[ test ] Add issue#1988 to the test suite

This appears to be fixed now, presumably thanks to PR#3108 or similar. Closes idris-lang#1988
CodingCellist · Mar 18, 2024 · c7a4fbe · c7a4fbe
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diff --git a/tests/idris2/total/total024/Issue1988.idr b/tests/idris2/total/total024/Issue1988.idr
@@ -0,0 +1,14 @@
+module Issue1988
+
+data D : Type where Abs : (D -> Void) -> D
+
+app : D -> D -> Void
+app (Abs f) d = f d
+
+omega : D
+omega = Abs (\x => app x x)
+
+total
+Omega : Void
+Omega = app omega omega
+
diff --git a/tests/idris2/total/total024/expected b/tests/idris2/total/total024/expected
@@ -0,0 +1,7 @@
+1/1: Building Issue1988 (Issue1988.idr)
+Error: Omega is not total, possibly not terminating due to function Issue1988.Abs being reachable via Issue1988.omega -> Issue1988.Abs
+
+Issue1988:11:1--12:13
+ 11 | total
+ 12 | Omega : Void
+
diff --git a/tests/idris2/total/total024/run b/tests/idris2/total/total024/run
@@ -0,0 +1,3 @@
+. ../../../testutils.sh
+
+idris2 --check Issue1988.idr