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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// 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.
goog.provide('goog.math.LineTest');
goog.setTestOnly('goog.math.LineTest');
goog.require('goog.math.Coordinate');
goog.require('goog.math.Line');
goog.require('goog.testing.jsunit');
function testEquals() {
var input = new goog.math.Line(1, 2, 3, 4);
assert(input.equals(input));
}
function testClone() {
var input = new goog.math.Line(1, 2, 3, 4);
assertNotEquals('Clone returns a new object', input, input.clone());
assertTrue('Contents of clone match original', input.equals(input.clone()));
}
function testGetLength() {
var input = new goog.math.Line(0, 0, Math.sqrt(2), Math.sqrt(2));
assertRoughlyEquals(input.getSegmentLengthSquared(), 4, 1e-10);
assertRoughlyEquals(input.getSegmentLength(), 2, 1e-10);
}
function testGetClosestPoint() {
var input = new goog.math.Line(0, 1, 1, 2);
var point = input.getClosestPoint(0, 3);
assertRoughlyEquals(point.x, 1, 1e-10);
assertRoughlyEquals(point.y, 2, 1e-10);
}
function testGetClosestSegmentPoint() {
var input = new goog.math.Line(0, 1, 2, 3);
var point = input.getClosestSegmentPoint(4, 4);
assertRoughlyEquals(point.x, 2, 1e-10);
assertRoughlyEquals(point.y, 3, 1e-10);
point = input.getClosestSegmentPoint(new goog.math.Coordinate(-1, -10));
assertRoughlyEquals(point.x, 0, 1e-10);
assertRoughlyEquals(point.y, 1, 1e-10);
}
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