86
87
t.Errorf("expected %q; got %q", sourceString, sink.String())
98
t.Errorf("ReadAll() = %q, %v, want %q, nil", data, err, "hello world")
110
t.Errorf("Write(`hello world`) = %d, %v, want 11, nil", n, err)
113
t.Errorf("buf.String() = %q, want %q", buf.String(), "hello world")