Add dependency points in the resolver also to providers

We were traditionally adding points for some dependency types to the
real package, but we should also do it for providers of that package to
help the resolver especially if the real package is for some reason not
tagged for removal yet/anymore.

While at it we ensure that the points are only attributed once for each
package as especially with versioned provides a package can nowadays
provide another many times and would hence acquire a lot of points.

1 files changed, 107 insertions, 0 deletions

diff --git a/test/integration/test-resolver-provider-exchange b/test/integration/test-resolver-provider-exchange
new file mode 100755
index 000000000..3f5310fa6
--- /dev/null
+++ b/test/integration/test-resolver-provider-exchange
@@ -0,0 +1,107 @@
+#!/bin/sh
+set -e
+
+TESTDIR="$(readlink -f "$(dirname "$0")")"
+. "$TESTDIR/framework"
+setupenvironment
+configarchitecture 'amd64'
+
+insertinstalledpackage 'fuse' 'all' '2'
+insertpackage 'unstable' 'fuse3' 'all' '3' 'Conflicts: fuse
+Provides: fuse'
+
+insertpackage 'unstable' 'foobar-d' 'all' '1' 'Depends: fuse'
+insertpackage 'unstable' 'foobar-d2' 'all' '1' 'Depends: fuse
+Conflicts: fuse3'
+insertpackage 'unstable' 'foobar-d3' 'all' '1' 'Depends: fuse3'
+insertpackage 'unstable' 'foobar-r' 'all' '1' 'Recommends: fuse'
+insertpackage 'unstable' 'foobar-r2' 'all' '1' 'Recommends: fuse
+Conflicts: fuse3'
+insertpackage 'unstable' 'foobar-r3' 'all' '1' 'Recommends: fuse3'
+
+setupaptarchive
+
+installfoobars() {
+	testsuccessequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  foobar-d
+0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+Inst foobar-d (1 unstable [all])
+Conf foobar-d (1 unstable [all])' apt install -s foobar-d
+	testsuccessequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  foobar-d2
+0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+Inst foobar-d2 (1 unstable [all])
+Conf foobar-d2 (1 unstable [all])' apt install -s foobar-d2
+	testsuccessequal "Reading package lists...
+Building dependency tree...
+The following additional packages will be installed:
+  fuse3
+The following packages will be REMOVED:
+  fuse
+The following NEW packages will be installed:
+  foobar-d3 fuse3
+0 upgraded, 2 newly installed, 1 to remove and 0 not upgraded.
+Remv fuse [2]$1
+Inst fuse3 (3 unstable [all])
+Inst foobar-d3 (1 unstable [all])
+Conf fuse3 (3 unstable [all])
+Conf foobar-d3 (1 unstable [all])" apt install -s foobar-d3
+
+	testsuccessequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  foobar-r
+0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+Inst foobar-r (1 unstable [all])
+Conf foobar-r (1 unstable [all])' apt install -s foobar-r
+	testsuccessequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  foobar-r2
+0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+Inst foobar-r2 (1 unstable [all])
+Conf foobar-r2 (1 unstable [all])' apt install -s foobar-r2
+	if [ -z "$1" ]; then
+		testsuccessequal "Reading package lists...
+Building dependency tree...
+The following additional packages will be installed:
+  fuse3
+The following packages will be REMOVED:
+  fuse
+The following NEW packages will be installed:
+  foobar-r3 fuse3
+0 upgraded, 2 newly installed, 1 to remove and 0 not upgraded.
+Remv fuse [2]$1
+Inst foobar-r3 (1 unstable [all])
+Inst fuse3 (3 unstable [all])
+Conf foobar-r3 (1 unstable [all])
+Conf fuse3 (3 unstable [all])" apt install -s foobar-r3
+	else
+		testsuccessequal "Reading package lists...
+Building dependency tree...
+The following additional packages will be installed:
+  fuse3
+The following packages will be REMOVED:
+  fuse
+The following NEW packages will be installed:
+  foobar-r3 fuse3
+0 upgraded, 2 newly installed, 1 to remove and 0 not upgraded.
+Remv fuse [2]$1
+Inst fuse3 (3 unstable [all])
+Inst foobar-r3 (1 unstable [all])
+Conf fuse3 (3 unstable [all])
+Conf foobar-r3 (1 unstable [all])" apt install -s foobar-r3
+	fi
+}
+msgmsg 'fuse has no installed dependers'
+installfoobars
+
+for i in $(seq 0 10); do
+	insertinstalledpackage "stuff$i" 'all' '1' 'Depends: fuse'
+done
+msgmsg 'fuse has many dependers installed'
+installfoobars ' [stuff10:amd64 stuff0:amd64 stuff1:amd64 stuff2:amd64 stuff3:amd64 stuff4:amd64 stuff5:amd64 stuff6:amd64 stuff7:amd64 stuff8:amd64 stuff9:amd64 ]'