Merge pull request #85 from wingyplus/nan-report

gocov: report total coverage as 0.00% if reached and statements are zero

Author: axw

gocov/report.go

@@ -25,6 +25,7 @@ import (
 "fmt"
 "io"
 "io/ioutil"
+"math"
 "os"
 "path/filepath"
 "sort"
@@ -136,6 +137,9 @@ func (r *report) printTotalCoverage(w io.Writer) {
 }
 
 coveragePercentage := float64(totalReached) / float64(totalStatements) * 100
+if math.IsNaN(coveragePercentage) {
+coveragePercentage = 0
+}
 fmt.Fprintf(w, "Total Coverage: %.2f%% (%d/%d)", coveragePercentage, totalReached, totalStatements)
 fmt.Fprintln(w)
 }