Fix some tests.

[lightning.git] / chisquare_test.go

diff --git a/chisquare_test.go b/chisquare_test.go
index c9db0c6710f0a9d7b9070daeb848516e3f7fd295..823023507ab629c17e33d7c544cd3befb219997d 100644 (file)
--- a/chisquare_test.go
+++ b/chisquare_test.go
@@ -48,4 +48,21 @@ func (s *pvalueSuite) TestPvalue(c *check.C) {
                a[i] = !a[i]
        }
        c.Check(fmt.Sprintf("%.8f", pvalue(a, b)), check.Equals, "0.31731051")
+
+       for _, sz := range []int{128, 1024, 4096, 16384} {
+               c.Logf("sz = %d", sz)
+               a = make([]bool, sz)
+               b = make([]bool, sz)
+               c.Check(fmt.Sprintf("%.8f", pvalue(a, b)), check.Equals, "1.00000000")
+               for i := 0; i < len(a)/23; i++ {
+                       a[i] = true
+               }
+               for i := 0; i < len(a)/2; i++ {
+                       b[i] = true
+               }
+               c.Logf("pvalue(a,b) == %e", pvalue(a, b))
+               c.Logf("pvalue(b,a) == %e", pvalue(b, a))
+               c.Check(pvalue(a, b), check.Not(check.Equals), float64(0))
+               c.Check(pvalue(b, a), check.Not(check.Equals), float64(0))
+       }
 }