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restic/internal/ui/stdio_wrapper_test.go

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2018-04-22 09:57:20 +00:00
package ui
import (
"testing"
"github.com/google/go-cmp/cmp"
)
func TestStdioWrapper(t *testing.T) {
var tests = []struct {
inputs [][]byte
outputs []string
}{
{
inputs: [][]byte{
[]byte("foo"),
},
outputs: []string{
"foo\n",
},
},
{
inputs: [][]byte{
[]byte("foo"),
[]byte("bar"),
[]byte("\n"),
[]byte("baz"),
},
outputs: []string{
"foobar\n",
"baz\n",
},
},
{
inputs: [][]byte{
[]byte("foo"),
[]byte("bar\nbaz\n"),
[]byte("bump\n"),
},
outputs: []string{
"foobar\n",
"baz\n",
"bump\n",
},
},
{
inputs: [][]byte{
[]byte("foo"),
[]byte("bar\nbaz\n"),
[]byte("bum"),
[]byte("p\nx"),
[]byte("x"),
[]byte("x"),
[]byte("z"),
},
outputs: []string{
"foobar\n",
"baz\n",
"bump\n",
"xxxz\n",
},
},
}
for _, test := range tests {
t.Run("", func(t *testing.T) {
var lines []string
print := func(s string) {
lines = append(lines, s)
}
w := newLineWriter(print)
for _, data := range test.inputs {
n, err := w.Write(data)
if err != nil {
t.Fatal(err)
}
if n != len(data) {
t.Errorf("invalid length returned by Write, want %d, got %d", len(data), n)
}
}
err := w.Close()
if err != nil {
t.Fatal(err)
}
if !cmp.Equal(test.outputs, lines) {
t.Error(cmp.Diff(test.outputs, lines))
}
})
}
}