diff --git a/check/CMakeLists.txt b/check/CMakeLists.txt
index 356cfd9f6f..a8255c74db 100644
--- a/check/CMakeLists.txt
+++ b/check/CMakeLists.txt
@@ -137,11 +137,11 @@ if (NOT FAST_BUILD OR ALL_TESTS)
                       RESOURCE_LOCK unittestbin)
 
   # create a binary running all the tests in the executable
-#   add_test(NAME unit_tests_all COMMAND unit_tests --success)
-#   set_tests_properties(unit_tests_all
-#                       PROPERTIES
-#                       DEPENDS unit-test-build)
-#   set_tests_properties(unit_tests_all PROPERTIES TIMEOUT 10000) 
+  add_test(NAME unit_tests_all COMMAND unit_tests --success)
+  set_tests_properties(unit_tests_all
+                      PROPERTIES
+                      DEPENDS unit-test-build)
+  set_tests_properties(unit_tests_all PROPERTIES TIMEOUT 10000) 
 
   # An individual test can be added with the command below but the approach
   # above with a single add_test for all the unit tests automatically detects all
@@ -263,7 +263,7 @@ if (NOT FAST_BUILD OR ALL_TESTS)
         "standgub\; 1.2576994998\;"
         )
   endif()
-  
+
   set(pdlpMacArmInstances
       "25fv47\; 5.50184589\;"
       "adlittle\; 2.254949631\;"
@@ -335,45 +335,44 @@ if (NOT FAST_BUILD OR ALL_TESTS)
   endforeach(instance)
   endmacro(add_instancetests)
 
-#   # add tests for success and fail instances
-#   if (APPLE AND (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm64"))
-#     add_instancetests(successMacArmInstances "Optimal")
-#   else()
-#     add_instancetests(successInstances "Optimal")
-#   endif()
-
-#   add_instancetests(failInstances "Fail")
-#   add_instancetests(infeasibleInstances "Infeasible")
-
-#   add_instancetests(unboundedInstances "Unbounded")
-
-
-#   foreach(instance ${mipInstances})
-#       list(GET instance 0 name)
-#       list(GET instance 1 optval)
-#       # specify the instance and the settings load command
-#       set(inst "${HIGHS_SOURCE_DIR}/check/instances/${name}.mps")
-
-#       foreach(setting ${settings})
-#           if (FAST_BUILD)
-#             add_test(NAME ${name}${setting} COMMAND $<TARGET_FILE:highs-bin> ${setting} 
-#                 --options_file ${CMAKE_BINARY_DIR}/testoptions.txt ${inst})
-#           else()
-#             add_test(NAME ${name}${setting} COMMAND $<TARGET_FILE:highs> ${setting}
-#                 --options_file ${CMAKE_BINARY_DIR}/testoptions.txt ${inst})
-#           endif()
-
-#           set_tests_properties (${name}${setting} PROPERTIES
-#                   DEPENDS unit_tests_all)
-
-#           set_tests_properties (${name}${setting} PROPERTIES
-#                   PASS_REGULAR_EXPRESSION
-#                   "Status            Optimal\n  Primal bound      ${optval}.*\n  Dual bound        ${optval}.*\n  Solution status   feasible\n                    ${optval}.* \\(objective\\)"
-#                   FAIL_REGULAR_EXPRESSION
-#                   "Solution status   infeasible")
-
-#       endforeach(setting)
-#   endforeach(instance)
+  # add tests for success and fail instances
+  if (APPLE AND (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm64"))
+    add_instancetests(successMacArmInstances "Optimal")
+  else()
+    add_instancetests(successInstances "Optimal")
+  endif()
+
+  add_instancetests(failInstances "Fail")
+  add_instancetests(infeasibleInstances "Infeasible")
+  add_instancetests(unboundedInstances "Unbounded")
+
+
+  foreach(instance ${mipInstances})
+      list(GET instance 0 name)
+      list(GET instance 1 optval)
+      # specify the instance and the settings load command
+      set(inst "${HIGHS_SOURCE_DIR}/check/instances/${name}.mps")
+
+      foreach(setting ${settings})
+          if (FAST_BUILD)
+            add_test(NAME ${name}${setting} COMMAND $<TARGET_FILE:highs-bin> ${setting} 
+                --options_file ${CMAKE_BINARY_DIR}/testoptions.txt ${inst})
+          else()
+            add_test(NAME ${name}${setting} COMMAND $<TARGET_FILE:highs> ${setting}
+                --options_file ${CMAKE_BINARY_DIR}/testoptions.txt ${inst})
+          endif()
+
+          set_tests_properties (${name}${setting} PROPERTIES
+                  DEPENDS unit_tests_all)
+
+          set_tests_properties (${name}${setting} PROPERTIES
+                  PASS_REGULAR_EXPRESSION
+                  "Status            Optimal\n  Primal bound      ${optval}.*\n  Dual bound        ${optval}.*\n  Solution status   feasible\n                    ${optval}.* \\(objective\\)"
+                  FAIL_REGULAR_EXPRESSION
+                  "Solution status   infeasible")
+
+      endforeach(setting)
+  endforeach(instance)
 
   if(FAST_BUILD AND NOT APPLE)
     foreach(instance_pdlp ${pdlpInstances})