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package logfmt
import (
"reflect"
"testing"
)
func TestScannerSimple(t *testing.T) {
type T struct {
k string
v string
}
tests := []struct {
data string
want []T
}{
{
`a=1 b="bar" ƒ=2h3s r="esc\t" d x=sf `,
[]T{
{"a", "1"},
{"b", "bar"},
{"ƒ", "2h3s"},
{"r", "esc\t"},
{"d", ""},
{"x", "sf"},
},
},
{`x= `, []T{{"x", ""}}},
{`y=`, []T{{"y", ""}}},
{`y`, []T{{"y", ""}}},
{`y=f`, []T{{"y", "f"}}},
}
for _, test := range tests {
var got []T
h := func(key, val []byte) error {
got = append(got, T{string(key), string(val)})
return nil
}
gotoScanner([]byte(test.data), HandlerFunc(h))
if !reflect.DeepEqual(test.want, got) {
t.Errorf("want %q, got %q", test.want, got)
}
}
var called bool
h := func(key, val []byte) error { called = true; return nil }
err := gotoScanner([]byte(`foo="b`), HandlerFunc(h))
if err != ErrUnterminatedString {
t.Errorf("want %v, got %v", ErrUnterminatedString, err)
}
if called {
t.Error("did not expect call to handler")
}
}
func TestScannerAllocs(t *testing.T) {
data := []byte(`a=1 b="bar" ƒ=2h3s r="esc\t" d x=sf `)
h := func(key, val []byte) error { return nil }
allocs := testing.AllocsPerRun(1000, func() {
gotoScanner(data, HandlerFunc(h))
})
if allocs > 1 {
t.Errorf("got %f, want <=1", allocs)
}
}
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