From f1a0f0a56fdd0fc39f255174ce08c06b91c66c94 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Fri, 23 Feb 2018 11:04:39 +0100
Subject: Update NSS to 3.35-RTM

---
 .../nss/gtests/ssl_gtest/bloomfilter_unittest.cc   | 108 +++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 security/nss/gtests/ssl_gtest/bloomfilter_unittest.cc

(limited to 'security/nss/gtests/ssl_gtest/bloomfilter_unittest.cc')

diff --git a/security/nss/gtests/ssl_gtest/bloomfilter_unittest.cc b/security/nss/gtests/ssl_gtest/bloomfilter_unittest.cc
new file mode 100644
index 000000000..110cfa13a
--- /dev/null
+++ b/security/nss/gtests/ssl_gtest/bloomfilter_unittest.cc
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+extern "C" {
+#include "sslbloom.h"
+}
+
+#include "gtest_utils.h"
+
+namespace nss_test {
+
+// Some random-ish inputs to test with.  These don't result in collisions in any
+// of the configurations that are tested below.
+static const uint8_t kHashes1[] = {
+    0x79, 0x53, 0xb8, 0xdd, 0x6b, 0x98, 0xce, 0x00, 0xb7, 0xdc, 0xe8,
+    0x03, 0x70, 0x8c, 0xe3, 0xac, 0x06, 0x8b, 0x22, 0xfd, 0x0e, 0x34,
+    0x48, 0xe6, 0xe5, 0xe0, 0x8a, 0xd6, 0x16, 0x18, 0xe5, 0x48};
+static const uint8_t kHashes2[] = {
+    0xc6, 0xdd, 0x6e, 0xc4, 0x76, 0xb8, 0x55, 0xf2, 0xa4, 0xfc, 0x59,
+    0x04, 0xa4, 0x90, 0xdc, 0xa7, 0xa7, 0x0d, 0x94, 0x8f, 0xc2, 0xdc,
+    0x15, 0x6d, 0x48, 0x93, 0x9d, 0x05, 0xbb, 0x9a, 0xbc, 0xc1};
+
+typedef struct {
+  unsigned int k;
+  unsigned int bits;
+} BloomFilterConfig;
+
+class BloomFilterTest
+    : public ::testing::Test,
+      public ::testing::WithParamInterface<BloomFilterConfig> {
+ public:
+  BloomFilterTest() : filter_() {}
+
+  void SetUp() { Init(); }
+
+  void TearDown() { sslBloom_Destroy(&filter_); }
+
+ protected:
+  void Init() {
+    if (filter_.filter) {
+      sslBloom_Destroy(&filter_);
+    }
+    ASSERT_EQ(SECSuccess,
+              sslBloom_Init(&filter_, GetParam().k, GetParam().bits));
+  }
+
+  bool Check(const uint8_t* hashes) {
+    return sslBloom_Check(&filter_, hashes) ? true : false;
+  }
+
+  void Add(const uint8_t* hashes, bool expect_collision = false) {
+    EXPECT_EQ(expect_collision, sslBloom_Add(&filter_, hashes) ? true : false);
+    EXPECT_TRUE(Check(hashes));
+  }
+
+  sslBloomFilter filter_;
+};
+
+TEST_P(BloomFilterTest, InitOnly) {}
+
+TEST_P(BloomFilterTest, AddToEmpty) {
+  EXPECT_FALSE(Check(kHashes1));
+  Add(kHashes1);
+}
+
+TEST_P(BloomFilterTest, AddTwo) {
+  Add(kHashes1);
+  Add(kHashes2);
+}
+
+TEST_P(BloomFilterTest, AddOneTwice) {
+  Add(kHashes1);
+  Add(kHashes1, true);
+}
+
+TEST_P(BloomFilterTest, Zero) {
+  Add(kHashes1);
+  sslBloom_Zero(&filter_);
+  EXPECT_FALSE(Check(kHashes1));
+  EXPECT_FALSE(Check(kHashes2));
+}
+
+TEST_P(BloomFilterTest, Fill) {
+  sslBloom_Fill(&filter_);
+  EXPECT_TRUE(Check(kHashes1));
+  EXPECT_TRUE(Check(kHashes2));
+}
+
+static const BloomFilterConfig kBloomFilterConfigurations[] = {
+    {1, 1},    // 1 hash, 1 bit input - high chance of collision.
+    {1, 2},    // 1 hash, 2 bits - smaller than the basic unit size.
+    {1, 3},    // 1 hash, 3 bits - same as basic unit size.
+    {1, 4},    // 1 hash, 4 bits - 2 octets each.
+    {3, 10},   // 3 hashes over a reasonable number of bits.
+    {3, 3},    // Test that we can read multiple bits.
+    {4, 15},   // A credible filter.
+    {2, 18},   // A moderately large allocation.
+    {16, 16},  // Insane, use all of the bits from the hashes.
+    {16, 9},   // This also uses all of the bits from the hashes.
+};
+
+INSTANTIATE_TEST_CASE_P(BloomFilterConfigurations, BloomFilterTest,
+                        ::testing::ValuesIn(kBloomFilterConfigurations));
+
+}  // namespace nspr_test
-- 
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