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32 changes: 32 additions & 0 deletions tests/cli/log/main_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
package main

import (
"bytes"
"testing"
)

func TestAX7_WriteCloser_Close_Good(t *testing.T) {
var buf bytes.Buffer
closer := nopWriteCloser{Writer: &buf}
err := closer.Close()
if err != nil {
t.Fatalf("expected nil close error, got %v", err)
}
}

func TestAX7_WriteCloser_Close_Bad(t *testing.T) {
closer := nopWriteCloser{}
err := closer.Close()
if err != nil {
t.Fatalf("zero-value closer should close without error, got %v", err)
}
}

func TestAX7_WriteCloser_Close_Ugly(t *testing.T) {
closer := nopWriteCloser{}
first := closer.Close()
second := closer.Close()
if first != nil || second != nil {
t.Fatalf("repeated close should be nil, first=%v second=%v", first, second)
}
}
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