diff --git a/src/db/unit_tests/dbRegionTests.cc b/src/db/unit_tests/dbRegionTests.cc
index 6926aec7a..bd3352be8 100644
--- a/src/db/unit_tests/dbRegionTests.cc
+++ b/src/db/unit_tests/dbRegionTests.cc
@@ -580,13 +580,14 @@ TEST(15d)
   r.insert (db::Box (db::Point (600, 200), db::Point (700, 300)));
   r.insert (db::Box (db::Point (0, 140), db::Point (350, 160)));
 
-  EXPECT_EQ (r.space_check (120, db::RegionCheckOptions (false, db::Projection)).to_string (),
+  EXPECT_EQ (db::compare(r.space_check (120, db::RegionCheckOptions (false, db::Projection)),
     "(0,100;100,100)|(100,140;0,140);"
     "(300,160;350,160)|(350,200;300,200);"
     "(300,100;350,100)|(350,140;300,140);"
     "(300,100;400,100)|(400,200;300,200);"
     "(0,160;100,160)|(100,200;0,200);"
     "(600,100;700,100)|(700,200;600,200)"
+    ), true
   );
 }
 
@@ -682,17 +683,18 @@ TEST(15h)
   db::RegionCheckOptions options;
   options.shielded = false; //  does NOT disable internal shielding for "opposite"
   options.metrics = db::Projection;
+
   options.opposite_filter = db::NoOppositeFilter;
-  EXPECT_EQ (r1.separation_check (r2, 40, options).to_string (),
-    "(200,300;200,200)/(210,200;210,300);(100,200;100,300)/(90,300;90,200);(200,100;200,0)/(210,0;210,100);(100,0;100,100)/(90,100;90,0)");
+  EXPECT_EQ (db::compare(r1.separation_check (r2, 40, options),
+    "(200,300;200,200)/(210,200;210,300);(100,200;100,300)/(90,300;90,200);(200,100;200,0)/(210,0;210,100);(100,0;100,100)/(90,100;90,0)"), true);
 
   options.opposite_filter = db::NotOpposite;
-  EXPECT_EQ (r1.separation_check (r2, 40, options).to_string (),
-    "(100,200;100,300)/(90,300;90,200);(200,300;200,200)/(210,200;210,300)");
+  EXPECT_EQ (db::compare(r1.separation_check (r2, 40, options),
+    "(100,200;100,300)/(90,300;90,200);(200,300;200,200)/(210,200;210,300)"), true);
 
   options.opposite_filter = db::OnlyOpposite;
-  EXPECT_EQ (r1.separation_check (r2, 40, options).to_string (),
-    "(100,0;100,100)/(90,100;90,0);(200,100;200,0)/(210,0;210,100)");
+  EXPECT_EQ (db::compare (r1.separation_check (r2, 40, options),
+    "(100,0;100,100)/(90,100;90,0);(200,100;200,0)/(210,0;210,100)"), true);
 }
 
 TEST(15i)
diff --git a/testdata/drc/drcSimpleTests_20.drc b/testdata/drc/drcSimpleTests_20.drc
index 7d96f6d6e..a9622510b 100644
--- a/testdata/drc/drcSimpleTests_20.drc
+++ b/testdata/drc/drcSimpleTests_20.drc
@@ -1,6 +1,13 @@
 
 # Interact with count
 
+has_unbounded_range = false
+begin
+  r = eval("..2")
+  has_unbounded_range = true
+rescue => ex
+end
+
 source($drc_test_source, "TOP")
 target($drc_test_target)
 
@@ -13,13 +20,21 @@ l2.output(2, 0)
 l1.interacting(l2, 1).output(100, 0)
 l1.interacting(l2, 2).output(101, 0)
 l1.interacting(l2, 1..2).output(102, 0)
-l1.interacting(l2, 2..).output(103, 0)
+if has_unbounded_range
+  l1.interacting(l2, 2..).output(103, 0)
+else
+  l1.interacting(l2, 2..10000).output(103, 0)
+end
 l1.interacting(l2, 1, 2).output(104, 0)
 
 l1.overlapping(l2, 1).output(110, 0)
 l1.overlapping(l2, 2).output(111, 0)
 l1.overlapping(l2, 1..2).output(112, 0)
-l1.overlapping(l2, 2..).output(113, 0)
+if has_unbounded_range
+  l1.overlapping(l2, 2..).output(113, 0)
+else
+  l1.overlapping(l2, 2..10000).output(113, 0)
+end
 l1.overlapping(l2, 1, 2).output(114, 0)
 
 l = l1.dup
@@ -32,7 +47,11 @@ l = l1.dup
 l.select_interacting(l2, 1..2)
 l.output(202, 0)
 l = l1.dup
-l.select_interacting(l2, 2..)
+if has_unbounded_range
+  l.select_interacting(l2, 2..)
+else
+  l.select_interacting(l2, 2..10000)
+end
 l.output(203, 0)
 l = l1.dup
 l.select_interacting(l2, 1, 2)
@@ -48,7 +67,11 @@ l = l1.dup
 l.select_overlapping(l2, 1..2)
 l.output(212, 0)
 l = l1.dup
-l.select_overlapping(l2, 2..)
+if has_unbounded_range
+  l.select_overlapping(l2, 2..)
+else
+  l.select_overlapping(l2, 2..10000)
+end
 l.output(213, 0)
 l = l1.dup
 l.select_overlapping(l2, 1, 2)
@@ -57,7 +80,11 @@ l.output(214, 0)
 l1.not_interacting(l2, 1).output(300, 0)
 l1.not_interacting(l2, 2).output(301, 0)
 l1.not_interacting(l2, 1..2).output(302, 0)
-l1.not_interacting(l2, 2..).output(303, 0)
+if has_unbounded_range
+  l1.not_interacting(l2, 2..).output(303, 0)
+else
+  l1.not_interacting(l2, 2..10000).output(303, 0)
+end
 l1.not_interacting(l2, 1, 2).output(304, 0)
 
 l1.not_overlapping(l2, 1).output(310, 0)
@@ -76,7 +103,11 @@ l = l1.dup
 l.select_not_interacting(l2, 1..2)
 l.output(402, 0)
 l = l1.dup
-l.select_not_interacting(l2, 2..)
+if has_unbounded_range
+  l.select_not_interacting(l2, 2..)
+else
+  l.select_not_interacting(l2, 2..10000)
+end
 l.output(403, 0)
 l = l1.dup
 l.select_not_interacting(l2, 1, 2)
@@ -92,7 +123,11 @@ l = l1.dup
 l.select_not_overlapping(l2, 1..2)
 l.output(412, 0)
 l = l1.dup
-l.select_not_overlapping(l2, 2..)
+if has_unbounded_range
+  l.select_not_overlapping(l2, 2..)
+else
+  l.select_not_overlapping(l2, 2..10000)
+end
 l.output(413, 0)
 l = l1.dup
 l.select_not_overlapping(l2, 1, 2)
diff --git a/testdata/drc/drcSimpleTests_26.drc b/testdata/drc/drcSimpleTests_26.drc
index acb7e3cda..a21f6ac44 100644
--- a/testdata/drc/drcSimpleTests_26.drc
+++ b/testdata/drc/drcSimpleTests_26.drc
@@ -1,4 +1,11 @@
 
+has_unbounded_range = false
+begin
+  r = eval("..2")
+  has_unbounded_range = true
+rescue => ex
+end
+
 source $drc_test_source
 target $drc_test_target
 
@@ -17,7 +24,11 @@ l3.output(3, 0)
 ar = 4.0/3.0   # "L" shape
 l1.with_area_ratio(ar).output(100, 0)
 l1.without_area_ratio(ar).output(101, 0)
-l1.with_area_ratio(ar+1e-6..).output(102, 0)
+if has_unbounded_range
+  l1.with_area_ratio(ar+1e-6..).output(102, 0)
+else
+  l1.with_area_ratio(ar+1e-6..10000).output(102, 0)
+end
 l1.with_area_ratio(0.0, ar-1e-6).output(103, 0)
 
 l1.squares.output(110, 0)
@@ -25,12 +36,20 @@ l1.non_squares.output(111, 0)
 
 l2.with_bbox_aspect_ratio(2).output(120, 0)
 l2.with_bbox_aspect_ratio(1).output(121, 0)
-l2.with_bbox_aspect_ratio(..1).output(122, 0)
+if has_unbounded_range
+  l2.with_bbox_aspect_ratio(..1).output(122, 0)
+else
+  l2.with_bbox_aspect_ratio(0..1).output(122, 0)
+end
 l2.without_bbox_aspect_ratio(0..2).output(123, 0)
 
 l2.with_relative_height(2).output(130, 0)
 l2.with_relative_height(1).output(131, 0)
-l2.with_relative_height(..1).output(132, 0)
+if has_unbounded_range
+  l2.with_relative_height(..1).output(132, 0)
+else
+  l2.with_relative_height(0..1).output(132, 0)
+end
 l2.without_relative_height(0..2).output(133, 0)