diff --git a/clang/unittests/Format/QualifierFixerTest.cpp b/clang/unittests/Format/QualifierFixerTest.cpp
index 324366ca7f5e5..0aa755acfc821 100644
--- a/clang/unittests/Format/QualifierFixerTest.cpp
+++ b/clang/unittests/Format/QualifierFixerTest.cpp
@@ -1055,6 +1055,7 @@ TEST_F(QualifierFixerTest, IsQualifierType) {
 
   auto Tokens = annotate(
       "const static inline auto restrict int double long constexpr friend");
+  ASSERT_EQ(Tokens.size(), 11u) << Tokens;
 
   EXPECT_TRUE(LeftRightQualifierAlignmentFixer::isConfiguredQualifierOrType(
       Tokens[0], ConfiguredTokens));
@@ -1089,6 +1090,7 @@ TEST_F(QualifierFixerTest, IsQualifierType) {
   EXPECT_TRUE(LeftRightQualifierAlignmentFixer::isQualifierOrType(Tokens[9]));
 
   auto NotTokens = annotate("for while do Foo Bar ");
+  ASSERT_EQ(NotTokens.size(), 6u) << Tokens;
 
   EXPECT_FALSE(LeftRightQualifierAlignmentFixer::isConfiguredQualifierOrType(
       NotTokens[0], ConfiguredTokens));
@@ -1120,6 +1122,7 @@ TEST_F(QualifierFixerTest, IsQualifierType) {
 TEST_F(QualifierFixerTest, IsMacro) {
 
   auto Tokens = annotate("INT INTPR Foo int");
+  ASSERT_EQ(Tokens.size(), 5u) << Tokens;
 
   EXPECT_TRUE(LeftRightQualifierAlignmentFixer::isPossibleMacro(Tokens[0]));
   EXPECT_TRUE(LeftRightQualifierAlignmentFixer::isPossibleMacro(Tokens[1]));