idoneal - nucleotides_test.go

  package meta
  
  import (
  	"strings"
  	"testing"
  )
  
  func TestCountNucleotides(t *testing.T) {
  	for n, test := range [...]struct {
  		Input string
  		Count int
  	}{
  		{
  			"",
  			0,
  		},
  		{
  			"@\nAAA",
  			3,
  		},
  		{
  			"@\nABC\n+\n!!!\n@\nDEFG",
  			7,
  		},
  		{
  			"@\nABC\n+\n!!!\n@\nDEFG\n+\n!!!!\n@\n987654321\n+\n",
  			16,
  		},
  	} {
  		if count, err := CountNucleotides(strings.NewReader(test.Input)); err != nil {
  			t.Errorf("test %d: unexpected error: %s", n+1, err)
  		} else if count != test.Count {
  			t.Errorf("test %d: expecting to count %d nucleotides, got %d", n+1, test.Count, count)
  		}
  	}
  }