diff --git a/test/algorithms/difference1.cpp b/test/algorithms/difference1.cpp
index 7a11b528c..f7e7bd24d 100644
--- a/test/algorithms/difference1.cpp
+++ b/test/algorithms/difference1.cpp
@@ -51,6 +51,18 @@ BOOST_AUTO_TEST_CASE( test_difference_linestring_linestring )
 
     typedef test_difference_of_geometries<L, L, ML> tester;
 
+    tester()
+        (from_wkt<L>("LINESTRING(0 0,1 1,2 1,3 2)"),
+         from_wkt<L>("LINESTRING(0 2,1 1,2 1,3 0)"),
+         from_wkt<ML>("MULTILINESTRING((0 0,1 1),(2 1,3 2))"),
+         "lldf00");
+
+    tester()
+        (from_wkt<L>("LINESTRING(0 2,1 1,2 1,3 0)"),
+         from_wkt<L>("LINESTRING(0 0,1 1,2 1,3 2)"),
+         from_wkt<ML>("MULTILINESTRING((0 2,1 1),(2 1,3 0))"),
+         "lldf00-1");
+
     tester()
         (from_wkt<L>("LINESTRING(0 0,5 0)"),
          from_wkt<L>("LINESTRING(3 0,4 0)"),
diff --git a/test/algorithms/intersection1.cpp b/test/algorithms/intersection1.cpp
index 9e95f3b7b..808d0e357 100644
--- a/test/algorithms/intersection1.cpp
+++ b/test/algorithms/intersection1.cpp
@@ -51,6 +51,12 @@ BOOST_AUTO_TEST_CASE( test_intersection_linestring_linestring )
 
     typedef test_intersection_of_geometries<L, L, ML> tester;
 
+    tester()
+        (from_wkt<L>("LINESTRING(0 0,1 1,2 1,3 2)"),
+         from_wkt<L>("LINESTRING(0 2,1 1,2 1,3 0)"),
+         from_wkt<ML>("MULTILINESTRING((1 1,2 1))"),
+         "lli00");
+
     tester()
         (from_wkt<L>("LINESTRING(0 0,5 0)"),
          from_wkt<L>("LINESTRING(3 0,4 0)"),
diff --git a/test/algorithms/sym_difference1.cpp b/test/algorithms/sym_difference1.cpp
index 8fcfd5ffb..e67dd26af 100644
--- a/test/algorithms/sym_difference1.cpp
+++ b/test/algorithms/sym_difference1.cpp
@@ -51,6 +51,13 @@ BOOST_AUTO_TEST_CASE( test_sym_difference_linestring_linestring )
 
     typedef test_sym_difference_of_geometries<L, L, ML> tester;
 
+    tester()
+        (from_wkt<L>("LINESTRING(0 0,1 1,2 1,3 2)"),
+         from_wkt<L>("LINESTRING(0 2,1 1,2 1,3 0)"),
+         from_wkt<ML>("MULTILINESTRING((0 0,1 1),(2 1,3 2),\
+                      (0 2,1 1),(2 1,3 0))"),
+         "llsdf00");
+
     tester()
         (from_wkt<L>("LINESTRING(0 0,5 0)"),
          from_wkt<L>("LINESTRING(3 0,4 0)"),
diff --git a/test/algorithms/union1.cpp b/test/algorithms/union1.cpp
index a0f0cf17b..552adf4db 100644
--- a/test/algorithms/union1.cpp
+++ b/test/algorithms/union1.cpp
@@ -51,6 +51,13 @@ BOOST_AUTO_TEST_CASE( test_difference_linestring_linestring )
 
     typedef test_union_of_geometries<L, L, ML> tester;
 
+    tester()
+        (from_wkt<L>("LINESTRING(0 0,1 1,2 1,3 2)"),
+         from_wkt<L>("LINESTRING(0 2,1 1,2 1,3 0)"),
+         from_wkt<ML>("MULTILINESTRING((0 0,1 1),(2 1,3 2),(1 1,2 1),\
+                      (0 2,1 1),(2 1,3 0))"),
+         "lldf00");
+
     tester()
         (from_wkt<L>("LINESTRING(0 0,5 0)"),
          from_wkt<L>("LINESTRING(3 0,4 0)"),