diff options
Diffstat (limited to 'vendor/github.com/beorn7/perks/histogram/histogram_test.go')
-rw-r--r-- | vendor/github.com/beorn7/perks/histogram/histogram_test.go | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/github.com/beorn7/perks/histogram/histogram_test.go b/vendor/github.com/beorn7/perks/histogram/histogram_test.go new file mode 100644 index 000000000..0575ebeee --- /dev/null +++ b/vendor/github.com/beorn7/perks/histogram/histogram_test.go @@ -0,0 +1,38 @@ +package histogram + +import ( + "math/rand" + "testing" +) + +func TestHistogram(t *testing.T) { + const numPoints = 1e6 + const maxBins = 3 + + h := New(maxBins) + for i := 0; i < numPoints; i++ { + f := rand.ExpFloat64() + h.Insert(f) + } + + bins := h.Bins() + if g := len(bins); g > maxBins { + t.Fatalf("got %d bins, wanted <= %d", g, maxBins) + } + + for _, b := range bins { + t.Logf("%+v", b) + } + + if g := count(h.Bins()); g != numPoints { + t.Fatalf("binned %d points, wanted %d", g, numPoints) + } +} + +func count(bins Bins) int { + binCounts := 0 + for _, b := range bins { + binCounts += b.Count + } + return binCounts +} |