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syncmap_test.go
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syncmap_test.go
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package syncmap
import (
"testing"
)
type nillable struct {
value string
}
func TestDelete(t *testing.T) {
var m Map[string, *nillable]
// Delete a key that was never present.
m.Delete("test")
// Store a key, Delete it and then try to Load it.
a := &nillable{"value"}
m.Store("test", a)
m.Delete("test")
g, ok := m.Load("test")
if ok || g == a {
t.Error("Key was present after Delete")
}
}
func TestLoad(t *testing.T) {
var m Map[string, *nillable]
// Load a key that was never present.
g, ok := m.Load("test")
if ok || g != nil {
t.Error("Key was present before Store")
}
// Store a key and then try to Load it.
a := &nillable{"value"}
m.Store("test", a)
g, ok = m.Load("test")
if !ok || g != a {
t.Error("Loaded value does not match Stored value")
}
// Store and Load a nil value.
m.Store("testnil", nil)
g, ok = m.Load("testnil")
if !ok || g != nil {
t.Errorf("Loaded value does not match Stored value (nil)")
}
}
func TestLoadAndDelete(t *testing.T) {
var m Map[string, *nillable]
// LoadAndDelete a key that was never present.
g, ok := m.LoadAndDelete("test")
if ok || g != nil {
t.Error("Key was present before Store")
}
// Store a key and then try to LoadAndDelete it.
a := &nillable{"value"}
m.Store("test", a)
g, ok = m.LoadAndDelete("test")
if !ok || g != a {
t.Error("Loaded value does not match Stored value")
}
g, ok = m.LoadAndDelete("test")
if ok || g == a {
t.Error("Loaded value still present after LoadAndDelete")
}
// Store and LoadAndDelete a nil value.
m.Store("testnil", nil)
g, ok = m.LoadAndDelete("testnil")
if !ok || g != nil {
t.Errorf("Loaded value does not match Stored value (nil)")
}
_, ok = m.LoadAndDelete("testnil")
if ok {
t.Errorf("Loaded value still present after LoadAndDelete (nil)")
}
}
func TestLoadOrStore(t *testing.T) {
var m Map[string, *nillable]
a := &nillable{"value"}
// LoadOrStore a key that was never present.
g, ok := m.LoadOrStore("test", a)
if ok || g != a {
t.Error("Key was present before LoadOrStore")
}
a2 := &nillable{"value2"}
// LoadOrStore a different value.
g, ok = m.LoadOrStore("test", a2)
if !ok || g == a2 {
t.Error("Stored value was not Loaded by LoadOrStore")
}
// LoadOrStore a nil value.
g, ok = m.LoadOrStore("testnil", nil)
if ok || g != nil {
t.Errorf("Key was present before LoadOrStore (nil)")
}
g, ok = m.LoadOrStore("testnil", nil)
if !ok || g != nil {
t.Error("Stored value was not Loaded by LoadOrStore (nil)")
}
}
func TestRange(t *testing.T) {
var m Map[string, *nillable]
a := &nillable{"value"}
m.Store("test", a)
m.Store("testnil", nil)
var test, testnil bool
m.Range(func(k string, v *nillable) bool {
if k == "test" && v == a {
test = true
}
if k == "testnil" && v == nil {
testnil = true
}
return true
})
if !test || !testnil {
t.Error("Not all keys were visited")
}
}