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-rw-r--r--tests/crate.scm589
1 files changed, 396 insertions, 193 deletions
diff --git a/tests/crate.scm b/tests/crate.scm
index 61a04f986b..bb7032c344 100644
--- a/tests/crate.scm
+++ b/tests/crate.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2014 David Thompson <davet@gnu.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -24,27 +25,72 @@
   #:use-module (guix build-system cargo)
   #:use-module (gcrypt hash)
   #:use-module (guix tests)
+  #:use-module (gnu packages)
   #:use-module (ice-9 iconv)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-64))
 
+
+;; crate versions and dependencies used here
+;; foo-0.8.1
+;; foo-1.0.0
+;; foo-1.0.3
+;; 	leaf-alice 0.7.5
+;;
+;; root-1.0.0
+;; root-1.0.4
+;; 	intermediate-a  1.0.42
+;; 	intermeidate-b ^1.0.0
+;; 	leaf-alice     ^0.7
+;; 	leaf-bob     ^3
+;;
+;; intermediate-a-1.0.40
+;; intermediate-a-1.0.42
+;; intermediate-a-1.1.0-alpha.1
+;; 	intermediate-a	1.2.3
+;; 	leaf-alice	0.7.5
+;; 	leaf-bob	^3
+;;
+;; intermediate-b-1.2.3
+;; 	leaf-bob	3.0.1
+;;
+;; leaf-alice-0.7.3
+;; leaf-alice-0.7.5
+;;
+;; leaf-bob-3.0.1
+
+
 (define test-foo-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
+    \"max_version\": \"1.0.3\",
     \"name\": \"foo\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
-    \"categories\": [\"test\"]
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"],
     \"actual_versions\": [
-      { \"id\": \"foo\",
+      { \"id\": 234210,
+        \"num\": \"0.8.1\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/foo/0.8.1/dependencies\"
+        }
+      },
+      { \"id\": 234212,
         \"num\": \"1.0.0\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
           \"dependencies\": \"/api/v1/crates/foo/1.0.0/dependencies\"
         }
+      },
+      { \"id\": 234214,
+        \"num\": \"1.0.3\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/foo/1.0.3/dependencies\"
+        }
       }
     ]
   }
@@ -54,8 +100,9 @@
   "{
   \"dependencies\": [
      {
-       \"crate_id\": \"bar\",
-       \"kind\": \"normal\"
+       \"crate_id\": \"leaf-alice\",
+       \"kind\": \"normal\",
+       \"req\": \"0.7.5\"
      }
   ]
 }")
@@ -63,20 +110,27 @@
 (define test-root-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
+    \"max_version\": \"1.0.4\",
     \"name\": \"root\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
-    \"categories\": [\"test\"]
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"],
     \"actual_versions\": [
-      { \"id\": \"foo\",
+      { \"id\": 234240,
         \"num\": \"1.0.0\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
           \"dependencies\": \"/api/v1/crates/root/1.0.0/dependencies\"
         }
+      },
+      { \"id\": 234242,
+        \"num\": \"1.0.4\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/root/1.0.4/dependencies\"
+        }
       }
     ]
   }
@@ -86,92 +140,114 @@
   "{
   \"dependencies\": [
      {
-       \"crate_id\": \"intermediate-1\",
-       \"kind\": \"normal\"
+       \"crate_id\": \"intermediate-a\",
+       \"kind\": \"normal\",
+       \"req\": \"1.0.42\"
      },
      {
-       \"crate_id\": \"intermediate-2\",
-       \"kind\": \"normal\"
+       \"crate_id\": \"intermediate-b\",
+       \"kind\": \"normal\",
+       \"req\": \"^1.0.0\"
      }
      {
        \"crate_id\": \"leaf-alice\",
-       \"kind\": \"normal\"
+       \"kind\": \"normal\",
+       \"req\": \"^0.7\"
      },
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\"
+       \"kind\": \"normal\",
+       \"req\": \"^3\"
      }
   ]
 }")
 
-(define test-intermediate-1-crate
+(define test-intermediate-a-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
-    \"name\": \"intermediate-1\",
+    \"max_version\": \"1.1.0-alpha.1\",
+    \"name\": \"intermediate-a\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
-    \"categories\": [\"test\"]
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"],
     \"actual_versions\": [
-      { \"id\": \"intermediate-1\",
-        \"num\": \"1.0.0\",
+      { \"id\": 234251,
+        \"num\": \"1.0.40\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/intermediate-a/1.0.40/dependencies\"
+        }
+      },
+      { \"id\": 234250,
+        \"num\": \"1.0.42\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/intermediate-a/1.0.42/dependencies\"
+        }
+      },
+      { \"id\": 234252,
+        \"num\": \"1.1.0-alpha.1\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
-          \"dependencies\": \"/api/v1/crates/intermediate-1/1.0.0/dependencies\"
+          \"dependencies\": \"/api/v1/crates/intermediate-a/1.1.0-alpha.1/dependencies\"
         }
       }
     ]
   }
 }")
 
-(define test-intermediate-1-dependencies
+(define test-intermediate-a-dependencies
   "{
   \"dependencies\": [
      {
-       \"crate_id\": \"intermediate-2\",
-       \"kind\": \"normal\"
+       \"crate_id\": \"intermediate-b\",
+       \"kind\": \"normal\",
+       \"req\": \"1.2.3\"
      },
      {
        \"crate_id\": \"leaf-alice\",
-       \"kind\": \"normal\"
+       \"kind\": \"normal\",
+       \"req\": \"0.7.5\"
      },
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\"
+       \"kind\": \"normal\",
+       \"req\": \"^3\"
      }
   ]
 }")
 
-(define test-intermediate-2-crate
+(define test-intermediate-b-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
-    \"name\": \"intermediate-2\",
+    \"max_version\": \"1.2.3\",
+    \"name\": \"intermediate-b\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
-    \"categories\": [\"test\"]
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"],
     \"actual_versions\": [
-      { \"id\": \"intermediate-2\",
-        \"num\": \"1.0.0\",
+      { \"id\": 234260,
+        \"num\": \"1.2.3\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
-          \"dependencies\": \"/api/v1/crates/intermediate-2/1.0.0/dependencies\"
+          \"dependencies\": \"/api/v1/crates/intermediate-b/1.2.3/dependencies\"
         }
       }
     ]
   }
 }")
 
-(define test-intermediate-2-dependencies
+(define test-intermediate-b-dependencies
   "{
   \"dependencies\": [
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\"
+       \"kind\": \"normal\",
+       \"req\": \"3.0.1\"
      }
   ]
 }")
@@ -179,19 +255,26 @@
 (define test-leaf-alice-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
+    \"max_version\": \"0.7.5\",
     \"name\": \"leaf-alice\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
-    \"categories\": [\"test\"]
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"],
     \"actual_versions\": [
-      { \"id\": \"leaf-alice\",
-        \"num\": \"1.0.0\",
+      { \"id\": 234270,
+        \"num\": \"0.7.3\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
-          \"dependencies\": \"/api/v1/crates/leaf-alice/1.0.0/dependencies\"
+          \"dependencies\": \"/api/v1/crates/leaf-alice/0.7.3/dependencies\"
+        }
+      },
+      { \"id\": 234272,
+        \"num\": \"0.7.5\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/leaf-alice/0.7.5/dependencies\"
         }
       }
     ]
@@ -206,19 +289,19 @@
 (define test-leaf-bob-crate
   "{
   \"crate\": {
-    \"max_version\": \"1.0.0\",
+    \"max_version\": \"3.0.1\",
     \"name\": \"leaf-bob\",
     \"description\": \"summary\",
     \"homepage\": \"http://example.com\",
     \"repository\": \"http://example.com\",
-    \"keywords\": [\"dummy\" \"test\"],
+    \"keywords\": [\"dummy\", \"test\"],
     \"categories\": [\"test\"]
     \"actual_versions\": [
-      { \"id\": \"leaf-bob\",
-        \"num\": \"1.0.0\",
+      { \"id\": 234280,
+        \"num\": \"3.0.1\",
         \"license\": \"MIT OR Apache-2.0\",
         \"links\": {
-          \"dependencies\": \"/api/v1/crates/leaf-bob/1.0.0/dependencies\"
+          \"dependencies\": \"/api/v1/crates/leaf-bob/3.0.1/dependencies\"
         }
       }
     ]
@@ -230,9 +313,13 @@
   \"dependencies\": []
 }")
 
+
 (define test-source-hash
   "")
 
+(define have-guile-semver?
+  (false-if-exception (resolve-interface '(semver))))
+
 
 (test-begin "crate")
 
@@ -242,8 +329,9 @@
    (dummy-package
     "rust-rustc-serialize"
     (source (dummy-origin
-     (uri (crate-uri "rustc-serialize" "1.0")))))))
+             (uri (crate-uri "rustc-serialize" "1.0")))))))
 
+(unless have-guile-semver? (test-skip 1))
 (test-assert "crate->guix-package"
   ;; Replace network resources with sample data.
   (mock ((guix http-client) http-fetch
@@ -251,37 +339,52 @@
            (match url
              ("https://crates.io/api/v1/crates/foo"
               (open-input-string test-foo-crate))
-             ("https://crates.io/api/v1/crates/foo/1.0.0/download"
+             ("https://crates.io/api/v1/crates/foo/1.0.3/download"
               (set! test-source-hash
-                (bytevector->nix-base32-string
-                 (sha256 (string->bytevector "empty file\n" "utf-8"))))
+                    (bytevector->nix-base32-string
+                     (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/foo/1.0.0/dependencies"
+             ("https://crates.io/api/v1/crates/foo/1.0.3/dependencies"
               (open-input-string test-foo-dependencies))
+             ("https://crates.io/api/v1/crates/leaf-alice"
+              (open-input-string test-leaf-alice-crate))
+             ("https://crates.io/api/v1/crates/leaf-alice/0.7.5/download"
+              (set! test-source-hash
+                    (bytevector->nix-base32-string
+                     (sha256 (string->bytevector "empty file\n" "utf-8"))))
+              (open-input-string "empty file\n"))
+             ("https://crates.io/api/v1/crates/leaf-alice/0.7.5/dependencies"
+              (open-input-string test-leaf-alice-dependencies))
              (_ (error "Unexpected URL: " url)))))
-    (match (crate->guix-package "foo")
-      (('package
-         ('name "rust-foo")
-         ('version "1.0.0")
-         ('source ('origin
-                    ('method 'url-fetch)
-                    ('uri ('crate-uri "foo" 'version))
-                    ('file-name ('string-append 'name "-" 'version ".tar.gz"))
-                    ('sha256
-                     ('base32
-                      (? string? hash)))))
-         ('build-system 'cargo-build-system)
-         ('arguments
-          ('quasiquote
-           ('#:cargo-inputs (("rust-bar" ('unquote rust-bar))))))
-         ('home-page "http://example.com")
-         ('synopsis "summary")
-         ('description "summary")
-         ('license ('list 'license:expat 'license:asl2.0)))
-       (string=? test-source-hash hash))
-      (x
-       (pk 'fail x #f)))))
 
+        (match (crate->guix-package "foo")
+          ((define-public 'rust-foo-1
+             (package (name "rust-foo")
+                      (version "1.0.3")
+                      (source
+                       (origin
+                         (method url-fetch)
+                         (uri (crate-uri "foo" 'version))
+                         (file-name (string-append name "-" version ".tar.gz"))
+                         (sha256
+                          (base32
+                           (?  string? hash)))))
+                      (build-system 'cargo-build-system)
+                      (arguments
+                       ('quasiquote
+                        (#:skip-build? #t
+                         #:cargo-inputs
+                         (("rust-leaf-alice" ('unquote 'rust-leaf-alice-0.7))))))
+                      (home-page "http://example.com")
+                      (synopsis "summary")
+                      (description "summary")
+                      (license (list license:expat license:asl2.0))))
+
+           (string=? test-source-hash hash))
+          (x
+           (pk 'fail x #f)))))
+
+(unless have-guile-semver? (test-skip 1))
 (test-assert "cargo-recursive-import"
   ;; Replace network resources with sample data.
   (mock ((guix http-client) http-fetch
@@ -289,151 +392,169 @@
            (match url
              ("https://crates.io/api/v1/crates/root"
               (open-input-string test-root-crate))
-             ("https://crates.io/api/v1/crates/root/1.0.0/download"
+             ("https://crates.io/api/v1/crates/root/1.0.4/download"
               (set! test-source-hash
                     (bytevector->nix-base32-string
                      (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/root/1.0.0/dependencies"
+             ("https://crates.io/api/v1/crates/root/1.0.4/dependencies"
               (open-input-string test-root-dependencies))
-             ("https://crates.io/api/v1/crates/intermediate-1"
-              (open-input-string test-intermediate-1-crate))
-             ("https://crates.io/api/v1/crates/intermediate-1/1.0.0/download"
+             ("https://crates.io/api/v1/crates/intermediate-a"
+              (open-input-string test-intermediate-a-crate))
+             ("https://crates.io/api/v1/crates/intermediate-a/1.0.42/download"
               (set! test-source-hash
                     (bytevector->nix-base32-string
                      (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/intermediate-1/1.0.0/dependencies"
-              (open-input-string test-intermediate-1-dependencies))
-             ("https://crates.io/api/v1/crates/intermediate-2"
-              (open-input-string test-intermediate-2-crate))
-             ("https://crates.io/api/v1/crates/intermediate-2/1.0.0/download"
+             ("https://crates.io/api/v1/crates/intermediate-a/1.0.42/dependencies"
+              (open-input-string test-intermediate-a-dependencies))
+             ("https://crates.io/api/v1/crates/intermediate-b"
+              (open-input-string test-intermediate-b-crate))
+             ("https://crates.io/api/v1/crates/intermediate-b/1.2.3/download"
               (set! test-source-hash
                     (bytevector->nix-base32-string
                      (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/intermediate-2/1.0.0/dependencies"
-              (open-input-string test-intermediate-2-dependencies))
+             ("https://crates.io/api/v1/crates/intermediate-b/1.2.3/dependencies"
+              (open-input-string test-intermediate-b-dependencies))
              ("https://crates.io/api/v1/crates/leaf-alice"
               (open-input-string test-leaf-alice-crate))
-             ("https://crates.io/api/v1/crates/leaf-alice/1.0.0/download"
+             ("https://crates.io/api/v1/crates/leaf-alice/0.7.5/download"
               (set! test-source-hash
                     (bytevector->nix-base32-string
                      (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/leaf-alice/1.0.0/dependencies"
+             ("https://crates.io/api/v1/crates/leaf-alice/0.7.5/dependencies"
               (open-input-string test-leaf-alice-dependencies))
              ("https://crates.io/api/v1/crates/leaf-bob"
               (open-input-string test-leaf-bob-crate))
-             ("https://crates.io/api/v1/crates/leaf-bob/1.0.0/download"
+             ("https://crates.io/api/v1/crates/leaf-bob/3.0.1/download"
               (set! test-source-hash
                     (bytevector->nix-base32-string
                      (sha256 (string->bytevector "empty file\n" "utf-8"))))
               (open-input-string "empty file\n"))
-             ("https://crates.io/api/v1/crates/leaf-bob/1.0.0/dependencies"
+             ("https://crates.io/api/v1/crates/leaf-bob/3.0.1/dependencies"
               (open-input-string test-leaf-bob-dependencies))
              (_ (error "Unexpected URL: " url)))))
         (match (crate-recursive-import "root")
-          ;; rust-intermediate-2 has no dependency on the rust-leaf-alice package, so this is a valid ordering
-          ((('package
-              ('name "rust-leaf-alice")
-              ('version (? string? ver))
-              ('source
-               ('origin
-                 ('method 'url-fetch)
-                 ('uri ('crate-uri "leaf-alice" 'version))
-                 ('file-name
-                  ('string-append 'name "-" 'version ".tar.gz"))
-                 ('sha256
-                  ('base32
-                   (? string? hash)))))
-              ('build-system 'cargo-build-system)
-              ('home-page "http://example.com")
-              ('synopsis "summary")
-              ('description "summary")
-              ('license ('list 'license:expat 'license:asl2.0)))
-            ('package
-              ('name "rust-leaf-bob")
-              ('version (? string? ver))
-              ('source
-               ('origin
-                 ('method 'url-fetch)
-                 ('uri ('crate-uri "leaf-bob" 'version))
-                 ('file-name
-                  ('string-append 'name "-" 'version ".tar.gz"))
-                 ('sha256
-                  ('base32
-                   (? string? hash)))))
-              ('build-system 'cargo-build-system)
-              ('home-page "http://example.com")
-              ('synopsis "summary")
-              ('description "summary")
-              ('license ('list 'license:expat 'license:asl2.0)))
-            ('package
-              ('name "rust-intermediate-2")
-              ('version (? string? ver))
-              ('source
-               ('origin
-                 ('method 'url-fetch)
-                 ('uri ('crate-uri "intermediate-2" 'version))
-                 ('file-name
-                  ('string-append 'name "-" 'version ".tar.gz"))
-                 ('sha256
-                  ('base32
-                   (? string? hash)))))
-              ('build-system 'cargo-build-system)
-              ('arguments
-               ('quasiquote
-                ('#:cargo-inputs (("rust-leaf-bob" ('unquote rust-leaf-bob))))))
-              ('home-page "http://example.com")
-              ('synopsis "summary")
-              ('description "summary")
-              ('license ('list 'license:expat 'license:asl2.0)))
-            ('package
-              ('name "rust-intermediate-1")
-              ('version (? string? ver))
-              ('source
-               ('origin
-                 ('method 'url-fetch)
-                 ('uri ('crate-uri "intermediate-1" 'version))
-                 ('file-name
-                  ('string-append 'name "-" 'version ".tar.gz"))
-                 ('sha256
-                  ('base32
-                   (? string? hash)))))
-              ('build-system 'cargo-build-system)
-              ('arguments
-               ('quasiquote
-                ('#:cargo-inputs (("rust-intermediate-2" ('unquote rust-intermediate-2))
-                                  ("rust-leaf-alice" ('unquote rust-leaf-alice))
-                                  ("rust-leaf-bob" ('unquote rust-leaf-bob))))))
-              ('home-page "http://example.com")
-              ('synopsis "summary")
-              ('description "summary")
-              ('license ('list 'license:expat 'license:asl2.0)))
-            ('package
-              ('name "rust-root")
-              ('version (? string? ver))
-              ('source
-               ('origin
-                 ('method 'url-fetch)
-                 ('uri ('crate-uri "root" 'version))
-                 ('file-name
-                  ('string-append 'name "-" 'version ".tar.gz"))
-                 ('sha256
-                  ('base32
-                   (? string? hash)))))
-              ('build-system 'cargo-build-system)
-              ('arguments
-               ('quasiquote
-                ('#:cargo-inputs (("rust-intermediate-1" ('unquote rust-intermediate-1))
-                                  ("rust-intermediate-2" ('unquote rust-intermediate-2))
-                                  ("rust-leaf-alice" ('unquote rust-leaf-alice))
-                                  ("rust-leaf-bob" ('unquote rust-leaf-bob))))))
-              ('home-page "http://example.com")
-              ('synopsis "summary")
-              ('description "summary")
-              ('license ('list 'license:expat 'license:asl2.0))))
+          ;; rust-intermediate-b has no dependency on the rust-leaf-alice
+          ;; package, so this is a valid ordering
+          (((define-public 'rust-leaf-alice-0.7
+              (package
+                (name "rust-leaf-alice")
+                (version "0.7.5")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "leaf-alice" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments ('quasiquote (#:skip-build? #t)))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0))))
+            (define-public 'rust-leaf-bob-3
+              (package
+                (name "rust-leaf-bob")
+                (version "3.0.1")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "leaf-bob" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments ('quasiquote (#:skip-build? #t)))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0))))
+            (define-public 'rust-intermediate-b-1
+              (package
+                (name "rust-intermediate-b")
+                (version "1.2.3")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "intermediate-b" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments
+                 ('quasiquote (#:skip-build? #t
+                               #:cargo-inputs
+                               (("rust-leaf-bob"
+                                 ('unquote rust-leaf-bob-3))))))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0))))
+            (define-public 'rust-intermediate-a-1
+              (package
+                (name "rust-intermediate-a")
+                (version "1.0.42")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "intermediate-a" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments
+                 ('quasiquote (#:skip-build? #t
+                               #:cargo-inputs
+                               (("rust-intermediate-b"
+                                 ('unquote rust-intermediate-b-1))
+                                ("rust-leaf-alice"
+                                 ('unquote 'rust-leaf-alice-0.7))
+                                ("rust-leaf-bob"
+                                 ('unquote rust-leaf-bob-3))))))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0))))
+            (define-public 'rust-root-1
+              (package
+                (name "rust-root")
+                (version "1.0.4")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "root" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments
+                 ('quasiquote (#:cargo-inputs
+                               (("rust-intermediate-a"
+                                 ('unquote rust-intermediate-a-1))
+                                ("rust-intermediate-b"
+                                 ('unquote rust-intermediate-b-1))
+                                ("rust-leaf-alice"
+                                 ('unquote 'rust-leaf-alice-0.7))
+                                ("rust-leaf-bob"
+                                 ('unquote rust-leaf-bob-3))))))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0)))))
            #t)
           (x
            (pk 'fail x #f)))))
@@ -458,4 +579,86 @@
   '(license:expat license:asl2.0)
   (string->license "MIT/Apache-2.0"))
 
+
+
+(define test-doctool-crate
+  "{
+  \"crate\": {
+    \"max_version\": \"2.2.2\",
+    \"name\": \"leaf-bob\",
+    \"description\": \"summary\",
+    \"homepage\": \"http://example.com\",
+    \"repository\": \"http://example.com\",
+    \"keywords\": [\"dummy\", \"test\"],
+    \"categories\": [\"test\"]
+    \"actual_versions\": [
+      { \"id\": 234280,
+        \"num\": \"2.2.2\",
+        \"license\": \"MIT OR Apache-2.0\",
+        \"links\": {
+          \"dependencies\": \"/api/v1/crates/doctool/2.2.2/dependencies\"
+        }
+      }
+    ]
+  }
+}")
+
+;; FIXME: This test depends on some existing packages
+(define test-doctool-dependencies
+  "{
+  \"dependencies\": [
+     {
+       \"crate_id\": \"docopt\",
+       \"kind\": \"normal\",
+       \"req\": \"^0.8.1\"
+     }
+  ]
+}")
+
+
+(test-assert "self-test: rust-docopt 0.8.x is gone, please adjust the test case"
+  (not (null? (find-packages-by-name "rust-docopt" "0.8"))))
+
+(unless have-guile-semver? (test-skip 1))
+(test-assert "cargo-recursive-import-hoors-existing-packages"
+  (mock ((guix http-client) http-fetch
+         (lambda (url . rest)
+           (match url
+             ("https://crates.io/api/v1/crates/doctool"
+              (open-input-string test-doctool-crate))
+             ("https://crates.io/api/v1/crates/doctool/2.2.2/download"
+              (set! test-source-hash
+                    (bytevector->nix-base32-string
+                     (sha256 (string->bytevector "empty file\n" "utf-8"))))
+              (open-input-string "empty file\n"))
+             ("https://crates.io/api/v1/crates/doctool/2.2.2/dependencies"
+              (open-input-string test-doctool-dependencies))
+             (_ (error "Unexpected URL: " url)))))
+        (match (crate-recursive-import "doctool")
+          (((define-public 'rust-doctool-2
+              (package
+                (name "rust-doctool")
+                (version "2.2.2")
+                (source
+                 (origin
+                   (method url-fetch)
+                   (uri (crate-uri "doctool" version))
+                   (file-name
+                    (string-append name "-" version ".tar.gz"))
+                   (sha256
+                    (base32
+                     (?  string? hash)))))
+                (build-system cargo-build-system)
+                (arguments
+                 ('quasiquote (#:cargo-inputs
+                               (("rust-docopt"
+                                 ('unquote 'rust-docopt-0.8))))))
+                (home-page "http://example.com")
+                (synopsis "summary")
+                (description "summary")
+                (license (list license:expat license:asl2.0)))))
+            #t)
+          (x
+           (pk 'fail x #f)))))
+
 (test-end "crate")