main_test.gopackage mainimport ( "bufio" "compress/gzip" "fmt" "io" "os" "testing")// TestGzipCompressionfunc TestGzipCompression(t *testing.T) { inFile, err := os.Open("C:/tmp/Isaac.Newton-Opticks.txt") if err != nil { fmt.Println(err) return } defer inFile.Close() outFile, err := os.Create("C:/tmp/Isaac.Newton-Opticks.txt.gz") if err != nil { fmt.Println(err) return } defer outFile.Close()..