diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 1232c11dcf0bb43d4b7491e1f68d32206a6d6bec..1a9831e9a452941b09565b2142c5130d38e9f15b 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -18,16 +18,16 @@ target_link_libraries(test_nearby_extr ${contour_531_LIBRARY}
   ${netcdf95_LIBRARY} ${netcdff_LIBRARY} ${NetCDF_LIBRARY}
   ${shapelib_03_LIBRARY})
 
-# test_successive_overlap
+# test_overlap
 
-add_executable(test_successive_overlap derived_types.f90 overlap.f90
+add_executable(test_overlap derived_types.f90 overlap.f90
   read_snapshot.f90 spher_polygon_area.f90 spher_polyline_area.f90
   weight.f90 read_eddy.f90 read_field_indices.f90
   candidate_overlap.f90 write_eddy.f90 init_shapefiles.f90
   write_overlap.f90
-  ${CMAKE_CURRENT_LIST_DIR}/test_successive_overlap.f90)
+  ${CMAKE_CURRENT_LIST_DIR}/test_overlap.f90)
 
-target_link_libraries(test_successive_overlap ${contour_531_LIBRARY}
+target_link_libraries(test_overlap ${contour_531_LIBRARY}
   ${fortrangis_LIBRARY} ${fortranc_LIBRARY} ${shapelib_LIBRARY}
   ${GPC_F_LIBRARY} ${GPC_LIBRARY} ${shapelib_03_LIBRARY}
   ${jumble_LIBRARY} ${nr_util_LIBRARY} ${geometry_LIBRARY})
diff --git a/Tests/short_tests.json b/Tests/short_tests.json
index 4a37d7b7008be558c3ca16ad4a441ad34d0f5c3a..089bd4cfda902189f1a731f4b0e60a6f9eaa0faa 100644
--- a/Tests/short_tests.json
+++ b/Tests/short_tests.json
@@ -225,7 +225,7 @@
 	"input" : "f"
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Region_4_2006_01_01/SHP_triplet",
 		  "$src_dir/Tests/Input/Region_4_2006_01_01/SHP_triplet"],
 	"title" : "Successive_overlap",
@@ -242,7 +242,7 @@
 	]
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Extraction_eddies_region_5/SHP_triplet",
 		  "$src_dir/Tests/Input/Extraction_eddies_region_5/SHP_triplet"],
 	"title" : "Successive_overlap_region_5_one_date",
@@ -279,7 +279,7 @@
 	"description": "Periodic domain."
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Extraction_eddies_periodic/SHP_triplet",
 		  "$src_dir/Tests/Input/Extraction_eddies_periodic/SHP_triplet"
 		 ],
@@ -288,7 +288,7 @@
 	"stdin_filename": "$src_dir/Tests/Input/successive_overlap_periodic_nml.txt"
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Region_4_2006_01_01/SHP_triplet",
 		  "$src_dir/Tests/Input/Region_4_2006_01_02/SHP_triplet"],
 	"title" : "Successive_overlap_different_snapshots",
@@ -296,7 +296,7 @@
 	"stdin_filename": "$src_dir/Tests/Input/successive_overlap_nml.txt"
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Extraction_eddies_region_2_noise/SHP_triplet",
 		  "$src_dir/Tests/Input/Region_2_2006_01_02/SHP_triplet"],
 	"title" : "Successive_overlap_region_2",
@@ -304,7 +304,7 @@
 	"stdin_filename": "$src_dir/Tests/Input/successive_overlap_region_2_nml.txt"
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$src_dir/Tests/Input/Extraction_eddies_region_5/SHP_triplet",
 		  "$src_dir/Tests/Input/SHP_triplet_region_5_2006_01_02"],
 	"title" : "Successive_overlap_region_5",
@@ -312,7 +312,7 @@
 	"stdin_filename": "$src_dir/Tests/Input/successive_overlap_region_5_nml.txt"
     },
     {
-	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_successive_overlap",
+	"args" : ["$src_dir/mkdir_run.sh", "$build_dir/test_overlap",
 		  "$large_input_dir/SHP_triplet_2006_01_01",
 		  "$large_input_dir/SHP_triplet_2006_01_02"],
 	"title" : "Successive_overlap_global",
diff --git a/Tests/test_successive_overlap.f90 b/Tests/test_overlap.f90
similarity index 91%
rename from Tests/test_successive_overlap.f90
rename to Tests/test_overlap.f90
index ebadb1068076b31564761dc76c6cebf4234e1544..a20a6863b3acaa5103fbf586d06c18b48249e1d4 100644
--- a/Tests/test_successive_overlap.f90
+++ b/Tests/test_overlap.f90
@@ -1,4 +1,4 @@
-program test_successive_overlap
+program test_overlap
 
   use, intrinsic:: ISO_FORTRAN_ENV
 
@@ -18,7 +18,7 @@ program test_successive_overlap
 
   character(len = :), allocatable:: snapshot_1, snapshot_2
   integer unit_edgelist, i, k
-  type(snapshot) flow(2)
+  type(snapshot), allocatable:: flow(:) ! (max_delta + 1)
   TYPE(shpfileobject) hshp_extremum ! shapefile extremum
   TYPE(shpfileobject) hshp_outermost ! shapefile outermost_contour
   TYPE(shpfileobject) hshp_max_speed ! shapefile max_speed_contour
@@ -31,13 +31,13 @@ program test_successive_overlap
   ! longitude and latitude steps, in degrees and in rad
 
   logical periodic ! grid is periodic in longitude
-  integer:: nlon = - 1, nlat = - 1
+  integer:: nlon = - 1, nlat = - 1, max_delta = 1
 
   integer:: dist_lim = 12
   ! We look for an overlapping eddy at dist_lim (in grid points) of
   ! the first extremum.
 
-  namelist /main_nml/ corner_deg, step_deg, nlon, nlat, dist_lim
+  namelist /main_nml/ corner_deg, step_deg, nlon, nlat, dist_lim, max_delta
 
   !-------------------------------------------------------------------------
 
@@ -56,10 +56,11 @@ program test_successive_overlap
   periodic = nint(360. / step_deg(1)) == nlon
   print *, "periodic = ", periodic
   if (periodic) call assert(2 * dist_lim * step_deg(1) < 180., &
-       "test_successive_overlap dist_lim")
+       "test_overlap dist_lim")
 
   corner = corner_deg * deg_to_rad
   step = step_deg * deg_to_rad
+  allocate(flow(max_delta + 1))
 
   call shp_open_03(hshp_extremum, trim(snapshot_1) // "/extremum", &
        pszaccess = "rb")
@@ -82,13 +83,15 @@ program test_successive_overlap
   call shp_open_03(hshp_max_speed, trim(snapshot_2) // "/max_speed_contour", &
        pszaccess = "rb")
   ! We assume that the field indices are the same than in snapshot_1.
-  call read_snapshot(flow(2), k, hshp_extremum, hshp_outermost, &
+  call read_snapshot(flow(max_delta + 1), k, hshp_extremum, hshp_outermost, &
        hshp_max_speed, corner, step, nlon, nlat, periodic, dist_lim)
   CALL shpclose(hshp_extremum)
   CALL shpclose(hshp_outermost)
   CALL shpclose(hshp_max_speed)
   print *, snapshot_2, ", k = ", k
 
+  flow(2:max_delta)%number_eddies = 0
+
   call new_unit(unit_edgelist)
   open(unit_edgelist, file = "edgelist.csv", status = "replace", &
        action  = "write")
@@ -101,7 +104,8 @@ program test_successive_overlap
 
   call init_shapefiles(hshp_extremum, hshp_outermost, hshp_max_speed)
   call overlap(flow, unit_edgelist, nlon, nlat, periodic, dist_lim, &
-       hshp_extremum, hshp_outermost, hshp_max_speed, j = 2, k = k, delta = 1)
+       hshp_extremum, hshp_outermost, hshp_max_speed, j = max_delta + 1, &
+       k = k, delta = max_delta)
   close(unit_edgelist)
   print *, 'Created file "edgelist.csv".'
   CALL shpclose(hshp_extremum)
@@ -129,4 +133,4 @@ program test_successive_overlap
   end do
   print *
 
-end program test_successive_overlap
+end program test_overlap