diff --git a/extra/math/geometry/rect/rect-tests.factor b/extra/math/geometry/rect/rect-tests.factor
new file mode 100644
index 0000000000..0d2a8bc1ea
--- /dev/null
+++ b/extra/math/geometry/rect/rect-tests.factor
@@ -0,0 +1,37 @@
+
+USING: tools.test math.geometry.rect ;
+
+IN: math.geometry.rect.tests
+
+[ T{ rect f { 10 10 } { 20 20 } } ]
+[
+    T{ rect f { 10 10 } { 50 50 } }
+    T{ rect f { -10 -10 } { 40 40 } }
+    rect-intersect
+] unit-test
+
+[ T{ rect f { 200 200 } { 0 0 } } ]
+[
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 200 200 } { 40 40 } }
+    rect-intersect
+] unit-test
+
+[ f ] [
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 200 200 } { 40 40 } }
+    intersects?
+] unit-test
+
+[ t ] [
+    T{ rect f { 100 100 } { 50 50 } }
+    T{ rect f { 120 120 } { 40 40 } }
+    intersects?
+] unit-test
+
+[ f ] [
+    T{ rect f { 1000 100 } { 50 50 } }
+    T{ rect f { 120 120 } { 40 40 } }
+    intersects?
+] unit-test
+