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// +build !appengine
package xxhash
import (
"os/exec"
"sort"
"strings"
"testing"
)
func TestStringAllocs(t *testing.T) {
longStr := strings.Repeat("a", 1000)
t.Run("Sum64String", func(t *testing.T) {
testAllocs(t, func() {
sink = Sum64String(longStr)
})
})
t.Run("Digest.WriteString", func(t *testing.T) {
testAllocs(t, func() {
d := New()
d.WriteString(longStr)
sink = d.Sum64()
})
})
}
// This test is inspired by the Go runtime tests in https://golang.org/cl/57410.
// It asserts that certain important functions may be inlined.
func TestInlining(t *testing.T) {
funcs := map[string]struct{}{
"Sum64String": {},
"(*Digest).WriteString": {},
}
// TODO: it would be better to use the go binary that is running
// 'go test' (if we are running under 'go test').
cmd := exec.Command("go", "test", "-gcflags=-m", "-run", "xxxx")
out, err := cmd.CombinedOutput()
if err != nil {
t.Log(string(out))
t.Fatal(err)
}
for _, line := range strings.Split(string(out), "\n") {
parts := strings.Split(line, ": can inline")
if len(parts) < 2 {
continue
}
delete(funcs, strings.TrimSpace(parts[1]))
}
var failed []string
for fn := range funcs {
failed = append(failed, fn)
}
sort.Strings(failed)
for _, fn := range failed {
t.Errorf("function %s not inlined", fn)
}
}
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