mirror of
https://github.com/grafana/grafana.git
synced 2024-12-01 13:09:22 -06:00
146 lines
3.4 KiB
Go
146 lines
3.4 KiB
Go
package util
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import (
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"fmt"
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"sync"
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"testing"
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"cuelang.org/go/pkg/strings"
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"github.com/stretchr/testify/require"
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"github.com/teris-io/shortid"
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"k8s.io/apimachinery/pkg/util/validation"
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)
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func TestAllowedCharMatchesUidPattern(t *testing.T) {
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for _, c := range alphaRunes {
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if !IsValidShortUID(string(c)) {
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t.Fatalf("charset for creating new shortids contains chars not present in uid pattern")
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}
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}
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}
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// Run with "go test -race -run ^TestThreadSafe$ github.com/grafana/grafana/pkg/util"
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func TestThreadSafe(t *testing.T) {
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// This test was used to showcase the bug, unfortunately there is
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// no way to enable the -race flag programmatically.
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t.Skip()
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// Use 1000 go routines to create 100 UIDs each at roughly the same time.
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var wg sync.WaitGroup
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for i := 0; i < 1000; i++ {
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go func() {
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for ii := 0; ii < 100; ii++ {
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_ = GenerateShortUID()
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}
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wg.Done()
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}()
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wg.Add(1)
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}
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wg.Wait()
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}
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func TestRandomUIDs(t *testing.T) {
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for i := 0; i < 100; i++ {
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v := GenerateShortUID()
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if !IsValidShortUID(v) {
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t.Fatalf("charset for creating new shortids contains chars not present in uid pattern")
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}
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validation := validation.IsQualifiedName(v)
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if validation != nil {
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t.Fatalf("created invalid name: %v", validation)
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}
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// fmt.Println(v)
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}
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// t.FailNow()
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}
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func TestCaseInsensitiveCollisionsUIDs(t *testing.T) {
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history := make(map[string]bool, 0)
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for i := 0; i < 100000; i++ {
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v := GenerateShortUID()
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if false {
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v, _ = shortid.Generate() // collides in less then 500 iterations
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}
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lower := strings.ToLower(v)
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_, exists := history[lower]
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require.False(t, exists, fmt.Sprintf("already found: %s (index:%d)", v, i))
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history[lower] = true
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}
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}
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func TestIsShortUIDTooLong(t *testing.T) {
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var tests = []struct {
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name string
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uid string
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expected bool
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}{
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{
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name: "when the length of uid is longer than 40 chars then IsShortUIDTooLong should return true",
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uid: string(alphaRunes) + string(alphaRunes),
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expected: true,
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},
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{
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name: "when the length of uid is equal too 40 chars then IsShortUIDTooLong should return false",
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uid: "0123456789012345678901234567890123456789",
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expected: false,
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},
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{
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name: "when the length of uid is shorter than 40 chars then IsShortUIDTooLong should return false",
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uid: "012345678901234567890123456789012345678",
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expected: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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require.Equal(t, tt.expected, IsShortUIDTooLong(tt.uid))
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})
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}
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}
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func TestValidateUID(t *testing.T) {
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var tests = []struct {
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name string
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uid string
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expected error
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}{
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{
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name: "no error when string is of correct length",
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uid: "f8cc010c-ee72-4681-89d2-d46e1bd47d33",
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expected: nil,
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},
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{
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name: "error when string is empty",
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uid: "",
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expected: ErrUIDEmpty,
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},
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{
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name: "error when string is too long",
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uid: strings.Repeat("1", MaxUIDLength+1),
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expected: ErrUIDTooLong,
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},
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{
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name: "error when string has invalid characters",
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uid: "f8cc010c.ee72.4681;89d2+d46e1bd47d33",
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expected: ErrUIDFormatInvalid,
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},
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{
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name: "error when string has only whitespaces",
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uid: " ",
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expected: ErrUIDFormatInvalid,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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err := ValidateUID(tt.uid)
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if tt.expected == nil {
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require.NoError(t, err)
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} else {
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require.ErrorIs(t, err, tt.expected)
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}
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})
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}
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}
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