Allow input and output to be mixed in Test

This was previously forbidden as it can lead to confusing errors,
but it also broke some valid Tests, as GAP can begin outputting
before a complete statement has been inputted.

lib/test.gi

@@ -118,9 +118,6 @@ InstallGlobalFunction(ParseTestInput, function(str, ignorecomments, fnam)
       Add(pos, i);
       i := i+1;
     elif Length(lines[i]) > 1 and lines[i]{[1..2]} = "> " then
-      if Length(outp) > 0 and Length(outp[Length(outp)]) > 0 then
-        testError("Invalid test file: '> ' continuation found in the middle of a test output");
-      fi;
       if foundcmd then
         testError("Invalid test file: #@ command found in the middle of a single test");
       fi;

tst/testinstall/interpreter.tst

@@ -248,6 +248,25 @@ gap> Unbind(l![fail]);
 Error, PosObj Assignment: <position> must be a positive small integer (not the\
  value 'fail')
 
+#
+# Statements where input + output are mixed
+# Checks test can handle output directly cute+pasted from GAP's output
+#
+gap> x :=
+> 2;
+2
+gap> x :=
+> 2; y :=
+2
+> 3;
+3
+gap> if x = 2 then
+>   Print("pass\n");
+pass
+> else
+>   Print("fail\n");
+> fi;
+
 #
 #
 gap> STOP_TEST("interpreter.tst", 1);

tst/testspecial/broken-test.g

@@ -1,5 +1,3 @@
-Test("broken-test-1.tst", rec(width := 800));
-quit;
 Test("broken-test-2.tst", rec(width := 800));
 quit;
 Test("broken-test-3.tst", rec(width := 800));

tst/testspecial/broken-test.g.out

@@ -1,47 +1,39 @@
-gap> Test("broken-test-1.tst", rec(width := 800));
-Error, Invalid test file: '> ' continuation found in the middle of a test output at broken-test-1.tst:3 at GAPROOT/lib/test.gi:31 called from
-testError( "Invalid test file: '> ' continuation found in the middle of a test output" ); at GAPROOT/lib/test.gi:122 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
-<function "Test">( <arguments> )
- called from read-eval loop at *stdin*:2
-type 'quit;' to quit to outer loop
-brk> quit;
 gap> Test("broken-test-2.tst", rec(width := 800));
 Error, Invalid test file: #@ command found in the middle of a single test at broken-test-2.tst:5 at GAPROOT/lib/test.gi:31 called from
-testError( "Invalid test file: #@ command found in the middle of a single test" ); at GAPROOT/lib/test.gi:132 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
+testError( "Invalid test file: #@ command found in the middle of a single test" ); at GAPROOT/lib/test.gi:129 called from
+ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:563 called from
 <function "Test">( <arguments> )
  called from read-eval loop at *stdin*:2
 type 'quit;' to quit to outer loop
 brk> quit;
 gap> Test("broken-test-3.tst", rec(width := 800));
 Error, Invalid test file at broken-test-3.tst:5 at GAPROOT/lib/test.gi:31 called from
-testError( "Invalid test file" ); at GAPROOT/lib/test.gi:138 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
+testError( "Invalid test file" ); at GAPROOT/lib/test.gi:135 called from
+ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:563 called from
 <function "Test">( <arguments> )
  called from read-eval loop at *stdin*:2
 type 'quit;' to quit to outer loop
 brk> quit;
 gap> Test("broken-test-4.tst", rec(width := 800));
 Error, Invalid test file: Nested #@if at broken-test-4.tst:2 at GAPROOT/lib/test.gi:31 called from
 testError( "Invalid test file: Nested #@if" ); at GAPROOT/lib/test.gi:52 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
+ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:563 called from
 <function "Test">( <arguments> )
  called from read-eval loop at *stdin*:2
 type 'quit;' to quit to outer loop
 brk> quit;
 gap> Test("broken-test-5.tst", rec(width := 800));
 Error, Invalid test file: two #@else at broken-test-5.tst:7 at GAPROOT/lib/test.gi:31 called from
 testError( "Invalid test file: two #@else" ); at GAPROOT/lib/test.gi:63 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
+ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:563 called from
 <function "Test">( <arguments> )
  called from read-eval loop at *stdin*:2
 type 'quit;' to quit to outer loop
 brk> quit;
 gap> Test("invalidtestfile.tst", rec(width := 800));
 Error, Invalid test file at invalidtestfile.tst:7 at GAPROOT/lib/test.gi:31 called from
-testError( "Invalid test file" ); at GAPROOT/lib/test.gi:138 called from
-ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:566 called from
+testError( "Invalid test file" ); at GAPROOT/lib/test.gi:135 called from
+ParseTestInput( full, opts.ignoreComments, fnam ) at GAPROOT/lib/test.gi:563 called from
 <function "Test">( <arguments> )
  called from read-eval loop at *stdin*:2
 type 'quit;' to quit to outer loop