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# This file is part of GNU pies testsuite. -*- Autotest -*-
# Copyright (C) 2019-2020 Sergey Poznyakoff
#
# GNU pies 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, or (at your option)
# any later version.
#
# GNU pies 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 pies.  If not, see <http://www.gnu.org/licenses/>.

AT_SETUP([Detecting cyclic dependencies])

AT_CHECK([
PIES_XFAIL_CHECK
# The following matrices describe the test.conf configuration file below.
#
# Dependency matrix:
#     0  1  2  3  4  5  6  7
#  0     X     X             
#  1     X                   
#  2              X          
#  3        X                
#  4  X                      
#  5                         
#  6                       X 
#  7                         
# 
# Transitive closure:
#     0  1  2  3  4  5  6  7
#  0  X  X  X  X  X          
#  1     X                   
#  2  X  X  X  X  X          
#  3  X  X  X  X  X          
#  4  X  X  X  X  X          
#  5                         
#  6                       X 
#  7                         
# 
# Legend:
#  0: a
#  1: b
#  2: c
#  3: d
#  4: e
#  5: f
#  6: g
#  7: h

AT_DATA([test.conf],
[component a {
   command "a";
   prerequisites (b,d);
}

component b {
   command "b";
   prerequisites (b);
}

component c {
   command "c";
   prerequisites (e);
}

component d {
   command "d";
   prerequisites (c);
}

component e {
   command "e";
   prerequisites (a);
}

component f {
   command "f";
}

component g {
   command "g";
   prerequisites (h);
}

component h {
   command "h";
}
])

pies --config-file test.conf --dump-depmap | trimws
],
[0],
[Dependency map:
    0  1  2
 0
 1        X
 2

Legend:
 0: f
 1: g
 2: h
],
[pies: cyclic dependencies detected:
pies: a -> d -> c -> e -> a
pies: b -> b
])

AT_CHECK([
AT_DATA([test.conf],[
component a {
	command "a";
	prerequisites (b,c);
}
component b {
	command "b";
	prerequisites (c);
}
component c {
	command "c";
	prerequisites (d);
}
component d {
	command "d";
	prerequisites (a);
}
])
pies --config-file test.conf --dump-depmap | trimws
],
[0],
[No components defined
],
[pies: cyclic dependencies detected:
pies: a -> c -> d -> a
pies: a -> b -> c -> d -> a
])

AT_CLEANUP

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