Add tests for repo loading functionality

meson.build

@@ -19,3 +19,7 @@ test('tests', exe_test,
     'G_TEST_BUILDDIR=@0@'.format(meson.current_build_dir()),
   ],
 )
+repo_test = find_program('tests/test-load-repo.sh')
+test('repo-tests', repo_test,
+    env: ['G_TEST_BUILDDIR=@0@'.format(meson.current_build_dir())],
+)

tests/test-load-repo.sh

@@ -0,0 +1,185 @@
+#!/bin/bash
+set -euo pipefail
+
+REPOBASEURL=https://ftp.icm.edu.pl/pub/Linux/fedora/linux/releases/30/
+FUS_EXE=$G_TEST_BUILDDIR/fus
+
+test_tmpdir=$(mktemp -d -t fus.test.XXXXXX)
+trap "rm -rf $test_tmpdir" EXIT
+err_file=$test_tmpdir/fus_error.log
+out_file=$test_tmpdir/fus_out.log
+
+test_remote_repo() {
+    local modrepourl=$REPOBASEURL/Modular/x86_64/os/
+    local pkgrepourl=$REPOBASEURL/Everything/x86_64/os/
+
+    $FUS_EXE \
+        -r modular,repo,$modrepourl \
+        -r pkgs,repo,$pkgrepourl \
+        -a x86_64 \
+        libmodulemd 2>$err_file >$out_file
+
+    if [ -n "$(cat $err_file)" ] || [ -z "$(cat $out_file)" ]; then
+        echo "Error when running fus: $(cat $err_file)"
+        exit 1
+    fi
+}
+
+# Copied from the rpm-ostree project test suite
+# builds a new RPM and adds it to the testdir's repo
+# $1 - name
+# $2+ - optional, treated as directive/value pairs
+build_rpm() {
+    local name=$1; shift
+    local epoch=""
+    local version=1.0
+    local release=1
+    local arch=x86_64
+
+    mkdir -p $test_tmpdir/yumrepo/{specs,packages}
+    local spec=$test_tmpdir/yumrepo/specs/$name.spec
+
+    # write out the header
+    cat > $spec << EOF
+Name: $name
+Summary: %{name}
+License: GPLv2+
+EOF
+
+    local build= install= files= pretrans= pre= post= posttrans= post_args=
+    local verifyscript= uinfo=
+    local transfiletriggerin= transfiletriggerin_patterns=
+    local transfiletriggerin2= transfiletriggerin2_patterns=
+    local transfiletriggerun= transfiletriggerun_patterns=
+    while [ $# -ne 0 ]; do
+        local section=$1; shift
+        local arg=$1; shift
+        case $section in
+        requires)
+            echo "Requires: $arg" >> $spec;;
+        provides)
+            echo "Provides: $arg" >> $spec;;
+        conflicts)
+            echo "Conflicts: $arg" >> $spec;;
+        post_args)
+            post_args="$arg";;
+        version|release|epoch|arch|build|install|files|pretrans|pre|post|posttrans|verifyscript|uinfo)
+            declare $section="$arg";;
+        transfiletriggerin)
+            transfiletriggerin_patterns="$arg";
+            declare $section="$1"; shift;;
+        transfiletriggerin2)
+            transfiletriggerin2_patterns="$arg";
+            declare $section="$1"; shift;;
+        transfiletriggerun)
+            transfiletriggerun_patterns="$arg";
+            declare $section="$1", shift;;
+        *)
+            assert_no_reached "unhandled section $section";;
+        esac
+    done
+
+    cat >> $spec << EOF
+Version: $version
+Release: $release
+${epoch:+Epoch: $epoch}
+BuildArch: $arch
+
+%description
+%{summary}
+
+# by default, we create a /usr/bin/$name script which just outputs $name
+%build
+echo -e "#!/bin/sh\necho $name-$version-$release.$arch" > $name
+chmod a+x $name
+$build
+
+${pretrans:+%pretrans}
+$pretrans
+
+${pre:+%pre}
+$pre
+
+${post:+%post} ${post_args}
+$post
+
+${posttrans:+%posttrans}
+$posttrans
+
+${transfiletriggerin:+%transfiletriggerin -- ${transfiletriggerin_patterns}}
+$transfiletriggerin
+
+${transfiletriggerin2:+%transfiletriggerin2 -- ${transfiletriggerin2_patterns}}
+$transfiletriggerin2
+
+${transfiletriggerun:+%transfiletriggerun -- ${transfiletriggerun_patterns}}
+$transfiletriggerun
+
+${verifyscript:+%verifyscript}
+$verifyscript
+
+%install
+mkdir -p %{buildroot}/usr/bin
+install $name %{buildroot}/usr/bin
+$install
+
+%clean
+rm -rf %{buildroot}
+
+%files
+/usr/bin/$name
+$files
+EOF
+
+    local buildarch=$arch
+    if [ "$arch" == "noarch" ]; then
+        buildarch=$(uname -m)
+    fi
+
+    (cd $test_tmpdir/yumrepo/specs &&
+     setarch $buildarch rpmbuild --target $arch -ba $name.spec \
+        --define "_topdir $PWD" \
+        --define "_sourcedir $PWD" \
+        --define "_specdir $PWD" \
+        --define "_builddir $PWD/.build" \
+        --define "_srcrpmdir $PWD" \
+        --define "_rpmdir $test_tmpdir/yumrepo/packages" \
+        --define "_buildrootdir $PWD")
+    # use --keep-all-metadata to retain previous updateinfo
+    (cd $test_tmpdir/yumrepo &&
+     createrepo_c --no-database --update --keep-all-metadata .)
+    # convenience function to avoid follow-up add-pkg
+    if [ -n "$uinfo" ]; then
+        uinfo_cmd add-pkg $uinfo $name 0 $version $release $arch
+    fi
+    if test '!' -f $test_tmpdir/yumrepo.repo; then
+        cat > $test_tmpdir/yumrepo.repo.tmp << EOF
+[test-repo]
+name=test-repo
+baseurl=file:///$PWD/yumrepo
+EOF
+
+        mv $test_tmpdir/yumrepo.repo{.tmp,}
+    fi
+}
+
+test_local_repo() {
+    local pkgrepo="$test_tmpdir/yumrepo/"
+
+    build_rpm sh provides "/usr/bin/sh"
+    build_rpm foo
+    build_rpm bar requires "foo = 1.0-1"
+
+    $FUS_EXE \
+        -r pkgs,repo,$pkgrepo \
+        -a x86_64 \
+        bar 2>$err_file >$out_file
+
+    if [ -n "$(cat $err_file)" ] || [ -z "$(cat $out_file)" ]; then
+        echo "Error when running fus: $(cat $err_file)"
+        exit 1
+    fi
+}
+
+test_remote_repo
+test_local_repo