inferior: Add 'inferior-package-derivation'.

* guix/inferior.scm (read-inferior-response)
(send-inferior-request): New procedures.
(inferior-eval): Rewrite in terms of these.
(proxy, inferior-package-derivation, inferior-package->derivation)
(package-compiler): New procedures.
* tests/inferior.scm ("inferior-package-derivation"): New test.

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/inferior.scm b/tests/inferior.scm
index ff5cad4210..817fcb6c6b 100644
--- a/tests/inferior.scm
+++ b/tests/inferior.scm
@@ -17,9 +17,13 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (test-inferior)
+  #:use-module (guix tests)
   #:use-module (guix inferior)
   #:use-module (guix packages)
+  #:use-module (guix store)
+  #:use-module (guix derivations)
   #:use-module (gnu packages)
+  #:use-module (gnu packages bootstrap)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-64))
 
@@ -29,6 +33,9 @@
 (define %top-builddir
   (dirname (search-path %load-compiled-path "guix.go")))
 
+(define %store
+  (open-connection-for-tests))
+
 
 (test-begin "inferior")
 
@@ -72,4 +79,19 @@
            (close-inferior inferior)
            result))))
 
+(test-equal "inferior-package-derivation"
+  (map derivation-file-name
+       (list (package-derivation %store %bootstrap-guile "x86_64-linux")
+             (package-derivation %store %bootstrap-guile "armhf-linux")))
+  (let* ((inferior (open-inferior %top-builddir
+                                  #:command "scripts/guix"))
+         (packages (inferior-packages inferior))
+         (guile    (find (lambda (package)
+                           (string=? (package-name %bootstrap-guile)
+                                     (inferior-package-name package)))
+                         packages)))
+    (map derivation-file-name
+         (list (inferior-package-derivation %store guile "x86_64-linux")
+               (inferior-package-derivation %store guile "armhf-linux")))))
+
 (test-end "inferior")