diff --git a/tests/substitute-binary.scm b/tests/substitute-binary.scm
deleted file mode 100644
index 7c1204c1ab..0000000000
--- a/tests/substitute-binary.scm
+++ /dev/null
@@ -1,284 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix is distributed in the hope that it will be useful, but
-;;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;;; GNU General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
-
-(define-module (test-substitute-binary)
-  #:use-module (guix scripts substitute-binary)
-  #:use-module (guix base64)
-  #:use-module (guix hash)
-  #:use-module (guix serialization)
-  #:use-module (guix pk-crypto)
-  #:use-module (guix pki)
-  #:use-module (guix config)
-  #:use-module (guix base32)
-  #:use-module ((guix store) #:select (%store-prefix))
-  #:use-module ((guix ui) #:select (guix-warning-port))
-  #:use-module ((guix build utils) #:select (delete-file-recursively))
-  #:use-module (rnrs bytevectors)
-  #:use-module (rnrs io ports)
-  #:use-module (web uri)
-  #:use-module (ice-9 regex)
-  #:use-module (srfi srfi-26)
-  #:use-module (srfi srfi-34)
-  #:use-module (srfi srfi-35)
-  #:use-module ((srfi srfi-64) #:hide (test-error)))
-
-(define-syntax-rule (test-quit name error-rx exp)
-  "Emit a test that passes when EXP throws to 'quit' with value 1, and when
-it writes to GUIX-WARNING-PORT a messages that matches ERROR-RX."
-  (test-equal name
-    '(1 #t)
-    (let ((error-output (open-output-string)))
-      (parameterize ((guix-warning-port error-output))
-        (catch 'quit
-          (lambda ()
-            exp
-            #f)
-          (lambda (key value)
-            (list value
-                  (let ((message (get-output-string error-output)))
-                    (->bool (string-match error-rx message))))))))))
-
-(define %public-key
-  ;; This key is known to be in the ACL by default.
-  (call-with-input-file (string-append %config-directory "/signing-key.pub")
-    (compose string->canonical-sexp get-string-all)))
-
-(define %private-key
-  (call-with-input-file (string-append %config-directory "/signing-key.sec")
-    (compose string->canonical-sexp get-string-all)))
-
-(define* (signature-body bv #:key (public-key %public-key))
-  "Return the signature of BV as the base64-encoded body of a narinfo's
-'Signature' field."
-  (base64-encode
-   (string->utf8
-    (canonical-sexp->string
-     (signature-sexp (bytevector->hash-data (sha256 bv)
-                                            #:key-type 'rsa)
-                     %private-key
-                     public-key)))))
-
-(define %wrong-public-key
-  (string->canonical-sexp "(public-key
- (rsa
-  (n #00E05873AC2B168760343145918E954EE9AB73C026355693B192E01EE835261AA689E9EF46642E895BCD65C648524059FC450E4BA77A68F4C52D0E39EF0CC9359709AB6AAB153B63782201871325B0FDA19CB401CD99FD0C31A91CA9000AA90A77E82B89E036FB63BC1D3961207469B3B12468977148D376F8012BB12A4B11A8F1#)
-  (e #010001#)
-  )
- )"))
-
-(define* (signature-field bv-or-str
-                          #:key (version "1") (public-key %public-key))
-  "Return the 'Signature' field value of bytevector/string BV-OR-STR, using
-PUBLIC-KEY as the signature's principal, and using VERSION as the signature
-version identifier.."
-  (string-append version ";example.gnu.org;"
-                 (signature-body (if (string? bv-or-str)
-                                     (string->utf8 bv-or-str)
-                                     bv-or-str)
-                                 #:public-key public-key)))
-
-
-
-(test-begin "substitute-binary")
-
-(test-quit "not a number"
-    "signature version"
-  (narinfo-signature->canonical-sexp
-   (signature-field "foo" #:version "not a number")))
-
-(test-quit "wrong version number"
-    "unsupported.*version"
-  (narinfo-signature->canonical-sexp
-   (signature-field "foo" #:version "2")))
-
-(test-assert "valid narinfo-signature->canonical-sexp"
-  (canonical-sexp? (narinfo-signature->canonical-sexp (signature-field "foo"))))
-
-
-
-(define %narinfo
-  ;; Skeleton of the narinfo used below.
-  (string-append "StorePath: " (%store-prefix)
-                 "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo
-URL: example.nar
-Compression: none
-NarHash: sha256:" (bytevector->nix-base32-string
-                   (sha256 (string->utf8 "Substitutable data."))) "
-NarSize: 42
-References: bar baz
-Deriver: " (%store-prefix) "/foo.drv
-System: mips64el-linux\n"))
-
-(define (call-with-narinfo narinfo thunk)
-  "Call THUNK in a context where $GUIX_BINARY_SUBSTITUTE_URL is populated with
-a file for NARINFO."
-  (let ((narinfo-directory (and=> (string->uri (getenv
-                                                "GUIX_BINARY_SUBSTITUTE_URL"))
-                                  uri-path))
-        (cache-directory   (string-append (getenv "XDG_CACHE_HOME")
-                                          "/guix/substitute-binary/")))
-    (dynamic-wind
-      (lambda ()
-        (when (file-exists? cache-directory)
-          (delete-file-recursively cache-directory))
-        (call-with-output-file (string-append narinfo-directory
-                                              "/nix-cache-info")
-          (lambda (port)
-            (format port "StoreDir: ~a\nWantMassQuery: 0\n"
-                    (%store-prefix))))
-        (call-with-output-file (string-append narinfo-directory "/"
-                                              "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-                                              ".narinfo")
-          (cut display narinfo <>))
-
-        ;; Prepare the nar.
-        (call-with-output-file
-            (string-append narinfo-directory "/example.out")
-          (cut display "Substitutable data." <>))
-        (call-with-output-file
-            (string-append narinfo-directory "/example.nar")
-          (cute write-file
-                (string-append narinfo-directory "/example.out") <>))
-
-        (set! (@@ (guix scripts substitute-binary)
-                  %allow-unauthenticated-substitutes?)
-              #f))
-      thunk
-      (lambda ()
-        (delete-file-recursively cache-directory)))))
-
-(define-syntax-rule (with-narinfo narinfo body ...)
-  (call-with-narinfo narinfo (lambda () body ...)))
-
-;; Transmit these options to 'guix substitute-binary'.
-(set! (@@ (guix scripts substitute-binary) %cache-url)
-      (getenv "GUIX_BINARY_SUBSTITUTE_URL"))
-
-(test-equal "query narinfo without signature"
-  ""                                              ; not substitutable
-
-  (with-narinfo %narinfo
-    (string-trim-both
-     (with-output-to-string
-       (lambda ()
-         (with-input-from-string (string-append "have " (%store-prefix)
-                                                "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-           (lambda ()
-             (guix-substitute-binary "--query"))))))))
-
-(test-equal "query narinfo with invalid hash"
-  ;; The hash in the signature differs from the hash of %NARINFO.
-  ""
-
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field "different body")
-                               "\n")
-    (string-trim-both
-     (with-output-to-string
-       (lambda ()
-         (with-input-from-string (string-append "have " (%store-prefix)
-                                                "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-           (lambda ()
-             (guix-substitute-binary "--query"))))))))
-
-(test-equal "query narinfo signed with authorized key"
-  (string-append (%store-prefix) "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field %narinfo)
-                               "\n")
-    (string-trim-both
-     (with-output-to-string
-       (lambda ()
-         (with-input-from-string (string-append "have " (%store-prefix)
-                                                "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-           (lambda ()
-             (guix-substitute-binary "--query"))))))))
-
-(test-equal "query narinfo signed with unauthorized key"
-  ""                                              ; not substitutable
-
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field
-                                %narinfo
-                                #:public-key %wrong-public-key)
-                               "\n")
-    (string-trim-both
-     (with-output-to-string
-       (lambda ()
-         (with-input-from-string (string-append "have " (%store-prefix)
-                                                "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-           (lambda ()
-             (guix-substitute-binary "--query"))))))))
-
-(test-quit "substitute, no signature"
-    "lacks a signature"
-  (with-narinfo %narinfo
-    (guix-substitute-binary "--substitute"
-                            (string-append (%store-prefix)
-                                           "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-                            "foo")))
-
-(test-quit "substitute, invalid hash"
-    "hash"
-  ;; The hash in the signature differs from the hash of %NARINFO.
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field "different body")
-                               "\n")
-    (guix-substitute-binary "--substitute"
-                            (string-append (%store-prefix)
-                                           "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-                            "foo")))
-
-(test-quit "substitute, unauthorized key"
-    "unauthorized"
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field
-                                %narinfo
-                                #:public-key %wrong-public-key)
-                               "\n")
-    (guix-substitute-binary "--substitute"
-                            (string-append (%store-prefix)
-                                           "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-                            "foo")))
-
-(test-equal "substitute, authorized key"
-  "Substitutable data."
-  (with-narinfo (string-append %narinfo "Signature: "
-                               (signature-field %narinfo))
-    (dynamic-wind
-      (const #t)
-      (lambda ()
-        (guix-substitute-binary "--substitute"
-                                (string-append (%store-prefix)
-                                               "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
-                                "substitute-retrieved")
-        (call-with-input-file "substitute-retrieved" get-string-all))
-      (lambda ()
-        (false-if-exception (delete-file "substitute-retrieved"))))))
-
-(test-end "substitute-binary")
-
-
-(exit (= (test-runner-fail-count (test-runner-current)) 0))
-
-;;; Local Variables:
-;;; eval: (put 'with-narinfo 'scheme-indent-function 1)
-;;; eval: (put 'test-quit 'scheme-indent-function 2)
-;;; End: