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package writer_test
import (
"github.com/onsi/gomega/gbytes"
. "github.com/onsi/ginkgo"
. "github.com/onsi/ginkgo/internal/writer"
. "github.com/onsi/gomega"
)
var _ = Describe("Writer", func() {
var writer *Writer
var out *gbytes.Buffer
BeforeEach(func() {
out = gbytes.NewBuffer()
writer = New(out)
})
It("should stream directly to the outbuffer by default", func() {
writer.Write([]byte("foo"))
Ω(out).Should(gbytes.Say("foo"))
})
It("should not emit the header when asked to DumpOutWitHeader", func() {
writer.Write([]byte("foo"))
writer.DumpOutWithHeader("my header")
Ω(out).ShouldNot(gbytes.Say("my header"))
Ω(out).Should(gbytes.Say("foo"))
})
Context("when told not to stream", func() {
BeforeEach(func() {
writer.SetStream(false)
})
It("should only write to the buffer when told to DumpOut", func() {
writer.Write([]byte("foo"))
Ω(out).ShouldNot(gbytes.Say("foo"))
writer.DumpOut()
Ω(out).Should(gbytes.Say("foo"))
})
It("should truncate the internal buffer when told to truncate", func() {
writer.Write([]byte("foo"))
writer.Truncate()
writer.DumpOut()
Ω(out).ShouldNot(gbytes.Say("foo"))
writer.Write([]byte("bar"))
writer.DumpOut()
Ω(out).Should(gbytes.Say("bar"))
})
Describe("emitting a header", func() {
Context("when the buffer has content", func() {
It("should emit the header followed by the content", func() {
writer.Write([]byte("foo"))
writer.DumpOutWithHeader("my header")
Ω(out).Should(gbytes.Say("my header"))
Ω(out).Should(gbytes.Say("foo"))
})
})
Context("when the buffer has no content", func() {
It("should not emit the header", func() {
writer.DumpOutWithHeader("my header")
Ω(out).ShouldNot(gbytes.Say("my header"))
})
})
})
})
})
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