File size: 3,903 Bytes
e36aeda | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | // Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package base
import (
"bytes"
"internal/bisect"
"strings"
"testing"
)
func TestHashDebugGossahashY(t *testing.T) {
hd := NewHashDebug("GOSSAHASH", "y", new(bytes.Buffer))
if hd == nil {
t.Errorf("NewHashDebug should not return nil for GOSSASHASH=y")
}
if !hd.MatchPkgFunc("anything", "anyfunc", nil) {
t.Errorf("NewHashDebug should return yes for everything for GOSSASHASH=y")
}
}
func TestHashDebugGossahashN(t *testing.T) {
hd := NewHashDebug("GOSSAHASH", "n", new(bytes.Buffer))
if hd == nil {
t.Errorf("NewHashDebug should not return nil for GOSSASHASH=n")
}
if hd.MatchPkgFunc("anything", "anyfunc", nil) {
t.Errorf("NewHashDebug should return no for everything for GOSSASHASH=n")
}
}
func TestHashDebugGossahashEmpty(t *testing.T) {
hd := NewHashDebug("GOSSAHASH", "", nil)
if hd != nil {
t.Errorf("NewHashDebug should return nil for GOSSASHASH=\"\"")
}
}
func TestHashDebugMagic(t *testing.T) {
hd := NewHashDebug("FOOXYZZY", "y", nil)
hd0 := NewHashDebug("FOOXYZZY0", "n", nil)
if hd == nil {
t.Errorf("NewHashDebug should have succeeded for FOOXYZZY")
}
if hd0 == nil {
t.Errorf("NewHashDebug should have succeeded for FOOXYZZY0")
}
}
func TestHash(t *testing.T) {
h0 := bisect.Hash("bar", "0")
h1 := bisect.Hash("bar", "1")
t.Logf(`These values are used in other tests: Hash("bar", "0")=%#64b, Hash("bar", "1")=%#64b`, h0, h1)
if h0 == h1 {
t.Errorf("Hashes 0x%x and 0x%x should differ", h0, h1)
}
}
func TestHashMatch(t *testing.T) {
b := new(bytes.Buffer)
hd := NewHashDebug("GOSSAHASH", "v1110", b)
check := hd.MatchPkgFunc("bar", "0", func() string { return "note" })
msg := b.String()
t.Logf("message was '%s'", msg)
if !check {
t.Errorf("GOSSAHASH=1110 should have matched for 'bar', '0'")
}
wantPrefix(t, msg, "bar.0: note [bisect-match ")
wantContains(t, msg, "\nGOSSAHASH triggered bar.0: note ")
}
func TestYMatch(t *testing.T) {
b := new(bytes.Buffer)
hd := NewHashDebug("GOSSAHASH", "vy", b)
check := hd.MatchPkgFunc("bar", "0", nil)
msg := b.String()
t.Logf("message was '%s'", msg)
if !check {
t.Errorf("GOSSAHASH=y should have matched for 'bar', '0'")
}
wantPrefix(t, msg, "bar.0 [bisect-match ")
wantContains(t, msg, "\nGOSSAHASH triggered bar.0 010100100011100101011110")
}
func TestNMatch(t *testing.T) {
b := new(bytes.Buffer)
hd := NewHashDebug("GOSSAHASH", "vn", b)
check := hd.MatchPkgFunc("bar", "0", nil)
msg := b.String()
t.Logf("message was '%s'", msg)
if check {
t.Errorf("GOSSAHASH=n should NOT have matched for 'bar', '0'")
}
wantPrefix(t, msg, "bar.0 [DISABLED] [bisect-match ")
wantContains(t, msg, "\nGOSSAHASH triggered bar.0 [DISABLED] 010100100011100101011110")
}
func TestHashNoMatch(t *testing.T) {
b := new(bytes.Buffer)
hd := NewHashDebug("GOSSAHASH", "01110", b)
check := hd.MatchPkgFunc("bar", "0", nil)
msg := b.String()
t.Logf("message was '%s'", msg)
if check {
t.Errorf("GOSSAHASH=001100 should NOT have matched for 'bar', '0'")
}
if msg != "" {
t.Errorf("Message should have been empty, instead %s", msg)
}
}
func TestHashSecondMatch(t *testing.T) {
b := new(bytes.Buffer)
hd := NewHashDebug("GOSSAHASH", "01110/11110", b)
check := hd.MatchPkgFunc("bar", "0", nil)
msg := b.String()
t.Logf("message was '%s'", msg)
if !check {
t.Errorf("GOSSAHASH=001100, GOSSAHASH0=0011 should have matched for 'bar', '0'")
}
wantContains(t, msg, "\nGOSSAHASH0 triggered bar")
}
func wantPrefix(t *testing.T, got, want string) {
t.Helper()
if !strings.HasPrefix(got, want) {
t.Errorf("want prefix %q, got:\n%s", want, got)
}
}
func wantContains(t *testing.T, got, want string) {
t.Helper()
if !strings.Contains(got, want) {
t.Errorf("want contains %q, got:\n%s", want, got)
}
}
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