aboutsummaryrefslogtreecommitdiff
path: root/tests/graph.scm
blob: ed5849f4da17fb688d927e8b0c791968f09c0949 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 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-graph)
  #:use-module (guix tests)
  #:use-module (guix graph)
  #:use-module (guix scripts graph)
  #:use-module (guix packages)
  #:use-module (guix derivations)
  #:use-module (guix store)
  #:use-module (guix monads)
  #:use-module (guix build-system gnu)
  #:use-module (guix gexp)
  #:use-module (gnu packages)
  #:use-module (gnu packages bootstrap)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-11)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-64))

(define %store
  (open-connection-for-tests))

(define (make-recording-backend)
  "Return a <graph-backend> and a thunk that returns the recorded nodes and
edges."
  (let ((nodes '())
        (edges '()))
    (define (record-node id label port)
      (set! nodes (cons (list id label) nodes)))
    (define (record-edge source target port)
      (set! edges (cons (list source target) edges)))
    (define (return)
      (values (reverse nodes) (reverse edges)))

    (values (graph-backend (const #t) (const #t)
                           record-node record-edge)
            return)))

(define (package->tuple package)
  "Return a tuple representing PACKAGE as produced by %PACKAGE-NODE-TYPE."
  (list (object-address package)
        (package-full-name package)))

(define (edge->tuple source target)
  "Likewise for an edge from SOURCE to TARGET."
  (list (object-address source)
        (object-address target)))


(test-begin "graph")

(test-assert "package DAG"
  (let-values (((backend nodes+edges) (make-recording-backend)))
    (let* ((p1 (dummy-package "p1"))
           (p2 (dummy-package "p2" (inputs `(("p1" ,p1)))))
           (p3 (dummy-package "p3" (inputs `(("p2" ,p2) ("p1", p1))))))
      (run-with-store %store
        (export-graph (list p3) 'port
                      #:node-type %package-node-type
                      #:backend backend))
      ;; We should see nothing more than these 3 packages.
      (let-values (((nodes edges) (nodes+edges)))
        (and (equal? nodes (map package->tuple (list p3 p2 p1)))
             (equal? edges
                     (map edge->tuple
                          (list p3 p3 p2)
                          (list p2 p1 p1))))))))

(test-assert "bag-emerged DAG"
  (let-values (((backend nodes+edges) (make-recording-backend)))
    (let ((p        (dummy-package "p"))
          (implicit (map (match-lambda
                           ((label package) package))
                         (standard-packages))))
      (run-with-store %store
        (export-graph (list p) 'port
                      #:node-type %bag-emerged-node-type
                      #:backend backend))
      ;; We should see exactly P and IMPLICIT, with one edge from P to each
      ;; element of IMPLICIT.
      (let-values (((nodes edges) (nodes+edges)))
        (and (equal? (match nodes
                       (((labels names) ...)
                        names))
                     (map package-full-name (cons p implicit)))
             (equal? (match edges
                       (((sources destinations) ...)
                        (zip (map store-path-package-name sources)
                             (map store-path-package-name destinations))))
                     (map (lambda (destination)
                            (list "p-0.drv"
                                  (string-append
                                   (package-full-name destination)
                                   ".drv")))
                          implicit)))))))

(test-assert "bag DAG"
  (let-values (((backend nodes+edges) (make-recording-backend)))
    (let ((p (dummy-package "p")))
      (run-with-store %store
        (export-graph (list p) 'port
                      #:node-type %bag-node-type
                      #:backend backend))
      ;; We should see P, its implicit inputs as well as the whole DAG, which
      ;; should include bootstrap binaries.
      (let-values (((nodes edges) (nodes+edges)))
        (every (lambda (name)
                 (find (cut string=? name <>)
                       (match nodes
                         (((labels names) ...)
                          names))))
               (match %bootstrap-inputs
                 (((labels packages) ...)
                  (map package-full-name packages))))))))

(test-assert "derivation DAG"
  (let-values (((backend nodes+edges) (make-recording-backend)))
    (run-with-store %store
      (mlet* %store-monad ((txt   (text-file "text-file" "Hello!"))
                           (guile (package->derivation %bootstrap-guile))
                           (drv   (gexp->derivation "output"
                                                    #~(symlink #$txt #$output)
                                                    #:guile-for-build
                                                    guile)))
        ;; We should get at least these 3 nodes and corresponding edges.
        (mbegin %store-monad
          (export-graph (list drv) 'port
                        #:node-type %derivation-node-type
                        #:backend backend)
          (let-values (((nodes edges) (nodes+edges)))
            ;; XXX: For some reason we need to throw in some 'basename'.
            (return (and (match nodes
                           (((ids labels) ...)
                            (let ((ids (map basename ids)))
                              (every (lambda (item)
                                       (member (basename item) ids))
                                     (list txt
                                           (derivation-file-name drv)
                                           (derivation-file-name guile))))))
                         (every (cut member <>
                                     (map (lambda (edge)
                                            (map basename edge))
                                          edges))
                                (list (map (compose basename derivation-file-name)
                                           (list drv guile))
                                      (list (basename (derivation-file-name drv))
                                            (basename txt))))))))))))

(test-assert "reference DAG"
  (let-values (((backend nodes+edges) (make-recording-backend)))
    (run-with-store %store
      (mlet* %store-monad ((txt   (text-file "text-file" "Hello!"))
                           (guile (package->derivation %bootstrap-guile))
                           (drv   (gexp->derivation "output"
                                                    #~(symlink #$txt #$output)
                                                    #:guile-for-build
                                                    guile))
                           (out -> (derivation->output-path drv)))
        ;; We should see only OUT and TXT, with an edge from the former to the
        ;; latter.
        (mbegin %store-monad
          (built-derivations (list drv))
          (export-graph (list (derivation->output-path drv)) 'port
                        #:node-type %reference-node-type
                        #:backend backend)
          (let-values (((nodes edges) (nodes+edges)))
            (return
             (and (equal? (match nodes
                            (((ids labels) ...)
                             ids))
                          (list out txt))
                  (equal? edges `((,out ,txt)))))))))))

(test-end "graph")


(exit (= (test-runner-fail-count (test-runner-current)) 0))