30 lines
691 B
Go
30 lines
691 B
Go
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package packer
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import (
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"bytes"
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"testing"
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"cgl.tideland.biz/asserts"
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)
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// Our test Ui that just writes to bytes.Buffers.
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var bufferUi = &ReaderWriterUi{ new(bytes.Buffer), new(bytes.Buffer) }
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func TestReaderWriterUi_Say(t *testing.T) {
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assert := asserts.NewTestingAsserts(t, true)
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bufferUi.Say("foo")
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assert.Equal(readWriter(bufferUi), "foo", "basic output")
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bufferUi.Say("%d", 5)
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assert.Equal(readWriter(bufferUi), "5", "formatting")
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}
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// This reads the output from the bytes.Buffer in our test object
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// and then resets the buffer.
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func readWriter(ui *ReaderWriterUi) (result string) {
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buffer := ui.Writer.(*bytes.Buffer)
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result = buffer.String()
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buffer.Reset()
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return
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}
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