diff --git a/security/pkix/test/gtest/pkixbuild_tests.cpp b/security/pkix/test/gtest/pkixbuild_tests.cpp
index bec270047e4b..86e2277ba406 100644
--- a/security/pkix/test/gtest/pkixbuild_tests.cpp
+++ b/security/pkix/test/gtest/pkixbuild_tests.cpp
@@ -185,7 +185,7 @@ private:
 
   virtual Result CheckPublicKey(Input subjectPublicKeyInfo)
   {
-    return ::mozilla::pkix::CheckPublicKey(subjectPublicKeyInfo);
+    return TestCheckPublicKey(subjectPublicKeyInfo);
   }
 
   // We hold references to CERTCertificates in the cert chain tail so that we
diff --git a/security/pkix/test/gtest/pkixcert_extension_tests.cpp b/security/pkix/test/gtest/pkixcert_extension_tests.cpp
index c346762d40b1..c1121472d89c 100644
--- a/security/pkix/test/gtest/pkixcert_extension_tests.cpp
+++ b/security/pkix/test/gtest/pkixcert_extension_tests.cpp
@@ -24,7 +24,6 @@
 
 #include "nssgtest.h"
 #include "pkix/pkix.h"
-#include "pkix/pkixnss.h"
 #include "pkixtestutil.h"
 
 using namespace mozilla::pkix;
@@ -96,8 +95,7 @@ private:
   virtual Result VerifySignedData(const SignedDataWithSignature& signedData,
                                   Input subjectPublicKeyInfo)
   {
-    return ::mozilla::pkix::VerifySignedData(signedData, subjectPublicKeyInfo,
-                                             nullptr);
+    return TestVerifySignedData(signedData, subjectPublicKeyInfo);
   }
 
   virtual Result DigestBuf(Input, /*out*/ uint8_t*, size_t)
@@ -108,7 +106,7 @@ private:
 
   virtual Result CheckPublicKey(Input subjectPublicKeyInfo)
   {
-    return ::mozilla::pkix::CheckPublicKey(subjectPublicKeyInfo);
+    return TestCheckPublicKey(subjectPublicKeyInfo);
   }
 };
 
diff --git a/security/pkix/test/gtest/pkixocsp_CreateEncodedOCSPRequest_tests.cpp b/security/pkix/test/gtest/pkixocsp_CreateEncodedOCSPRequest_tests.cpp
index 130aea46e8f2..3317beec0bdb 100644
--- a/security/pkix/test/gtest/pkixocsp_CreateEncodedOCSPRequest_tests.cpp
+++ b/security/pkix/test/gtest/pkixocsp_CreateEncodedOCSPRequest_tests.cpp
@@ -23,7 +23,6 @@
  */
 
 #include "nssgtest.h"
-#include "pkix/pkixnss.h"
 #include "pkix/pkix.h"
 #include "pkixder.h"
 #include "pkixtestutil.h"
@@ -70,7 +69,7 @@ private:
   virtual Result DigestBuf(Input item, /*out*/ uint8_t *digestBuf,
                            size_t digestBufLen)
   {
-    return ::mozilla::pkix::DigestBuf(item, digestBuf, digestBufLen);
+    return TestDigestBuf(item, digestBuf, digestBufLen);
   }
 
   virtual Result CheckPublicKey(Input subjectPublicKeyInfo)
diff --git a/security/pkix/test/gtest/pkixocsp_VerifyEncodedOCSPResponse.cpp b/security/pkix/test/gtest/pkixocsp_VerifyEncodedOCSPResponse.cpp
index e035556515d5..d23c1ef6d168 100644
--- a/security/pkix/test/gtest/pkixocsp_VerifyEncodedOCSPResponse.cpp
+++ b/security/pkix/test/gtest/pkixocsp_VerifyEncodedOCSPResponse.cpp
@@ -73,19 +73,18 @@ public:
   virtual Result VerifySignedData(const SignedDataWithSignature& signedData,
                                   Input subjectPublicKeyInfo)
   {
-    return ::mozilla::pkix::VerifySignedData(signedData, subjectPublicKeyInfo,
-                                             nullptr);
+    return TestVerifySignedData(signedData, subjectPublicKeyInfo);
   }
 
   virtual Result DigestBuf(Input item, /*out*/ uint8_t *digestBuf,
                            size_t digestBufLen)
   {
-    return ::mozilla::pkix::DigestBuf(item, digestBuf, digestBufLen);
+    return TestDigestBuf(item, digestBuf, digestBufLen);
   }
 
   virtual Result CheckPublicKey(Input subjectPublicKeyInfo)
   {
-    return ::mozilla::pkix::CheckPublicKey(subjectPublicKeyInfo);
+    return TestCheckPublicKey(subjectPublicKeyInfo);
   }
 
 private:
diff --git a/security/pkix/test/lib/pkixtestnss.cpp b/security/pkix/test/lib/pkixtestnss.cpp
index 752ecac0e9da..84235089d395 100644
--- a/security/pkix/test/lib/pkixtestnss.cpp
+++ b/security/pkix/test/lib/pkixtestnss.cpp
@@ -181,4 +181,23 @@ SHA1(const ByteString& toHash)
   return ByteString(digestBuf, sizeof(digestBuf));
 }
 
+Result
+TestCheckPublicKey(Input subjectPublicKeyInfo)
+{
+  return CheckPublicKey(subjectPublicKeyInfo);
+}
+
+Result
+TestVerifySignedData(const SignedDataWithSignature& signedData,
+                     Input subjectPublicKeyInfo)
+{
+  return VerifySignedData(signedData, subjectPublicKeyInfo, nullptr);
+}
+
+Result
+TestDigestBuf(Input item, /*out*/ uint8_t* digestBuf, size_t digestBufLen)
+{
+  return DigestBuf(item, digestBuf, digestBufLen);
+}
+
 } } } // namespace mozilla::pkix::test
diff --git a/security/pkix/test/lib/pkixtestutil.h b/security/pkix/test/lib/pkixtestutil.h
index 338f6ab9b408..dbe67072d8df 100644
--- a/security/pkix/test/lib/pkixtestutil.h
+++ b/security/pkix/test/lib/pkixtestutil.h
@@ -130,6 +130,12 @@ typedef ScopedPtr<TestKeyPair, DeleteTestKeyPair> ScopedTestKeyPair;
 
 ByteString SHA1(const ByteString& toHash);
 
+Result TestCheckPublicKey(Input subjectPublicKeyInfo);
+Result TestVerifySignedData(const SignedDataWithSignature& signedData,
+                            Input subjectPublicKeyInfo);
+Result TestDigestBuf(Input item, /*out*/ uint8_t* digestBuf,
+                     size_t digestBufLen);
+
 // Replace one substring in item with another of the same length, but only if
 // the substring was found exactly once. The "same length" restriction is
 // useful for avoiding invalidating lengths encoded within the item. The