diff --git a/Tests/CMakeLib/testArgumentParser.cxx b/Tests/CMakeLib/testArgumentParser.cxx
index 88b62e5416..880f3ee4e7 100644
--- a/Tests/CMakeLib/testArgumentParser.cxx
+++ b/Tests/CMakeLib/testArgumentParser.cxx
@@ -16,6 +16,8 @@
 #include "cmArgumentParser.h"
 #include "cmArgumentParserTypes.h"
 
+#include "testCommon.h"
+
 namespace {
 
 struct Result : public ArgumentParser::ParseResult
@@ -182,14 +184,6 @@ bool verifyResult(Result const& result,
   static std::vector<std::string> const unparsed = { "pos2", "bar", "ign1",
                                                      "ign2", "ign4" };
 
-#define ASSERT_TRUE(x)                                                        \
-  do {                                                                        \
-    if (!(x)) {                                                               \
-      std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
-      return false;                                                           \
-    }                                                                         \
-  } while (false)
-
   ASSERT_TRUE(!result);
 
   ASSERT_TRUE(result.Option1);
diff --git a/Tests/CMakeLib/testJSONHelpers.cxx b/Tests/CMakeLib/testJSONHelpers.cxx
index 50f0386567..68237ac6c1 100644
--- a/Tests/CMakeLib/testJSONHelpers.cxx
+++ b/Tests/CMakeLib/testJSONHelpers.cxx
@@ -1,5 +1,4 @@
 #include <functional>
-#include <iostream>
 #include <map>
 #include <string>
 #include <vector>
@@ -12,13 +11,7 @@
 #include "cmJSONHelpers.h"
 #include "cmJSONState.h"
 
-#define ASSERT_TRUE(x)                                                        \
-  do {                                                                        \
-    if (!(x)) {                                                               \
-      std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
-      return false;                                                           \
-    }                                                                         \
-  } while (false)
+#include "testCommon.h"
 
 namespace {
 struct ObjectStruct
diff --git a/Tests/CMakeLib/testOptional.cxx b/Tests/CMakeLib/testOptional.cxx
index 933ab70504..eba2dd564a 100644
--- a/Tests/CMakeLib/testOptional.cxx
+++ b/Tests/CMakeLib/testOptional.cxx
@@ -4,6 +4,8 @@
 #include <cm/optional>
 #include <cm/utility>
 
+#include "testCommon.h"
+
 class EventLogger;
 
 class Event
@@ -93,14 +95,6 @@ public:
   NoMoveAssignEventLogger& operator=(NoMoveAssignEventLogger&&) = delete;
 };
 
-#define ASSERT_TRUE(x)                                                        \
-  do {                                                                        \
-    if (!(x)) {                                                               \
-      std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
-      return false;                                                           \
-    }                                                                         \
-  } while (false)
-
 // Certain builds of GCC generate false -Wmaybe-uninitialized warnings when
 // doing a release build with the system version of std::optional. These
 // warnings do not manifest when using our own cm::optional implementation.
diff --git a/Tests/CMakeLib/testRange.cxx b/Tests/CMakeLib/testRange.cxx
index 36c1e18e47..64bc3d756c 100644
--- a/Tests/CMakeLib/testRange.cxx
+++ b/Tests/CMakeLib/testRange.cxx
@@ -1,19 +1,12 @@
 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
    file Copyright.txt or https://cmake.org/licensing for details.  */
 
-#include <iostream>
 #include <string>
 #include <vector>
 
 #include "cmRange.h"
 
-#define ASSERT_TRUE(x)                                                        \
-  do {                                                                        \
-    if (!(x)) {                                                               \
-      std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
-      return -1;                                                              \
-    }                                                                         \
-  } while (false)
+#include "testCommon.h"
 
 int testRange(int /*unused*/, char* /*unused*/[])
 {
diff --git a/Tests/CMakeLib/testString.cxx b/Tests/CMakeLib/testString.cxx
index 350926620c..d49f65f471 100644
--- a/Tests/CMakeLib/testString.cxx
+++ b/Tests/CMakeLib/testString.cxx
@@ -14,13 +14,7 @@
 
 #include "cmString.hxx"
 
-#define ASSERT_TRUE(x)                                                        \
-  do {                                                                        \
-    if (!(x)) {                                                               \
-      std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
-      return false;                                                           \
-    }                                                                         \
-  } while (false)
+#include "testCommon.h"
 
 static bool testConstructDefault()
 {