diff --git a/src/engine.c b/src/engine.c
index 295fdb824b8378033aa254091695c4a325d136b6..28b1d4b2e8b42cb865125f610f718b1d7130bd63 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -1669,10 +1669,10 @@ void engine_make_self_gravity_tasks(struct engine *e) {
 
     /* Make the ghosts implicit and add the dependencies */
     for (int n = 0; n < n_ghosts / 2; ++n) {
-      ghosts[2 * n + 0] = scheduler_addtask(sched, task_type_grav_ghost,
-                                            task_subtype_none, 0, 0, NULL, NULL);
-      ghosts[2 * n + 1] = scheduler_addtask(sched, task_type_grav_ghost,
-                                            task_subtype_none, 0, 0, NULL, NULL);
+      ghosts[2 * n + 0] = scheduler_addtask(
+          sched, task_type_grav_ghost, task_subtype_none, 0, 0, NULL, NULL);
+      ghosts[2 * n + 1] = scheduler_addtask(
+          sched, task_type_grav_ghost, task_subtype_none, 0, 0, NULL, NULL);
       ghosts[2 * n + 0]->implicit = 1;
       ghosts[2 * n + 1]->implicit = 1;
       scheduler_addunlock(sched, ghosts[2 * n + 0], s->grav_top_level);
@@ -3063,7 +3063,7 @@ void engine_print_stats(struct engine *e) {
                           e->policy & engine_policy_self_gravity);
 
   /* Be verbose about this */
-  if(e->nodeID == 0) message("Saving statistics at t=%e.", e->time);
+  if (e->nodeID == 0) message("Saving statistics at t=%e.", e->time);
 #else
   if (e->verbose) message("Saving statistics at t=%e.", e->time);
 #endif
diff --git a/src/runner_doiact_fft.c b/src/runner_doiact_fft.c
index 01ccb3446dda35135c01a13cd213c8b6368d79ec..a3e3f38fba920c0c58d600bb25feda88d4a3cf84 100644
--- a/src/runner_doiact_fft.c
+++ b/src/runner_doiact_fft.c
@@ -37,6 +37,8 @@
 #include "space.h"
 #include "timers.h"
 
+#ifdef HAVE_FFTW
+
 /**
  * @brief Returns 1D index of a 3D NxNxN array using row-major style.
  *
@@ -137,6 +139,8 @@ __attribute__((always_inline)) INLINE static void mesh_to_multipole_CIC(
   m->pot.F_000 += pot[row_major_id(i + 1, j + 1, k + 1, N)] * dx * dy * dz;
 }
 
+#endif
+
 /**
  * @brief Computes the potential on the top multipoles using a Fourier transform
  *
diff --git a/src/space.c b/src/space.c
index 9cb7e5f961005da7d73c53a910c9852e7bfcf174..b1612876b6339fb29648a87e9aec93a1d8f64664 100644
--- a/src/space.c
+++ b/src/space.c
@@ -2432,19 +2432,20 @@ void space_getcells(struct space *s, int nr_cells, struct cell **cells) {
 }
 
 void space_synchronize_particle_positions_mapper(void *map_data, int nr_gparts,
-						 void *extra_data) {
+                                                 void *extra_data) {
   /* Unpack the data */
   struct gpart *restrict gparts = (struct gpart *)map_data;
-  struct space *s = (struct space*) extra_data;
+  struct space *s = (struct space *)extra_data;
 
   for (int k = 0; k < nr_gparts; k++) {
 
     /* Get the particle */
     const struct gpart *restrict gp = &gparts[k];
 
-    if(gp->type == swift_type_dark_matter) continue;
-    
-    else if(gp->type == swift_type_gas) {
+    if (gp->type == swift_type_dark_matter)
+      continue;
+
+    else if (gp->type == swift_type_gas) {
 
       /* Get it's gassy friend */
       struct part *p = &s->parts[-gp->id_or_neg_offset];
@@ -2460,7 +2461,7 @@ void space_synchronize_particle_positions_mapper(void *map_data, int nr_gparts,
       xp->v_full[2] = gp->v_full[2];
     }
 
-    else if(gp->type == swift_type_star) {
+    else if (gp->type == swift_type_star) {
 
       /* Get it's stellar friend */
       struct spart *sp = &s->sparts[-gp->id_or_neg_offset];
@@ -2470,17 +2471,16 @@ void space_synchronize_particle_positions_mapper(void *map_data, int nr_gparts,
       sp->x[1] = gp->x[1];
       sp->x[2] = gp->x[2];
     }
-
   }
 }
 
-
 void space_synchronize_particle_positions(struct space *s) {
 
-  if ((s->nr_gparts > 0 && s->nr_parts > 0) || 
-      (s->nr_gparts > 0 && s->nr_sparts > 0))  
-    threadpool_map(&s->e->threadpool, space_synchronize_particle_positions_mapper, 
-		   s->gparts, s->nr_gparts, sizeof(struct gpart), 1000, (void*)s);
+  if ((s->nr_gparts > 0 && s->nr_parts > 0) ||
+      (s->nr_gparts > 0 && s->nr_sparts > 0))
+    threadpool_map(&s->e->threadpool,
+                   space_synchronize_particle_positions_mapper, s->gparts,
+                   s->nr_gparts, sizeof(struct gpart), 1000, (void *)s);
 }
 
 /**
diff --git a/tests/difffloat.py b/tests/difffloat.py
index f989ccb56fb1f008d4a60931cb7165f4f2156ebd..0bdc706a1c44ee6c42c54ad37e93f634742e06bc 100644
--- a/tests/difffloat.py
+++ b/tests/difffloat.py
@@ -107,7 +107,7 @@ for i in range(n_lines_to_check):
             print ""
             error = True
 
-        if abs(data1[i,j]) + abs(data2[i,j]) < 1e-6 : continue
+        if abs(data1[i,j]) < 4e-6 and abs(data2[i,j]) < 4e-6 : continue
 
         # Ignore pathological cases with rho_dh
         if ignoreSmallRhoDh and j == 8 and abs(data1[i,j]) < 2e-4: continue
diff --git a/tests/test125cells.c b/tests/test125cells.c
index b424187b743973c898ce887435eb8c1b64f4e386..e4c73b5e75df56436d277d719b3b83a179924a6f 100644
--- a/tests/test125cells.c
+++ b/tests/test125cells.c
@@ -237,6 +237,8 @@ void reset_particles(struct cell *c, struct hydro_space *hs,
  * separation.
  * @param density The density of the fluid.
  * @param partId The running counter of IDs.
+ * @param pert The perturbation to apply to the particles in the cell in units
+ *of the inter-particle separation.
  * @param vel The type of velocity field.
  * @param press The type of pressure field.
  */
diff --git a/tests/test125cells.sh.in b/tests/test125cells.sh.in
index dbaf6ebd59a1fe7260b31e2cab5b661b0bfe704d..d6d3ddc5b6b61bbd493c94005fd500a93ae7a01d 100755
--- a/tests/test125cells.sh.in
+++ b/tests/test125cells.sh.in
@@ -7,15 +7,25 @@ do
 
 	rm -f brute_force_125_standard.dat swift_dopair_125_standard.dat
 
+	echo "Running ./test125cells -n 6 -r 1 -v $v -p $p -f standard"
 	./test125cells -n 6 -r 1 -v $v -p $p -f standard
 
 	if [ -e brute_force_125_standard.dat ]
 	then
-	    python @srcdir@/difffloat.py brute_force_125_standard.dat swift_dopair_125_standard.dat @srcdir@/tolerance_125_normal.dat 6
+	    if python @srcdir@/difffloat.py brute_force_125_standard.dat swift_dopair_125_standard.dat @srcdir@/tolerance_125_normal.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
 done
 	
diff --git a/tests/test125cellsPerturbed.sh.in b/tests/test125cellsPerturbed.sh.in
index 887eef4f6aa972368a3439f0c6fd9bc89f6b44c3..9a5cfc07c978b0cfd5aa050aa117e887a1d40907 100755
--- a/tests/test125cellsPerturbed.sh.in
+++ b/tests/test125cellsPerturbed.sh.in
@@ -7,15 +7,25 @@ do
 
 	rm -f brute_force_125_perturbed.dat swift_dopair_125_perturbed.dat
 
+	echo "Running ./test125cells -n 6 -r 1 -d 0.1 -v $v -p $p -f perturbed"
 	./test125cells -n 6 -r 1 -d 0.1 -v $v -p $p -f perturbed
 
 	if [ -e brute_force_125_perturbed.dat ]
 	then
-	    python @srcdir@/difffloat.py brute_force_125_perturbed.dat swift_dopair_125_perturbed.dat @srcdir@/tolerance_125_perturbed.dat 6
+	    if python @srcdir@/difffloat.py brute_force_125_perturbed.dat swift_dopair_125_perturbed.dat @srcdir@/tolerance_125_perturbed.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
 done
 
diff --git a/tests/test27cells.sh.in b/tests/test27cells.sh.in
index 07b6b92a82cee2bbe9c593f8f62e750d4406f84e..4312ce55e13097d4ae40c289b9c5caa885ff37cc 100755
--- a/tests/test27cells.sh.in
+++ b/tests/test27cells.sh.in
@@ -3,18 +3,28 @@
 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 -a 1e-4"
     ./test27cells -n 6 -r 1 -d 0 -f standard -v $v -a 1e-4
 
     if [ -e brute_force_27_standard.dat ]
     then
-	python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_normal.dat 6
+	if python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_normal.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/test27cellsPerturbed.sh.in b/tests/test27cellsPerturbed.sh.in
index 1eb7b31bcd668e7362a9eb907be501aa8016abb8..2f2e1db76346ca8f0ea4c2365ee349e232a1ce53 100755
--- a/tests/test27cellsPerturbed.sh.in
+++ b/tests/test27cellsPerturbed.sh.in
@@ -6,15 +6,25 @@ 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 -a 5e-4"
     ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v -a 5e-4
 
     if [ -e brute_force_27_perturbed.dat ]
     then
-	python @srcdir@/difffloat.py brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat @srcdir@/tolerance_27_perturbed.dat 6 1
+	if python @srcdir@/difffloat.py brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat @srcdir@/tolerance_27_perturbed.dat 6 1
+	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_125_perturbed.dat b/tests/tolerance_125_perturbed.dat
index c9ad23d4472c46e64e8418e46c5fe71f813b23b5..04e642b28cb3729cb81f8183c3e69595ac651876 100644
--- a/tests/tolerance_125_perturbed.dat
+++ b/tests/tolerance_125_perturbed.dat
@@ -1,3 +1,3 @@
 #   ID    pos_x    pos_y    pos_z      v_x      v_y      v_z        h      rho    div_v        S        u        P        c      a_x      a_y      a_z     h_dt    v_sig    dS/dt    du/dt
     0	  1e-4	   1e-4	    1e-4       1e-4	1e-4	 1e-4	    1e-4   1e-4	  1e-4	       1e-4	1e-4	 1e-4	  1e-4	 1e-4	  1e-4	   1e-4	   1e-4	   1e-4	    1e-4     1e-4
-    0	  1e-4	   1e-4	    1e-4       1e-4	1e-4	 1e-4	    1e-4   1e-4	  1e-4	       1e-4	1e-4	 1e-4	  1e-4	 1e-4	  1e-4	   1e-4	   1e-4	   1e-4	    1e-4     1e-4
+    0	  1e-4	   1e-4	    1e-4       1e-4	1e-4	 1e-4	    1e-4   1e-4	  1e-4	       1e-4	1e-4	 1e-4	  1e-4	 5e-3	  5e-3	   5e-3	   1e-4	   1e-4	    1e-4     1e-4
diff --git a/tests/tolerance_27_perturbed.dat b/tests/tolerance_27_perturbed.dat
index b6ed8c2c18808156056f9c5816212866c2dfa998..9c6ee8c77cc6d53e67db9dbb86be197d49149b10 100644
--- a/tests/tolerance_27_perturbed.dat
+++ b/tests/tolerance_27_perturbed.dat
@@ -1,3 +1,3 @@
 #   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	   1.2e-6     1e-4	    5e-5       2e-3		 3.1e-6	     3e-6	   3e-6		 3e-6
-    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      2e-3	    1e-5       1e-4		 2e-5	     2e-3	   2e-3	 	 2e-3
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1.2e-6     1e-4	    5e-5       2e-3		 4e-6	     3e-6	   3e-6		 3e-6
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      2e-3	    1e-5       1e-4		 4e-5	     2e-3	   2e-3	 	 2e-3