diff --git a/tests/Makefile.am b/tests/Makefile.am
index cf967db56a405dd67ebba3f1eb901bd43ce1caae..9cd6e9ab9e09935d39bf416dfbb65b83a874b382 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -100,6 +100,6 @@ EXTRA_DIST = testReading.sh makeInput.py testActivePair.sh \
 	     test27cells.sh test27cellsPerturbed.sh testParser.sh testPeriodicBC.sh \
 	     testPeriodicBCPerturbed.sh test125cells.sh test125cellsPerturbed.sh testParserInput.yaml \
 	     difffloat.py tolerance_125_normal.dat tolerance_125_perturbed.dat \
-             tolerance_27_normal.dat tolerance_27_perturbed.dat tolerance_27_perturbed_h.dat \
+             tolerance_27_normal.dat tolerance_27_perturbed.dat tolerance_27_perturbed_h.dat tolerance_27_perturbed_h2.dat \
 	     tolerance_testInteractions.dat tolerance_pair_active.dat \
 	     fft_params.yml tolerance_periodic_BC_normal.dat tolerance_periodic_BC_perturbed.dat
diff --git a/tests/test27cells.sh.in b/tests/test27cells.sh.in
index b327cb1bd89b0e5f6b7c9a6a5e643cb452f59f6b..059a7a208aa8e570ad5035fac16ffd201bf3dddd 100755
--- a/tests/test27cells.sh.in
+++ b/tests/test27cells.sh.in
@@ -28,6 +28,34 @@ do
     
 done
 
+# Test for particles with random smoothing lengths
+for v in {0..3}
+do
+    echo ""
+	
+    rm -f brute_force_27_standard.dat swift_dopair_27_standard.dat
+
+    echo "Running ./test27cells -n 6 -r 1 -d 0 -f standard -v $v -p 1.1"
+    ./test27cells -n 6 -r 1 -d 0 -f standard -v $v -p 1.1
+
+    if [ -e brute_force_27_standard.dat ]
+    then
+	if python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_perturbed_h.dat 6
+	then
+	    echo "Accuracy test passed"
+	else
+	    echo "Accuracy test failed"
+	    exit 1
+	fi
+    else
+	echo "Error Missing test output file"
+	exit 1
+    fi
+
+    echo "------------"
+    
+done
+
 # Test for particles with random smoothing lengths
 for v in {0..3}
 do
@@ -40,7 +68,7 @@ do
 
     if [ -e brute_force_27_standard.dat ]
     then
-	if python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_perturbed_h.dat 6
+	if python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_perturbed_h2.dat 6
 	then
 	    echo "Accuracy test passed"
 	else
diff --git a/tests/test27cellsPerturbed.sh.in b/tests/test27cellsPerturbed.sh.in
index 3680bff7a3999ad4aa87332234948c8fe4fba1cd..f875504e541588377ca6e40fe55681ebec3466f6 100755
--- a/tests/test27cellsPerturbed.sh.in
+++ b/tests/test27cellsPerturbed.sh.in
@@ -35,8 +35,8 @@ do
 
     rm -f brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat
 
-    echo "Running ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.3"
-    ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.3
+    echo "Running ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.1"
+    ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.1
 
     if [ -e brute_force_27_perturbed.dat ]
     then
@@ -56,4 +56,31 @@ do
 
 done
 
+# Test for particles with random smoothing lengths
+for v in {0..3}
+do
+    echo ""
+
+    rm -f brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat
+
+    echo "Running ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.3"
+    ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -p 1.3
+
+    if [ -e brute_force_27_perturbed.dat ]
+    then
+	if python @srcdir@/difffloat.py brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat @srcdir@/tolerance_27_perturbed_h2.dat 6
+	then
+	    echo "Accuracy test passed"
+	else
+	    echo "Accuracy test failed"
+	    exit 1
+	fi
+    else
+	echo "Error Missing test output file"
+	exit 1
+    fi
+
+    echo "------------"
+
+done
 exit $?
diff --git a/tests/tolerance_27_perturbed_h2.dat b/tests/tolerance_27_perturbed_h2.dat
new file mode 100644
index 0000000000000000000000000000000000000000..23f6a5006124f6233aebd111005760a5dcc5b6a3
--- /dev/null
+++ b/tests/tolerance_27_perturbed_h2.dat
@@ -0,0 +1,4 @@
+#   ID      pos_x      pos_y      pos_z        v_x        v_y        v_z           rho        rho_dh        wcount     wcount_dh         div_v       curl_vx       curl_vy       curl_vz
+    0	      1e-6       1e-6	      1e-6 	       1e-6 	    1e-6	     1e-6	         3e-6       1e-4	        5e-4       1.5e-2		         1.4e-5	       3e-6	         3e-6		       9e-6
+    0	      1e-6       1e-6	      1e-6 	       1e-6 	    1e-6	     1e-6	         1.5e-6	    1.57e-2	      1e-5       4.74e-3		       3.89e-4	     3e-3	         3e-3	 	       3e-3
+    0	      1e-6       1e-6	      1e-6 	       1e-6 	    1e-6	     1e-6	         1e-6	      1e-6	        1e-6       1e0		           1e-6	         4e-6	         4e-6		       4e-6