Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1155 insertions, 0 deletions

diff --git a/dom/security/test/gtest/TestCSPParser.cpp b/dom/security/test/gtest/TestCSPParser.cpp
new file mode 100644
index 0000000000..735a6c7502
--- /dev/null
+++ b/dom/security/test/gtest/TestCSPParser.cpp
@@ -0,0 +1,1155 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=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/. */
+
+#include "gtest/gtest.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "nsIContentSecurityPolicy.h"
+#include "nsNetUtil.h"
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/dom/nsCSPContext.h"
+#include "mozilla/gtest/MozAssertions.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIPrefBranch.h"
+#include "nsIPrefService.h"
+#include "nsStringFwd.h"
+
+/*
+ * Testing the parser is non trivial, especially since we can not call
+ * parser functionality directly in compiled code tests.
+ * All the tests (except the fuzzy tests at the end) follow the same schemata:
+ *   a) create an nsIContentSecurityPolicy object
+ *   b) set the selfURI in SetRequestContextWithPrincipal
+ *   c) append one or more policies by calling AppendPolicy
+ *   d) check if the policy count is correct by calling GetPolicyCount
+ *   e) compare the result of the policy with the expected output
+ *      using the struct PolicyTest;
+ *
+ * In general we test:
+ * a) policies that the parser should accept
+ * b) policies that the parser should reject
+ * c) policies that are randomly generated (fuzzy tests)
+ *
+ * Please note that fuzzy tests are *DISABLED* by default and shold only
+ * be run *OFFLINE* whenever code in nsCSPParser changes.
+ * To run fuzzy tests, flip RUN_OFFLINE_TESTS to 1.
+ *
+ */
+
+#define RUN_OFFLINE_TESTS 0
+
+/*
+ * Offline tests are separated in three different groups:
+ *  * TestFuzzyPolicies - complete random ASCII input
+ *  * TestFuzzyPoliciesIncDir - a directory name followed by random ASCII
+ *  * TestFuzzyPoliciesIncDirLimASCII - a directory name followed by limited
+ * ASCII which represents more likely user input.
+ *
+ *  We run each of this categories |kFuzzyRuns| times.
+ */
+
+#if RUN_OFFLINE_TESTS
+static const uint32_t kFuzzyRuns = 10000;
+#endif
+
+// For fuzzy testing we actually do not care about the output,
+// we just want to make sure that the parser can handle random
+// input, therefore we use kFuzzyExpectedPolicyCount to return early.
+static const uint32_t kFuzzyExpectedPolicyCount = 111;
+
+static const uint32_t kMaxPolicyLength = 96;
+
+struct PolicyTest {
+  char policy[kMaxPolicyLength];
+  char expectedResult[kMaxPolicyLength];
+};
+
+nsresult runTest(
+    uint32_t aExpectedPolicyCount,  // this should be 0 for policies which
+                                    // should fail to parse
+    const char* aPolicy, const char* aExpectedResult) {
+  nsresult rv;
+
+  // we init the csp with http://www.selfuri.com
+  nsCOMPtr<nsIURI> selfURI;
+  rv = NS_NewURI(getter_AddRefs(selfURI), "http://www.selfuri.com");
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIPrincipal> selfURIPrincipal;
+  mozilla::OriginAttributes attrs;
+  selfURIPrincipal =
+      mozilla::BasePrincipal::CreateContentPrincipal(selfURI, attrs);
+  NS_ENSURE_TRUE(selfURIPrincipal, NS_ERROR_FAILURE);
+
+  // create a CSP object
+  nsCOMPtr<nsIContentSecurityPolicy> csp =
+      do_CreateInstance(NS_CSPCONTEXT_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // for testing the parser we only need to set a principal which is needed
+  // to translate the keyword 'self' into an actual URI.
+  rv =
+      csp->SetRequestContextWithPrincipal(selfURIPrincipal, selfURI, u""_ns, 0);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // append a policy
+  nsString policyStr;
+  policyStr.AssignASCII(aPolicy);
+  rv = csp->AppendPolicy(policyStr, false, false);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // when executing fuzzy tests we do not care about the actual output
+  // of the parser, we just want to make sure that the parser is not crashing.
+  if (aExpectedPolicyCount == kFuzzyExpectedPolicyCount) {
+    return NS_OK;
+  }
+
+  // verify that the expected number of policies exists
+  uint32_t actualPolicyCount;
+  rv = csp->GetPolicyCount(&actualPolicyCount);
+  NS_ENSURE_SUCCESS(rv, rv);
+  if (actualPolicyCount != aExpectedPolicyCount) {
+    EXPECT_TRUE(false)
+        << "Actual policy count not equal to expected policy count ("
+        << actualPolicyCount << " != " << aExpectedPolicyCount
+        << ") for policy: " << aPolicy;
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  // if the expected policy count is 0, we can return, because
+  // we can not compare any output anyway. Used when parsing
+  // errornous policies.
+  if (aExpectedPolicyCount == 0) {
+    return NS_OK;
+  }
+
+  // compare the parsed policy against the expected result
+  nsString parsedPolicyStr;
+  // checking policy at index 0, which is the one what we appended.
+  rv = csp->GetPolicyString(0, parsedPolicyStr);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!NS_ConvertUTF16toUTF8(parsedPolicyStr).EqualsASCII(aExpectedResult)) {
+    EXPECT_TRUE(false) << "Actual policy does not match expected policy ("
+                       << NS_ConvertUTF16toUTF8(parsedPolicyStr).get()
+                       << " != " << aExpectedResult << ")";
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  return NS_OK;
+}
+
+// ============================= run Tests ========================
+
+nsresult runTestSuite(const PolicyTest* aPolicies, uint32_t aPolicyCount,
+                      uint32_t aExpectedPolicyCount) {
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
+  bool navigateTo = false;
+  bool wasmUnsafeEval = false;
+  if (prefs) {
+    prefs->GetBoolPref("security.csp.enableNavigateTo", &navigateTo);
+    prefs->SetBoolPref("security.csp.enableNavigateTo", true);
+    prefs->GetBoolPref("security.csp.wasm-unsafe-eval.enabled",
+                       &wasmUnsafeEval);
+    prefs->SetBoolPref("security.csp.wasm-unsafe-eval.enabled", true);
+  }
+
+  for (uint32_t i = 0; i < aPolicyCount; i++) {
+    rv = runTest(aExpectedPolicyCount, aPolicies[i].policy,
+                 aPolicies[i].expectedResult);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  if (prefs) {
+    prefs->SetBoolPref("security.csp.enableNavigateTo", navigateTo);
+    prefs->SetBoolPref("security.csp.wasm-unsafe-eval.enabled", wasmUnsafeEval);
+  }
+
+  return NS_OK;
+}
+
+// ============================= TestDirectives ========================
+
+TEST(CSPParser, Directives)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "connect-src xn--mnchen-3ya.de",
+      "connect-src http://xn--mnchen-3ya.de"},
+    { "default-src http://www.example.com",
+      "default-src http://www.example.com" },
+    { "script-src http://www.example.com",
+      "script-src http://www.example.com" },
+    { "object-src http://www.example.com",
+      "object-src http://www.example.com" },
+    { "style-src http://www.example.com",
+      "style-src http://www.example.com" },
+    { "img-src http://www.example.com",
+      "img-src http://www.example.com" },
+    { "media-src http://www.example.com",
+      "media-src http://www.example.com" },
+    { "frame-src http://www.example.com",
+      "frame-src http://www.example.com" },
+    { "font-src http://www.example.com",
+      "font-src http://www.example.com" },
+    { "connect-src http://www.example.com",
+      "connect-src http://www.example.com" },
+    { "report-uri http://www.example.com",
+      "report-uri http://www.example.com/" },
+    { "script-src 'nonce-correctscriptnonce'",
+      "script-src 'nonce-correctscriptnonce'" },
+    { "script-src 'nonce-a'",
+      "script-src 'nonce-a'" },
+    { "script-src 'sha256-a'",
+      "script-src 'sha256-a'" },
+    { "script-src 'sha256-siVR8vAcqP06h2ppeNwqgjr0yZ6yned4X2VF84j4GmI='",
+      "script-src 'sha256-siVR8vAcqP06h2ppeNwqgjr0yZ6yned4X2VF84j4GmI='" },
+    { "script-src 'nonce-foo' 'unsafe-inline' ",
+      "script-src 'nonce-foo' 'unsafe-inline'" },
+    { "script-src 'nonce-foo' 'strict-dynamic' 'unsafe-inline' https:  ",
+      "script-src 'nonce-foo' 'strict-dynamic' 'unsafe-inline' https:" },
+    { "script-src 'nonce-foo' 'strict-dynamic' 'unsafe-inline' 'report-sample' https:  ",
+      "script-src 'nonce-foo' 'strict-dynamic' 'unsafe-inline' 'report-sample' https:" },
+    { "default-src 'sha256-siVR8' 'strict-dynamic' 'unsafe-inline' https:  ",
+      "default-src 'sha256-siVR8' 'unsafe-inline' https:" },
+    { "worker-src https://example.com",
+      "worker-src https://example.com" },
+    { "worker-src http://worker.com; frame-src http://frame.com; child-src http://child.com",
+      "worker-src http://worker.com; frame-src http://frame.com; child-src http://child.com" },
+    { "navigate-to http://example.com",
+      "navigate-to http://example.com"},
+    { "navigate-to 'unsafe-allow-redirects' http://example.com",
+      "navigate-to 'unsafe-allow-redirects' http://example.com"},
+    { "script-src 'unsafe-allow-redirects' http://example.com",
+      "script-src http://example.com"},
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ============================= TestKeywords ========================
+
+TEST(CSPParser, Keywords)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "script-src 'self'",
+      "script-src 'self'" },
+    { "script-src 'unsafe-inline'",
+      "script-src 'unsafe-inline'" },
+    { "script-src 'unsafe-eval'",
+      "script-src 'unsafe-eval'" },
+    { "script-src 'unsafe-inline' 'unsafe-eval'",
+      "script-src 'unsafe-inline' 'unsafe-eval'" },
+    { "script-src 'none'",
+      "script-src 'none'" },
+    { "script-src 'wasm-unsafe-eval'",
+      "script-src 'wasm-unsafe-eval'" },
+    { "img-src 'none'; script-src 'unsafe-eval' 'unsafe-inline'; default-src 'self'",
+      "img-src 'none'; script-src 'unsafe-eval' 'unsafe-inline'; default-src 'self'" },
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// =================== TestIgnoreUpperLowerCasePolicies ==============
+
+TEST(CSPParser, IgnoreUpperLowerCasePolicies)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "script-src 'SELF'",
+      "script-src 'self'" },
+    { "sCriPt-src 'Unsafe-Inline'",
+      "script-src 'unsafe-inline'" },
+    { "SCRIPT-src 'unsafe-eval'",
+      "script-src 'unsafe-eval'" },
+    { "default-SRC 'unsafe-inline' 'unsafe-eval'",
+      "default-src 'unsafe-inline' 'unsafe-eval'" },
+    { "script-src 'NoNe'",
+      "script-src 'none'" },
+    { "img-sRc 'noNe'; scrIpt-src 'unsafe-EVAL' 'UNSAFE-inline'; deFAULT-src 'Self'",
+      "img-src 'none'; script-src 'unsafe-eval' 'unsafe-inline'; default-src 'self'" },
+    { "default-src HTTP://www.example.com",
+      "default-src http://www.example.com" },
+    { "default-src HTTP://WWW.EXAMPLE.COM",
+      "default-src http://www.example.com" },
+    { "default-src HTTPS://*.example.COM",
+      "default-src https://*.example.com" },
+    { "script-src 'none' test.com;",
+      "script-src http://test.com" },
+    { "script-src 'NoNCE-correctscriptnonce'",
+      "script-src 'nonce-correctscriptnonce'" },
+    { "script-src 'NoncE-NONCENEEDSTOBEUPPERCASE'",
+      "script-src 'nonce-NONCENEEDSTOBEUPPERCASE'" },
+    { "script-src 'SHA256-siVR8vAcqP06h2ppeNwqgjr0yZ6yned4X2VF84j4GmI='",
+      "script-src 'sha256-siVR8vAcqP06h2ppeNwqgjr0yZ6yned4X2VF84j4GmI='" },
+    { "upgrade-INSECURE-requests",
+      "upgrade-insecure-requests" },
+    { "sanDBox alloW-foRMs",
+      "sandbox allow-forms"},
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ========================= TestPaths ===============================
+
+TEST(CSPParser, Paths)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "script-src http://www.example.com",
+      "script-src http://www.example.com" },
+    { "script-src http://www.example.com/",
+      "script-src http://www.example.com/" },
+    { "script-src http://www.example.com/path-1",
+      "script-src http://www.example.com/path-1" },
+    { "script-src http://www.example.com/path-1/",
+      "script-src http://www.example.com/path-1/" },
+    { "script-src http://www.example.com/path-1/path_2",
+      "script-src http://www.example.com/path-1/path_2" },
+    { "script-src http://www.example.com/path-1/path_2/",
+      "script-src http://www.example.com/path-1/path_2/" },
+    { "script-src http://www.example.com/path-1/path_2/file.js",
+      "script-src http://www.example.com/path-1/path_2/file.js" },
+    { "script-src http://www.example.com/path-1/path_2/file_1.js",
+      "script-src http://www.example.com/path-1/path_2/file_1.js" },
+    { "script-src http://www.example.com/path-1/path_2/file-2.js",
+      "script-src http://www.example.com/path-1/path_2/file-2.js" },
+    { "script-src http://www.example.com/path-1/path_2/f.js",
+      "script-src http://www.example.com/path-1/path_2/f.js" },
+    { "script-src http://www.example.com:88",
+      "script-src http://www.example.com:88" },
+    { "script-src http://www.example.com:88/",
+      "script-src http://www.example.com:88/" },
+    { "script-src http://www.example.com:88/path-1",
+      "script-src http://www.example.com:88/path-1" },
+    { "script-src http://www.example.com:88/path-1/",
+      "script-src http://www.example.com:88/path-1/" },
+    { "script-src http://www.example.com:88/path-1/path_2",
+      "script-src http://www.example.com:88/path-1/path_2" },
+    { "script-src http://www.example.com:88/path-1/path_2/",
+      "script-src http://www.example.com:88/path-1/path_2/" },
+    { "script-src http://www.example.com:88/path-1/path_2/file.js",
+      "script-src http://www.example.com:88/path-1/path_2/file.js" },
+    { "script-src http://www.example.com:*",
+      "script-src http://www.example.com:*" },
+    { "script-src http://www.example.com:*/",
+      "script-src http://www.example.com:*/" },
+    { "script-src http://www.example.com:*/path-1",
+      "script-src http://www.example.com:*/path-1" },
+    { "script-src http://www.example.com:*/path-1/",
+      "script-src http://www.example.com:*/path-1/" },
+    { "script-src http://www.example.com:*/path-1/path_2",
+      "script-src http://www.example.com:*/path-1/path_2" },
+    { "script-src http://www.example.com:*/path-1/path_2/",
+      "script-src http://www.example.com:*/path-1/path_2/" },
+    { "script-src http://www.example.com:*/path-1/path_2/file.js",
+      "script-src http://www.example.com:*/path-1/path_2/file.js" },
+    { "script-src http://www.example.com#foo",
+      "script-src http://www.example.com" },
+    { "script-src http://www.example.com?foo=bar",
+      "script-src http://www.example.com" },
+    { "script-src http://www.example.com:8888#foo",
+      "script-src http://www.example.com:8888" },
+    { "script-src http://www.example.com:8888?foo",
+      "script-src http://www.example.com:8888" },
+    { "script-src http://www.example.com/#foo",
+      "script-src http://www.example.com/" },
+    { "script-src http://www.example.com/?foo",
+      "script-src http://www.example.com/" },
+    { "script-src http://www.example.com/path-1/file.js#foo",
+      "script-src http://www.example.com/path-1/file.js" },
+    { "script-src http://www.example.com/path-1/file.js?foo",
+      "script-src http://www.example.com/path-1/file.js" },
+    { "script-src http://www.example.com/path-1/file.js?foo#bar",
+      "script-src http://www.example.com/path-1/file.js" },
+    { "report-uri http://www.example.com/",
+      "report-uri http://www.example.com/" },
+    { "report-uri http://www.example.com:8888/asdf",
+      "report-uri http://www.example.com:8888/asdf" },
+    { "report-uri http://www.example.com:8888/path_1/path_2",
+      "report-uri http://www.example.com:8888/path_1/path_2" },
+    { "report-uri http://www.example.com:8888/path_1/path_2/report.sjs&301",
+      "report-uri http://www.example.com:8888/path_1/path_2/report.sjs&301" },
+    { "report-uri /examplepath",
+      "report-uri http://www.selfuri.com/examplepath" },
+    { "connect-src http://www.example.com/foo%3Bsessionid=12%2C34",
+      "connect-src http://www.example.com/foo;sessionid=12,34" },
+    { "connect-src http://www.example.com/foo%3bsessionid=12%2c34",
+      "connect-src http://www.example.com/foo;sessionid=12,34" },
+    { "connect-src http://test.com/pathIncludingAz19-._~!$&'()*+=:@",
+      "connect-src http://test.com/pathIncludingAz19-._~!$&'()*+=:@" },
+    { "script-src http://www.example.com:88/.js",
+      "script-src http://www.example.com:88/.js" },
+    { "script-src https://foo.com/_abc/abc_/_/_a_b_c_",
+      "script-src https://foo.com/_abc/abc_/_/_a_b_c_" }
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ======================== TestSimplePolicies =======================
+
+TEST(CSPParser, SimplePolicies)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "frame-src intent:",
+      "frame-src intent:" },
+    { "frame-src intent://host.name",
+      "frame-src intent://host.name" },
+    { "frame-src intent://my.host.link/",
+      "frame-src intent://my.host.link/" },
+    { "default-src *",
+      "default-src *" },
+    { "default-src https:",
+      "default-src https:" },
+    { "default-src https://*",
+      "default-src https://*" },
+    { "default-src *:*",
+      "default-src http://*:*" },
+    { "default-src *:80",
+      "default-src http://*:80" },
+    { "default-src http://*:80",
+      "default-src http://*:80" },
+    { "default-src javascript:",
+      "default-src javascript:" },
+    { "default-src data:",
+      "default-src data:" },
+    { "script-src 'unsafe-eval' 'unsafe-inline' http://www.example.com",
+      "script-src 'unsafe-eval' 'unsafe-inline' http://www.example.com" },
+    { "object-src 'self'",
+      "object-src 'self'" },
+    { "style-src http://www.example.com 'self'",
+      "style-src http://www.example.com 'self'" },
+    { "media-src http://www.example.com http://www.test.com",
+      "media-src http://www.example.com http://www.test.com" },
+    { "connect-src http://www.test.com example.com *.other.com;",
+      "connect-src http://www.test.com http://example.com http://*.other.com"},
+    { "connect-src example.com *.other.com",
+      "connect-src http://example.com http://*.other.com"},
+    { "style-src *.other.com example.com",
+      "style-src http://*.other.com http://example.com"},
+    { "default-src 'self'; img-src *;",
+      "default-src 'self'; img-src *" },
+    { "object-src media1.example.com media2.example.com *.cdn.example.com;",
+      "object-src http://media1.example.com http://media2.example.com http://*.cdn.example.com" },
+    { "script-src trustedscripts.example.com",
+      "script-src http://trustedscripts.example.com" },
+    { "script-src 'self' ; default-src trustedscripts.example.com",
+      "script-src 'self'; default-src http://trustedscripts.example.com" },
+    { "default-src 'none'; report-uri http://localhost:49938/test",
+      "default-src 'none'; report-uri http://localhost:49938/test" },
+    { "   ;   default-src abc",
+      "default-src http://abc" },
+    { " ; ; ; ;     default-src            abc    ; ; ; ;",
+      "default-src http://abc" },
+    { "script-src 'none' 'none' 'none';",
+      "script-src 'none'" },
+    { "script-src http://www.example.com/path-1//",
+      "script-src http://www.example.com/path-1//" },
+    { "script-src http://www.example.com/path-1//path_2",
+      "script-src http://www.example.com/path-1//path_2" },
+    { "default-src 127.0.0.1",
+      "default-src http://127.0.0.1" },
+    { "default-src 127.0.0.1:*",
+      "default-src http://127.0.0.1:*" },
+    { "default-src -; ",
+      "default-src http://-" },
+    { "script-src 1",
+      "script-src http://1" },
+    { "upgrade-insecure-requests",
+      "upgrade-insecure-requests" },
+    { "upgrade-insecure-requests https:",
+      "upgrade-insecure-requests" },
+    { "sandbox allow-scripts allow-forms  ",
+      "sandbox allow-scripts allow-forms" },
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// =================== TestPoliciesWithInvalidSrc ====================
+
+TEST(CSPParser, PoliciesWithInvalidSrc)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "script-src 'self'; SCRIPT-SRC http://www.example.com",
+      "script-src 'self'" },
+    { "script-src 'none' test.com; script-src example.com",
+      "script-src http://test.com" },
+    { "default-src **",
+      "default-src 'none'" },
+    { "default-src 'self",
+      "default-src 'none'" },
+    { "default-src 'unsafe-inlin' ",
+      "default-src 'none'" },
+    { "default-src */",
+      "default-src 'none'" },
+    { "default-src",
+      "default-src 'none'" },
+    { "default-src 'unsafe-inlin' ",
+      "default-src 'none'" },
+    { "default-src :88",
+      "default-src 'none'" },
+    { "script-src abc::::::88",
+      "script-src 'none'" },
+    { "script-src *.*:*",
+      "script-src 'none'" },
+    { "img-src *::88",
+      "img-src 'none'" },
+    { "object-src http://localhost:",
+      "object-src 'none'" },
+    { "script-src test..com",
+      "script-src 'none'" },
+    { "script-src sub1.sub2.example+",
+      "script-src 'none'" },
+    { "script-src http://www.example.com//",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:88path-1/",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:88//",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:88//path-1",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:88//path-1",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:88.js",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:*.js",
+      "script-src 'none'" },
+    { "script-src http://www.example.com:*.",
+      "script-src 'none'" },
+    { "script-src 'nonce-{invalid}'",
+      "script-src 'none'" },
+    { "script-src 'sha256-{invalid}'",
+      "script-src 'none'" },
+    { "script-src 'nonce-in$valid'",
+      "script-src 'none'" },
+    { "script-src 'sha256-in$valid'",
+      "script-src 'none'" },
+    { "script-src 'nonce-invalid==='",
+      "script-src 'none'" },
+    { "script-src 'sha256-invalid==='",
+      "script-src 'none'" },
+    { "script-src 'nonce-==='",
+      "script-src 'none'" },
+    { "script-src 'sha256-==='",
+      "script-src 'none'" },
+    { "script-src 'nonce-=='",
+      "script-src 'none'" },
+    { "script-src 'sha256-=='",
+      "script-src 'none'" },
+    { "script-src 'nonce-='",
+      "script-src 'none'" },
+    { "script-src 'sha256-='",
+      "script-src 'none'" },
+    { "script-src 'nonce-'",
+      "script-src 'none'" },
+    { "script-src 'sha256-'",
+      "script-src 'none'" },
+    { "connect-src http://www.example.com/foo%zz;",
+      "connect-src 'none'" },
+    { "script-src https://foo.com/%$",
+      "script-src 'none'" },
+    { "sandbox    foo",
+      "sandbox"},
+      // clang-format on
+  };
+
+  // amount of tests - 1, because the latest should be ignored.
+  uint32_t policyCount = (sizeof(policies) / sizeof(PolicyTest)) - 1;
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ============================= TestBadPolicies =======================
+
+TEST(CSPParser, BadPolicies)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "script-sr 'self", "" },
+    { "", "" },
+    { "; ; ; ; ; ; ;", "" },
+    { "defaut-src asdf", "" },
+    { "default-src: aaa", "" },
+    { "asdf http://test.com", ""},
+    { "report-uri", ""},
+    { "report-uri http://:foo", ""},
+    { "require-sri-for", ""},
+    { "require-sri-for style", ""},
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 0));
+}
+
+// ======================= TestGoodGeneratedPolicies =================
+
+TEST(CSPParser, GoodGeneratedPolicies)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "default-src 'self'; img-src *",
+      "default-src 'self'; img-src *" },
+    { "report-uri /policy",
+      "report-uri http://www.selfuri.com/policy"},
+    { "img-src *",
+      "img-src *" },
+    { "media-src foo.bar",
+      "media-src http://foo.bar" },
+    { "frame-src *.bar",
+      "frame-src http://*.bar" },
+    { "font-src com",
+      "font-src http://com" },
+    { "connect-src f00b4r.com",
+      "connect-src http://f00b4r.com" },
+    { "script-src *.a.b.c",
+      "script-src http://*.a.b.c" },
+    { "object-src *.b.c",
+      "object-src http://*.b.c" },
+    { "style-src a.b.c",
+      "style-src http://a.b.c" },
+    { "img-src a.com",
+      "img-src http://a.com" },
+    { "media-src http://abc.com",
+      "media-src http://abc.com" },
+    { "frame-src a2-c.com",
+      "frame-src http://a2-c.com" },
+    { "font-src https://a.com",
+      "font-src https://a.com" },
+    { "connect-src *.a.com",
+      "connect-src http://*.a.com" },
+    { "default-src a.com:23",
+      "default-src http://a.com:23" },
+    { "script-src https://a.com:200",
+      "script-src https://a.com:200" },
+    { "object-src data:",
+      "object-src data:" },
+    { "style-src javascript:",
+      "style-src javascript:" },
+    { "frame-src https://foobar.com:443",
+      "frame-src https://foobar.com:443" },
+    { "font-src https://a.com:443",
+      "font-src https://a.com:443" },
+    { "connect-src http://a.com:80",
+      "connect-src http://a.com:80" },
+    { "default-src http://foobar.com",
+      "default-src http://foobar.com" },
+    { "script-src https://foobar.com",
+      "script-src https://foobar.com" },
+    { "style-src 'none'",
+      "style-src 'none'" },
+    { "img-src foo.bar:21 https://ras.bar",
+      "img-src http://foo.bar:21 https://ras.bar" },
+    { "media-src http://foo.bar:21 https://ras.bar:443",
+      "media-src http://foo.bar:21 https://ras.bar:443" },
+    { "frame-src http://self.com:80",
+      "frame-src http://self.com:80" },
+    { "font-src http://self.com",
+      "font-src http://self.com" },
+    { "connect-src https://foo.com http://bar.com:88",
+      "connect-src https://foo.com http://bar.com:88" },
+    { "default-src * https://bar.com 'none'",
+      "default-src * https://bar.com" },
+    { "script-src *.foo.com",
+      "script-src http://*.foo.com" },
+    { "object-src http://b.com",
+      "object-src http://b.com" },
+    { "style-src http://bar.com:88",
+      "style-src http://bar.com:88" },
+    { "img-src https://bar.com:88",
+      "img-src https://bar.com:88" },
+    { "media-src http://bar.com:443",
+      "media-src http://bar.com:443" },
+    { "frame-src https://foo.com:88",
+      "frame-src https://foo.com:88" },
+    { "font-src http://foo.com",
+      "font-src http://foo.com" },
+    { "connect-src http://x.com:23",
+      "connect-src http://x.com:23" },
+    { "default-src http://barbaz.com",
+      "default-src http://barbaz.com" },
+    { "script-src http://somerandom.foo.com",
+      "script-src http://somerandom.foo.com" },
+    { "default-src *",
+      "default-src *" },
+    { "style-src http://bar.com:22",
+      "style-src http://bar.com:22" },
+    { "img-src https://foo.com:443",
+      "img-src https://foo.com:443" },
+    { "script-src https://foo.com; ",
+      "script-src https://foo.com" },
+    { "img-src bar.com:*",
+      "img-src http://bar.com:*" },
+    { "font-src https://foo.com:400",
+      "font-src https://foo.com:400" },
+    { "connect-src http://bar.com:400",
+      "connect-src http://bar.com:400" },
+    { "default-src http://evil.com",
+      "default-src http://evil.com" },
+    { "script-src https://evil.com:100",
+      "script-src https://evil.com:100" },
+    { "default-src bar.com; script-src https://foo.com",
+      "default-src http://bar.com; script-src https://foo.com" },
+    { "default-src 'self'; script-src 'self' https://*:*",
+      "default-src 'self'; script-src 'self' https://*:*" },
+    { "img-src http://self.com:34",
+      "img-src http://self.com:34" },
+    { "media-src http://subd.self.com:34",
+      "media-src http://subd.self.com:34" },
+    { "default-src 'none'",
+      "default-src 'none'" },
+    { "connect-src http://self",
+      "connect-src http://self" },
+    { "default-src http://foo",
+      "default-src http://foo" },
+    { "script-src http://foo:80",
+      "script-src http://foo:80" },
+    { "object-src http://bar",
+      "object-src http://bar" },
+    { "style-src http://three:80",
+      "style-src http://three:80" },
+    { "img-src https://foo:400",
+      "img-src https://foo:400" },
+    { "media-src https://self:34",
+      "media-src https://self:34" },
+    { "frame-src https://bar",
+      "frame-src https://bar" },
+    { "font-src http://three:81",
+      "font-src http://three:81" },
+    { "connect-src https://three:81",
+      "connect-src https://three:81" },
+    { "script-src http://self.com:80/foo",
+      "script-src http://self.com:80/foo" },
+    { "object-src http://self.com/foo",
+      "object-src http://self.com/foo" },
+    { "report-uri /report.py",
+      "report-uri http://www.selfuri.com/report.py"},
+    { "img-src http://foo.org:34/report.py",
+      "img-src http://foo.org:34/report.py" },
+    { "media-src foo/bar/report.py",
+      "media-src http://foo/bar/report.py" },
+    { "report-uri /",
+      "report-uri http://www.selfuri.com/"},
+    { "font-src https://self.com/report.py",
+      "font-src https://self.com/report.py" },
+    { "connect-src https://foo.com/report.py",
+      "connect-src https://foo.com/report.py" },
+    { "default-src *; report-uri  http://www.reporturi.com/",
+      "default-src *; report-uri http://www.reporturi.com/" },
+    { "default-src http://first.com",
+      "default-src http://first.com" },
+    { "script-src http://second.com",
+      "script-src http://second.com" },
+    { "object-src http://third.com",
+      "object-src http://third.com" },
+    { "style-src https://foobar.com:4443",
+      "style-src https://foobar.com:4443" },
+    { "img-src http://foobar.com:4443",
+      "img-src http://foobar.com:4443" },
+    { "media-src bar.com",
+      "media-src http://bar.com" },
+    { "frame-src http://bar.com",
+      "frame-src http://bar.com" },
+    { "font-src http://self.com/",
+      "font-src http://self.com/" },
+    { "script-src 'self'",
+      "script-src 'self'" },
+    { "default-src http://self.com/foo.png",
+      "default-src http://self.com/foo.png" },
+    { "script-src http://self.com/foo.js",
+      "script-src http://self.com/foo.js" },
+    { "object-src http://bar.com/foo.js",
+      "object-src http://bar.com/foo.js" },
+    { "style-src http://FOO.COM",
+      "style-src http://foo.com" },
+    { "img-src HTTP",
+      "img-src http://http" },
+    { "media-src http",
+      "media-src http://http" },
+    { "frame-src 'SELF'",
+      "frame-src 'self'" },
+    { "DEFAULT-src 'self';",
+      "default-src 'self'" },
+    { "default-src 'self' http://FOO.COM",
+      "default-src 'self' http://foo.com" },
+    { "default-src 'self' HTTP://foo.com",
+      "default-src 'self' http://foo.com" },
+    { "default-src 'NONE'",
+      "default-src 'none'" },
+    { "script-src policy-uri ",
+      "script-src http://policy-uri" },
+    { "img-src 'self'; ",
+      "img-src 'self'" },
+    { "frame-ancestors foo-bar.com",
+      "frame-ancestors http://foo-bar.com" },
+    { "frame-ancestors http://a.com",
+      "frame-ancestors http://a.com" },
+    { "frame-ancestors 'self'",
+      "frame-ancestors 'self'" },
+    { "frame-ancestors http://self.com:88",
+      "frame-ancestors http://self.com:88" },
+    { "frame-ancestors http://a.b.c.d.e.f.g.h.i.j.k.l.x.com",
+      "frame-ancestors http://a.b.c.d.e.f.g.h.i.j.k.l.x.com" },
+    { "frame-ancestors https://self.com:34",
+      "frame-ancestors https://self.com:34" },
+    { "frame-ancestors http://sampleuser:samplepass@example.com",
+      "frame-ancestors 'none'" },
+    { "default-src 'none'; frame-ancestors 'self'",
+      "default-src 'none'; frame-ancestors 'self'" },
+    { "frame-ancestors http://self:80",
+      "frame-ancestors http://self:80" },
+    { "frame-ancestors http://self.com/bar",
+      "frame-ancestors http://self.com/bar" },
+    { "default-src 'self'; frame-ancestors 'self'",
+      "default-src 'self'; frame-ancestors 'self'" },
+    { "frame-ancestors http://bar.com/foo.png",
+      "frame-ancestors http://bar.com/foo.png" },
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ==================== TestBadGeneratedPolicies ====================
+
+TEST(CSPParser, BadGeneratedPolicies)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "foo.*.bar", ""},
+    { "foo!bar.com", ""},
+    { "x.*.a.com", ""},
+    { "a#2-c.com", ""},
+    { "http://foo.com:bar.com:23", ""},
+    { "f!oo.bar", ""},
+    { "ht!ps://f-oo.bar", ""},
+    { "https://f-oo.bar:3f", ""},
+    { "**", ""},
+    { "*a", ""},
+    { "http://username:password@self.com/foo", ""},
+    { "http://other:pass1@self.com/foo", ""},
+    { "http://user1:pass1@self.com/foo", ""},
+    { "http://username:password@self.com/bar", ""},
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 0));
+}
+
+// ============ TestGoodGeneratedPoliciesForPathHandling =============
+
+TEST(CSPParser, GoodGeneratedPoliciesForPathHandling)
+{
+  // Once bug 808292 (Implement path-level host-source matching to CSP)
+  // lands we have to update the expected output to include the parsed path
+
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "img-src http://test1.example.com",
+      "img-src http://test1.example.com" },
+    { "img-src http://test1.example.com/",
+      "img-src http://test1.example.com/" },
+    { "img-src http://test1.example.com/path-1",
+      "img-src http://test1.example.com/path-1" },
+    { "img-src http://test1.example.com/path-1/",
+      "img-src http://test1.example.com/path-1/" },
+    { "img-src http://test1.example.com/path-1/path_2/",
+      "img-src http://test1.example.com/path-1/path_2/" },
+    { "img-src http://test1.example.com/path-1/path_2/file.js",
+      "img-src http://test1.example.com/path-1/path_2/file.js" },
+    { "img-src http://test1.example.com/path-1/path_2/file_1.js",
+      "img-src http://test1.example.com/path-1/path_2/file_1.js" },
+    { "img-src http://test1.example.com/path-1/path_2/file-2.js",
+      "img-src http://test1.example.com/path-1/path_2/file-2.js" },
+    { "img-src http://test1.example.com/path-1/path_2/f.js",
+      "img-src http://test1.example.com/path-1/path_2/f.js" },
+    { "img-src http://test1.example.com/path-1/path_2/f.oo.js",
+      "img-src http://test1.example.com/path-1/path_2/f.oo.js" },
+    { "img-src test1.example.com",
+      "img-src http://test1.example.com" },
+    { "img-src test1.example.com/",
+      "img-src http://test1.example.com/" },
+    { "img-src test1.example.com/path-1",
+      "img-src http://test1.example.com/path-1" },
+    { "img-src test1.example.com/path-1/",
+      "img-src http://test1.example.com/path-1/" },
+    { "img-src test1.example.com/path-1/path_2/",
+      "img-src http://test1.example.com/path-1/path_2/" },
+    { "img-src test1.example.com/path-1/path_2/file.js",
+      "img-src http://test1.example.com/path-1/path_2/file.js" },
+    { "img-src test1.example.com/path-1/path_2/file_1.js",
+      "img-src http://test1.example.com/path-1/path_2/file_1.js" },
+    { "img-src test1.example.com/path-1/path_2/file-2.js",
+      "img-src http://test1.example.com/path-1/path_2/file-2.js" },
+    { "img-src test1.example.com/path-1/path_2/f.js",
+      "img-src http://test1.example.com/path-1/path_2/f.js" },
+    { "img-src test1.example.com/path-1/path_2/f.oo.js",
+      "img-src http://test1.example.com/path-1/path_2/f.oo.js" },
+    { "img-src *.example.com",
+      "img-src http://*.example.com" },
+    { "img-src *.example.com/",
+      "img-src http://*.example.com/" },
+    { "img-src *.example.com/path-1",
+      "img-src http://*.example.com/path-1" },
+    { "img-src *.example.com/path-1/",
+      "img-src http://*.example.com/path-1/" },
+    { "img-src *.example.com/path-1/path_2/",
+      "img-src http://*.example.com/path-1/path_2/" },
+    { "img-src *.example.com/path-1/path_2/file.js",
+      "img-src http://*.example.com/path-1/path_2/file.js" },
+    { "img-src *.example.com/path-1/path_2/file_1.js",
+      "img-src http://*.example.com/path-1/path_2/file_1.js" },
+    { "img-src *.example.com/path-1/path_2/file-2.js",
+      "img-src http://*.example.com/path-1/path_2/file-2.js" },
+    { "img-src *.example.com/path-1/path_2/f.js",
+      "img-src http://*.example.com/path-1/path_2/f.js" },
+    { "img-src *.example.com/path-1/path_2/f.oo.js",
+      "img-src http://*.example.com/path-1/path_2/f.oo.js" },
+    { "img-src test1.example.com:80",
+      "img-src http://test1.example.com:80" },
+    { "img-src test1.example.com:80/",
+      "img-src http://test1.example.com:80/" },
+    { "img-src test1.example.com:80/path-1",
+      "img-src http://test1.example.com:80/path-1" },
+    { "img-src test1.example.com:80/path-1/",
+      "img-src http://test1.example.com:80/path-1/" },
+    { "img-src test1.example.com:80/path-1/path_2",
+      "img-src http://test1.example.com:80/path-1/path_2" },
+    { "img-src test1.example.com:80/path-1/path_2/",
+      "img-src http://test1.example.com:80/path-1/path_2/" },
+    { "img-src test1.example.com:80/path-1/path_2/file.js",
+      "img-src http://test1.example.com:80/path-1/path_2/file.js" },
+    { "img-src test1.example.com:80/path-1/path_2/f.ile.js",
+      "img-src http://test1.example.com:80/path-1/path_2/f.ile.js" },
+    { "img-src test1.example.com:*",
+      "img-src http://test1.example.com:*" },
+    { "img-src test1.example.com:*/",
+      "img-src http://test1.example.com:*/" },
+    { "img-src test1.example.com:*/path-1",
+      "img-src http://test1.example.com:*/path-1" },
+    { "img-src test1.example.com:*/path-1/",
+      "img-src http://test1.example.com:*/path-1/" },
+    { "img-src test1.example.com:*/path-1/path_2",
+      "img-src http://test1.example.com:*/path-1/path_2" },
+    { "img-src test1.example.com:*/path-1/path_2/",
+      "img-src http://test1.example.com:*/path-1/path_2/" },
+    { "img-src test1.example.com:*/path-1/path_2/file.js",
+      "img-src http://test1.example.com:*/path-1/path_2/file.js" },
+    { "img-src test1.example.com:*/path-1/path_2/f.ile.js",
+      "img-src http://test1.example.com:*/path-1/path_2/f.ile.js" },
+    { "img-src http://test1.example.com/abc//",
+      "img-src http://test1.example.com/abc//" },
+    { "img-src https://test1.example.com/abc/def//",
+      "img-src https://test1.example.com/abc/def//" },
+    { "img-src https://test1.example.com/abc/def/ghi//",
+      "img-src https://test1.example.com/abc/def/ghi//" },
+    { "img-src http://test1.example.com:80/abc//",
+      "img-src http://test1.example.com:80/abc//" },
+    { "img-src https://test1.example.com:80/abc/def//",
+      "img-src https://test1.example.com:80/abc/def//" },
+    { "img-src https://test1.example.com:80/abc/def/ghi//",
+      "img-src https://test1.example.com:80/abc/def/ghi//" },
+    { "img-src https://test1.example.com/abc////////////def/",
+      "img-src https://test1.example.com/abc////////////def/" },
+    { "img-src https://test1.example.com/abc////////////",
+      "img-src https://test1.example.com/abc////////////" },
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ============== TestBadGeneratedPoliciesForPathHandling ============
+
+TEST(CSPParser, BadGeneratedPoliciesForPathHandling)
+{
+  static const PolicyTest policies[] = {
+      // clang-format off
+    { "img-src test1.example.com:88path-1/",
+      "img-src 'none'" },
+    { "img-src test1.example.com:80.js",
+      "img-src 'none'" },
+    { "img-src test1.example.com:*.js",
+      "img-src 'none'" },
+    { "img-src test1.example.com:*.",
+      "img-src 'none'" },
+    { "img-src http://test1.example.com//",
+      "img-src 'none'" },
+    { "img-src http://test1.example.com:80//",
+      "img-src 'none'" },
+    { "img-src http://test1.example.com:80abc",
+      "img-src 'none'" },
+      // clang-format on
+  };
+
+  uint32_t policyCount = sizeof(policies) / sizeof(PolicyTest);
+  ASSERT_NS_SUCCEEDED(runTestSuite(policies, policyCount, 1));
+}
+
+// ======================== TestFuzzyPolicies ========================
+
+// Use a policy, eliminate one character at a time,
+// and feed it as input to the parser.
+
+TEST(CSPParser, ShorteningPolicies)
+{
+  char pol[] =
+      "default-src http://www.sub1.sub2.example.com:88/path1/path2/ "
+      "'unsafe-inline' 'none'";
+  uint32_t len = static_cast<uint32_t>(sizeof(pol));
+
+  PolicyTest testPol[1];
+  memset(&testPol[0].policy, '\0', kMaxPolicyLength * sizeof(char));
+
+  while (--len) {
+    memset(&testPol[0].policy, '\0', kMaxPolicyLength * sizeof(char));
+    memcpy(&testPol[0].policy, &pol, len * sizeof(char));
+    ASSERT_TRUE(
+        NS_SUCCEEDED(runTestSuite(testPol, 1, kFuzzyExpectedPolicyCount)));
+  }
+}
+
+// ============================= TestFuzzyPolicies ===================
+
+// We generate kFuzzyRuns inputs by (pseudo) randomly picking from the 128
+// ASCII characters; feed them to the parser and verfy that the parser
+// handles the input gracefully.
+//
+// Please note, that by using srand(0) we get deterministic results!
+
+#if RUN_OFFLINE_TESTS
+
+TEST(CSPParser, FuzzyPolicies)
+{
+  // init srand with 0 so we get same results
+  srand(0);
+
+  PolicyTest testPol[1];
+  memset(&testPol[0].policy, '\0', kMaxPolicyLength);
+
+  for (uint32_t index = 0; index < kFuzzyRuns; index++) {
+    // randomly select the length of the next policy
+    uint32_t polLength = rand() % kMaxPolicyLength;
+    // reset memory of the policy string
+    memset(&testPol[0].policy, '\0', kMaxPolicyLength * sizeof(char));
+
+    for (uint32_t i = 0; i < polLength; i++) {
+      // fill the policy array with random ASCII chars
+      testPol[0].policy[i] = static_cast<char>(rand() % 128);
+    }
+    ASSERT_TRUE(
+        NS_SUCCEEDED(runTestSuite(testPol, 1, kFuzzyExpectedPolicyCount)));
+  }
+}
+
+#endif
+
+// ======================= TestFuzzyPoliciesIncDir ===================
+
+// In a similar fashion as in TestFuzzyPolicies, we again (pseudo) randomly
+// generate input for the parser, but this time also include a valid directive
+// followed by the random input.
+
+#if RUN_OFFLINE_TESTS
+
+TEST(CSPParser, FuzzyPoliciesIncDir)
+{
+  // init srand with 0 so we get same results
+  srand(0);
+
+  PolicyTest testPol[1];
+  memset(&testPol[0].policy, '\0', kMaxPolicyLength);
+
+  char defaultSrc[] = "default-src ";
+  int defaultSrcLen = sizeof(defaultSrc) - 1;
+  // copy default-src into the policy array
+  memcpy(&testPol[0].policy, &defaultSrc, (defaultSrcLen * sizeof(char)));
+
+  for (uint32_t index = 0; index < kFuzzyRuns; index++) {
+    // randomly select the length of the next policy
+    uint32_t polLength = rand() % (kMaxPolicyLength - defaultSrcLen);
+    // reset memory of the policy string, but leave default-src.
+    memset((&(testPol[0].policy) + (defaultSrcLen * sizeof(char))), '\0',
+           (kMaxPolicyLength - defaultSrcLen) * sizeof(char));
+
+    // do not start at index 0 so we do not overwrite 'default-src'
+    for (uint32_t i = defaultSrcLen; i < polLength; i++) {
+      // fill the policy array with random ASCII chars
+      testPol[0].policy[i] = static_cast<char>(rand() % 128);
+    }
+    ASSERT_TRUE(
+        NS_SUCCEEDED(runTestSuite(testPol, 1, kFuzzyExpectedPolicyCount)));
+  }
+}
+
+#endif
+
+// ====================== TestFuzzyPoliciesIncDirLimASCII ============
+
+// Same as TestFuzzyPoliciesIncDir() but using limited ASCII,
+// which represents more likely input.
+
+#if RUN_OFFLINE_TESTS
+
+TEST(CSPParser, FuzzyPoliciesIncDirLimASCII)
+{
+  char input[] =
+      "1234567890"
+      "abcdefghijklmnopqrstuvwxyz"
+      "ABCDEFGHIJKLMNOPQRSTUVWZYZ"
+      "!@#^&*()-+_=";
+
+  // init srand with 0 so we get same results
+  srand(0);
+
+  PolicyTest testPol[1];
+  memset(&testPol[0].policy, '\0', kMaxPolicyLength);
+
+  char defaultSrc[] = "default-src ";
+  int defaultSrcLen = sizeof(defaultSrc) - 1;
+  // copy default-src into the policy array
+  memcpy(&testPol[0].policy, &defaultSrc, (defaultSrcLen * sizeof(char)));
+
+  for (uint32_t index = 0; index < kFuzzyRuns; index++) {
+    // randomly select the length of the next policy
+    uint32_t polLength = rand() % (kMaxPolicyLength - defaultSrcLen);
+    // reset memory of the policy string, but leave default-src.
+    memset((&(testPol[0].policy) + (defaultSrcLen * sizeof(char))), '\0',
+           (kMaxPolicyLength - defaultSrcLen) * sizeof(char));
+
+    // do not start at index 0 so we do not overwrite 'default-src'
+    for (uint32_t i = defaultSrcLen; i < polLength; i++) {
+      // fill the policy array with chars from the pre-defined input
+      uint32_t inputIndex = rand() % sizeof(input);
+      testPol[0].policy[i] = input[inputIndex];
+    }
+    ASSERT_TRUE(
+        NS_SUCCEEDED(runTestSuite(testPol, 1, kFuzzyExpectedPolicyCount)));
+  }
+}
+#endif