fped/test/tsort

#!/bin/sh
. ./Common

###############################################################################

fped "tsort: total order" <<EOF
package "_"

%tsort {
	a b
	a c
	a d
	b c
	b d
	c d
}
EOF
expect <<EOF
a
b
c
d
EOF

#------------------------------------------------------------------------------

fped "tsort: partial order change (1)" <<EOF
package "_"

%tsort {
	a b
	a c
	a d
	d b
}
EOF
expect <<EOF
a
c
d
b
EOF

#------------------------------------------------------------------------------

fped "tsort: partial order change (2)" <<EOF
package "_"

%tsort {
	b c
	c d
	a b
}
EOF
expect <<EOF
a
b
c
d
EOF

#------------------------------------------------------------------------------

fped "tsort: old order differs from resolution order" <<EOF
package "_"

%tsort {
	+a +b +c +d
	a c
	a b
	a d
}
EOF
expect <<EOF
a
b
c
d
EOF

#------------------------------------------------------------------------------

fped "tsort: order change due to priority" <<EOF
package "_"

%tsort {
	a b
	a c 1
	a d
}
EOF
expect <<EOF
a
c
b
d
EOF

#------------------------------------------------------------------------------

fped "tsort: priority accumulation without decay" <<EOF
package "_"

%tsort {
	+a +b +c +d
	a b 1
	a d 1
}
EOF
expect <<EOF
a
b
d
c
EOF

#------------------------------------------------------------------------------

fped "tsort: priority accumulation with decay" <<EOF
package "_"

%tsort {
	+a -b +c +d
	a b 1
	a d 1
}
EOF
expect <<EOF
a
b
c
d
EOF

#------------------------------------------------------------------------------

fped_fail "tsort: cycle" <<EOF
package "_"

%tsort {
	a b
	b a
}
EOF
expect <<EOF
cycle detected in partial order
Aborted (core dumped)
EOF

# not entirely comfortable about the "Aborted (core dumped)". It's a system
# message (from the shell) that may get mangled. Also, since few people keep
# their cores these days, "(core dumped)" shouldn't really appear. Wonder why
# it does. strace agrees that __WCOREFLAG is set ...

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