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-rw-r--r--common/probdist/weighted_dist_test.go80
1 files changed, 0 insertions, 80 deletions
diff --git a/common/probdist/weighted_dist_test.go b/common/probdist/weighted_dist_test.go
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--- a/common/probdist/weighted_dist_test.go
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-/*
- * 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)
- }
- }
- }
-}