Inline_Tests.cpp revision aa35831d1d0e4c798a63fe772430adc4f3a038cd 
1/*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7#include "CurveIntersection.h"
8#include "Intersection_Tests.h"
9#include "IntersectionUtilities.h"
10
11static void assert_that(int x, int y, const char* s) {
12    if (x == y) {
13        return;
14    }
15    SkDebugf("result=%d expected=%d %s\n", x, y, s);
16}
17
18static void side_test() {
19    assert_that(side(-1), 0, "side(-1) != 0");
20    assert_that(side(0), 1, "side(0) != 1");
21    assert_that(side(1), 2, "side(1) != 2");
22}
23
24static void sideBit_test() {
25    assert_that(sideBit(-1), 1, "sideBit(-1) != 1");
26    assert_that(sideBit(0), 2, "sideBit(0) != 2");
27    assert_that(sideBit(1), 4, "sideBit(1) != 4");
28}
29
30static void other_two_test() {
31    for (int x = 0; x < 4; ++x) {
32        for (int y = 0; y < 4; ++y) {
33            if (x == y) {
34                continue;
35            }
36            int mask = other_two(x, y);
37            int all = 1 << x;
38            all |= 1 << y;
39            all |= 1 << (x ^ mask);
40            all |= 1 << (y ^ mask);
41            if (all == 0x0F) {
42                continue;
43            }
44            SkDebugf("[%d,%d] other_two failed mask=%d [%d,%d]\n",
45                x, y, mask, x ^ mask, y ^ mask);
46        }
47    }
48}
49
50void Inline_Tests() {
51    side_test();
52    sideBit_test();
53    other_two_test();
54}
55