20221020 clvm rs exceptions (Chia-Network#127)

* Adapt raise tests to reflect the requested raise changes that were made in clvm_rs and now here.  Throwing a single atom as one argument causes that argument to be thrown individually.  Some people who write chialisp use ad-hoc tools and this is easier to parse.

* Adapt raise tests to reflect the requested raise changes that were made in clvm_rs and now here.  Throwing a single atom as one argument causes that argument to be thrown individually.  Some people who write chialisp use ad-hoc tools and this is easier to parse.

* Use the default backend in these tests so the whole suite can vary between python and rust

clvm/core_ops.py

@@ -46,7 +46,10 @@ def op_listp(args: SExp):
 
 
 def op_raise(args: SExp):
-    raise EvalError("clvm raise", args)
+    if args.list_len() == 1 and not args.first().listp():
+        raise EvalError("clvm raise", args.first())
+    else:
+        raise EvalError("clvm raise", args)
 
 
 def op_eq(args: SExp):

tests/brun/raise-1.txt

@@ -1,2 +1,2 @@
 brun -c '(x (q . 2000))'
-FAIL: clvm raise (2000)
+FAIL: clvm raise 2000

tests/brun/raise-2.txt

@@ -1,2 +1,2 @@
 brun -c '(x (q . 2000))'
-FAIL: clvm raise (2000)
+FAIL: clvm raise 2000

tests/brun/raise-list.txt

@@ -0,0 +1,2 @@
+brun '(x (q 99 101))'
+FAIL: clvm raise ((99 101))

tests/brun/raise-many-args.txt

@@ -0,0 +1,2 @@
+brun '(x (q . 99) (q . 101))'
+FAIL: clvm raise (99 101)

tests/brun/raise-single-atom.txt

@@ -0,0 +1,2 @@
+brun '(x (q . 99))'
+FAIL: clvm raise 99

tests/edge-cases/raise-02.txt

@@ -1,2 +1,2 @@
 brun -n '(x (q . 1))'
-FAIL: clvm raise (1)
+FAIL: clvm raise 1