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Side by Side Diff: go/src/infra/libs/bit_field/bf_test.go

Issue 1153883002: go: infra/libs/* now live in luci-go. (Closed) Base URL: https://chromium.googlesource.com/infra/infra.git@master
Patch Set: move the rest too Created 5 years, 7 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 package bf
6
7 import (
8 "testing"
9
10 . "github.com/smartystreets/goconvey/convey"
11 )
12
13 func TestBitField(t *testing.T) {
14 Convey("BitField", t, func() {
15 bf := Make(2000)
16
17 Convey("Should be sized right", func() {
18 So(bf.Size(), ShouldEqual, 2000)
19 So(len(bf.Data), ShouldEqual, 32)
20 })
21
22 Convey("Should be empty", func() {
23 So(bf.All(false), ShouldBeTrue)
24 So(bf.Data[0], ShouldEqual, 0)
25 So(bf.CountSet(), ShouldEqual, 0)
26 So(bf.IsSet(20), ShouldBeFalse)
27 So(bf.IsSet(200001), ShouldBeFalse)
28
29 Convey("and be unset", func() {
30 for i := uint64(0); i < 20; i++ {
31 So(bf.IsSet(i), ShouldBeFalse)
32 }
33 })
34 })
35
36 Convey("Boundary conditions are caught", func() {
37 So(bf.Set(2000), ShouldNotBeNil)
38 So(bf.Clear(2000), ShouldNotBeNil)
39 })
40
41 Convey("and setting [0, 1, 19, 197, 4]", func() {
42 So(bf.Set(0), ShouldBeNil)
43 So(bf.Set(1), ShouldBeNil)
44 So(bf.Set(19), ShouldBeNil)
45 So(bf.Set(197), ShouldBeNil)
46 So(bf.Set(1999), ShouldBeNil)
47 So(bf.Set(4), ShouldBeNil)
48
49 Convey("should count correctly", func() {
50 So(bf.CountSet(), ShouldEqual, 6)
51 })
52
53 Convey("should retrieve correctly", func() {
54 So(bf.IsSet(2), ShouldBeFalse)
55 So(bf.IsSet(18), ShouldBeFalse)
56
57 So(bf.IsSet(0), ShouldBeTrue)
58 So(bf.IsSet(1), ShouldBeTrue)
59 So(bf.IsSet(4), ShouldBeTrue)
60 So(bf.IsSet(19), ShouldBeTrue)
61 So(bf.IsSet(197), ShouldBeTrue)
62 So(bf.IsSet(1999), ShouldBeTrue)
63 })
64
65 Convey("should clear correctly", func() {
66 So(bf.Clear(3), ShouldBeNil)
67 So(bf.Clear(4), ShouldBeNil)
68 So(bf.Clear(197), ShouldBeNil)
69
70 So(bf.IsSet(2), ShouldBeFalse)
71 So(bf.IsSet(3), ShouldBeFalse)
72 So(bf.IsSet(18), ShouldBeFalse)
73
74 So(bf.IsSet(4), ShouldBeFalse)
75 So(bf.IsSet(197), ShouldBeFalse)
76
77 So(bf.IsSet(0), ShouldBeTrue)
78 So(bf.IsSet(1), ShouldBeTrue)
79 So(bf.IsSet(19), ShouldBeTrue)
80
81 So(bf.CountSet(), ShouldEqual, 4)
82 })
83 })
84 })
85 }
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