33,
-19, -20, -95];
for (i = 0; i < xCoords.length; i++) {
db.addConnection(helper_createConnection(xCoords[i], yCoords[i],
Blockly.PREVIOUS_STATEMENT), null, true);
}
for (i = 1; i < xCoords.length; i++) {
assertTrue(db.connections_[i].y_ >= db.connections_[i - 1].y_);
}
}
function test_SearchForClosest() {
var db = new Blockly.ConnectionDB();
var sharedWorkspace = {id: "Shared workspace"};
// Search an empty list.
assertEquals(null, helper_searchDB(db, 10 /* x */, 10 /* y */,
100 /* radius */));
db.addConnection(helper_createConnection(100, 0, Blockly.PREVIOUS_STATEMENT,
sharedWorkspace, true));
assertEquals(null, helper_searchDB(db, 0, 0, 5, sharedWorkspace));
db = new Blockly.ConnectionDB();
for (var i = 0; i < 10; i++) {
var tempConn = helper_createConnection(0, i, Blockly.PREVIOUS_STATEMENT,
sharedWorkspace, true);
tempConn.sourceBlock_ = helper_makeSourceBlock(sharedWorkspace);
db.addConnection(tempConn);
}
// Should be at 0, 9.
var last = db.connections_[db.connections_.length - 1];
// Correct connection is last in db; many connections in radius.
assertEquals(last, helper_searchDB(db, 0, 10, 15, sharedWorkspace));
// Nothing nearby.
assertEquals(null, helper_searchDB(db, 100, 100, 3, sharedWorkspace));
// First in db, exact match.
assertEquals(db.connections_[0], helper_searchDB(db, 0, 0, 0, sharedWorkspace));
tempConn = helper_createConnection(6, 6, Blockly.PREVIOUS_STATEMENT,
sharedWorkspace, true);
tempConn.sourceBlock_ = helper_makeSourceBlock(sharedWorkspace);
db.addConnection(tempConn);
tempConn = helper_createConnection(5, 5, Blockly.PREVIOUS_STATEMENT,
sharedWorkspace, true);
tempConn.sourceBlock_ = helper_makeSourceBlock(sharedWorkspace);
db.addConnection(tempConn);
var result = helper_searchDB(db, 4, 6, 3, sharedWorkspace);
assertEquals(5, result.x_);
assertEquals(5, result.y_);
}
function helper_getNeighbours(db, x, y, radius) {
return db.getNeighbours(helper_createConnection(x, y, Blockly.NEXT_STATEMENT,
null, true),
radius);
}
function helper_searchDB(db, x, y, radius, shared_workspace) {
var tempConn = helper_createConnection(x, y,
Blockly.NEXT_STATEMENT, shared_workspace, true);
tempConn.sourceBlock_ = helper_makeSourceBlock(shared_workspace);
tempConn.sourceBlock_.nextConnection = tempConn;
var closest = db.searchForClosest(tempConn, radius, {x: 0, y: 0});
return closest.connection;
}
function helper_makeSourceBlock(sharedWorkspace) {
return {workspace: sharedWorkspace,
parentBlock_: null,
getParent: function() { return null; },
movable_: true,
isMovable: function() { return true; },
isShadow: function() { return false; },
isInsertionMarker: function() { return false; },
getFirstStatementConnection: function() { return null; }
};
}
function helper_createConnection(x, y, type, opt_shared_workspace,
opt_rendered) {
var workspace = opt_shared_workspace ? opt_shared_workspace : {};
if (opt_rendered) {
var conn = new Blockly.RenderedConnection({workspace: workspace}, type);
} else {
var conn = new Blockly.Connection({workspace: workspace}, type);
}
conn.x_ = x;
conn.y_ = y;
return conn;
}