diff --git a/tutorials/combustion/reactingFoam/RAS/SandiaD_LTS/Allrun b/tutorials/combustion/reactingFoam/RAS/SandiaD_LTS/Allrun
index 7e70664f4e..cc16b197b6 100755
--- a/tutorials/combustion/reactingFoam/RAS/SandiaD_LTS/Allrun
+++ b/tutorials/combustion/reactingFoam/RAS/SandiaD_LTS/Allrun
@@ -14,21 +14,24 @@ runApplication chemkinToFoam \
 runApplication blockMesh
 runApplication setFields
 
-# Run the application without chemistry until 1500 to let the flow field develop
-foamDictionary -entry "startTime" -set "0" system/controlDict
-foamDictionary -entry "writeInterval" -set "1500" system/controlDict
-foamDictionary -entry "endTime" -set "1500" system/controlDict
-rm -rf constant/chemistryProperties > /dev/null 2>&1
-foamDictionary -entry "chemistry" -set "off" constant/chemistryProperties
+if ! isTest $@
+then
+    # Run the application without chemistry until 1500 to let the flow develop
+    foamDictionary -entry "startTime" -set "0" system/controlDict
+    foamDictionary -entry "writeInterval" -set "1500" system/controlDict
+    foamDictionary -entry "endTime" -set "1500" system/controlDict
+    rm -rf constant/chemistryProperties > /dev/null 2>&1
+    foamDictionary -entry "chemistry" -set "off" constant/chemistryProperties
 
-runApplication $application
+    runApplication $application
 
-# Run with chemistry until flame reach its full size
-foamDictionary -entry "startTime" -set "1500" system/controlDict
-foamDictionary -entry "writeInterval" -set "100" system/controlDict
-foamDictionary -entry "endTime" -set "5000" system/controlDict
-rm -rf constant/chemistryProperties > /dev/null 2>&1
-foamDictionary -entry "chemistry" -set "on" constant/chemistryProperties
+    # Run with chemistry until flame reach its full size
+    foamDictionary -entry "startTime" -set "1500" system/controlDict
+    foamDictionary -entry "writeInterval" -set "100" system/controlDict
+    foamDictionary -entry "endTime" -set "5000" system/controlDict
+    rm -rf constant/chemistryProperties > /dev/null 2>&1
+    foamDictionary -entry "chemistry" -set "on" constant/chemistryProperties
+fi
 
 runApplication -o $application