diff options
Diffstat (limited to 'common/probdist/weighted_dist_test.go')
-rw-r--r-- | common/probdist/weighted_dist_test.go | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/common/probdist/weighted_dist_test.go b/common/probdist/weighted_dist_test.go deleted file mode 100644 index ca7247c..0000000 --- a/common/probdist/weighted_dist_test.go +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright (c) 2014, Yawning Angel <yawning at torproject dot org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -package probdist - -import ( - "fmt" - "testing" - - "github.com/OperatorFoundation/obfs4/common/drbg" -) - -const debug = false - -func TestWeightedDist(t *testing.T) { - seed, err := drbg.NewSeed() - if err != nil { - t.Fatal("failed to generate a DRBG seed:", err) - } - - const nrTrials = 1000000 - - hist := make([]int, 1000) - - w := New(seed, 0, 999, true) - if debug { - // Dump a string representation of the probability table. - fmt.Println("Table:") - var sum float64 - for _, weight := range w.weights { - sum += weight - } - for i, weight := range w.weights { - p := weight / sum - if p > 0.000001 { // Filter out tiny values. - fmt.Printf(" [%d]: %f\n", w.minValue+w.values[i], p) - } - } - fmt.Println() - } - - for i := 0; i < nrTrials; i++ { - value := w.Sample() - hist[value]++ - } - - if debug { - fmt.Println("Generated:") - for value, count := range hist { - if count != 0 { - p := float64(count) / float64(nrTrials) - fmt.Printf(" [%d]: %f (%d)\n", value, p, count) - } - } - } -} |