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These are the vendor files needed for Prometheus support. I have not been able to figure out how to do this properly with gopkg.
42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
# datacounter
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Golang counters for readers/writers
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[](https://travis-ci.org/miolini/datacounter) [](http://godoc.org/github.com/miolini/datacounter) [](http://goreportcard.com/report/miolini/datacounter)
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## Examples
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### ReaderCounter
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```go
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buf := bytes.Buffer{}
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buf.Write(data)
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counter := datacounter.NewReaderCounter(&buf)
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io.Copy(ioutil.Discard, counter)
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if counter.Count() != dataLen {
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t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))
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}`
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```
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### WriterCounter
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```go
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buf := bytes.Buffer{}
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counter := datacounter.NewWriterCounter(&buf)
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counter.Write(data)
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if counter.Count() != dataLen {
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t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))
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}
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```
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### http.ResponseWriter Counter
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```go
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handler := func(w http.ResponseWriter, r *http.Request) {
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w.Write(data)
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}
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req, err := http.NewRequest("GET", "http://example.com/foo", nil)
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if err != nil {
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t.Fatal(err)
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}
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w := httptest.NewRecorder()
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counter := datacounter.NewResponseWriterCounter(w)
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handler(counter, req)
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if counter.Count() != dataLen {
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t.Fatalf("count mismatch len of test data: %d != %d", counter.Count(), len(data))
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}
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```
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