tests: Fix tests to run on Guile.

* scaffold/boot/17-open-input-string.scm: Test 'current-module' to
see if we can lookup 'read-string' in a module.
* scaffold/boot/gc.scm: Skip all tests on Guile.
* tests/gc.test: Rename 'mes?' to 'mes-core?'; use 'current-module'
to check if we need to use core Mes procedures; and adjust all tests
accordingly.
* tests/scm.test (iota -1): Skip on Guile.
* tests/vector.test (make-vector): Adjust for Guile.

scaffold/boot/17-open-input-string.scm

@@ -32,5 +32,5 @@
       (core:write-error port)
       (core:display-error "\n")
       (exit (if (equal2? string "foo bar\n") 0 1)))
-    ((if (pair? (current-environment)) read-string (@ (ice-9 rdelim) read-string)) port)))
+    ((if (current-module) (@ (ice-9 rdelim) read-string) read-string) port)))
  (open-input-string "foo bar\n"))

scaffold/boot/gc.scm

@@ -16,6 +16,10 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
 
+;; Do not run this test on Guile or if modules are booted.
+(if (current-module)
+    (exit 0))
+
 (core:display "program:")
 (core:write %program)
 (core:display "\n")

tests/gc.test

@@ -28,13 +28,13 @@ exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -s "$0" "$@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
 
-(define mes? (pair? (current-environment)))
+(define mes-core? (if (current-module) #f #t))
 (gc)
-((if mes? core:display display) (gc-stats))
-((if mes? core:display display) "\n")
+((if mes-core? core:display display) (gc-stats))
+((if mes-core? core:display display) "\n")
 (define (loop n)
   (if (> n 0) (loop (- n 1))))
 (loop 100000)
 (gc)
-((if mes? core:display display) (gc-stats))
-((if mes? core:display display) "\n")
+((if mes-core? core:display display) (gc-stats))
+((if mes-core? core:display display) "\n")

tests/scm.test

@@ -130,8 +130,9 @@ exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
 (pass-if-equal "iota 0"
     '() (iota 0))
 
-(pass-if-equal "iota -1"
-               '() (iota -1))
+(unless guile?
+  (pass-if-equal "iota -1"
+      '() (iota -1)))
 
 (pass-if "cond-expand" (sequal? (cond-expand (foobar #f) (mes (display ": pass: *YAY*") 'mes) (guile (display ": pass: *GUILE*") 'mes)) 'mes))
 

tests/vector.test

@@ -39,7 +39,10 @@ exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
 (pass-if "vector?" (vector? #(1 2 c)))
 (pass-if "vector-length" (seq? (vector-length #(1)) 1))
 
-(pass-if "make-vector" (sequal? (make-vector 3) #(*unspecified* *unspecified* *unspecified*)))
+(pass-if "make-vector" (sequal? (vector *unspecified*
+                                        *unspecified*
+                                        *unspecified*)
+                                (make-vector 3)))
 (pass-if "make-vector 1" (sequal? (make-vector 3 0) #(0 0 0)))
 
 (pass-if "vector-ref" (seq? (vector-ref #(0 1) 1) 1))