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moby--moby/engine/table_test.go

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package engine
import (
"bytes"
"encoding/json"
"testing"
)
func TestTableWriteTo(t *testing.T) {
table := NewTable("", 0)
e := &Env{}
e.Set("foo", "bar")
table.Add(e)
var buf bytes.Buffer
if _, err := table.WriteTo(&buf); err != nil {
t.Fatal(err)
}
output := make(map[string]string)
if err := json.Unmarshal(buf.Bytes(), &output); err != nil {
t.Fatal(err)
}
if len(output) != 1 {
t.Fatalf("Incorrect output: %v", output)
}
if val, exists := output["foo"]; !exists || val != "bar" {
t.Fatalf("Inccorect output: %v", output)
}
}