osbuild-tests: create repository test

this test will create a temporary directory, create repo inside, then
fetch the checksum, and finally clean up the directory

cmd/osbuild-dnf-json-tests/main.go

@@ -0,0 +1,66 @@
+// This package contains tests related to dnf-json and rpmmd package.
+package main
+
+import (
+	"fmt"
+	"github.com/osbuild/osbuild-composer/internal/rpmmd"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"path"
+)
+
+func main() {
+	// Tests that the package wrapping dnf-json works as expected
+	dir, err := setUpTemporaryRepository()
+	if err != nil {
+		log.Fatal("Failed to set up temporary repository:", err)
+	}
+	TestFetchChecksum(false, dir)
+	err = tearDownTemporaryRepository(dir)
+	if err != nil {
+		log.Print("Warning: failed to clean up temporary repository.")
+	}
+}
+
+func setUpTemporaryRepository() (string, error) {
+	dir, err := ioutil.TempDir("/tmp", "osbuild-composer-test-")
+	if err != nil {
+		return "", err
+	}
+	cmd := exec.Command("createrepo_c", path.Join(dir))
+	err = cmd.Start()
+	if err != nil {
+		return "", err
+	}
+	err = cmd.Wait()
+	if err != nil {
+		return "", err
+	}
+	return dir, nil
+}
+
+func tearDownTemporaryRepository(dir string) error {
+	return os.RemoveAll(dir)
+}
+
+func TestFetchChecksum(quiet bool, dir string) {
+	repoCfg := rpmmd.RepoConfig{
+		Id:        "repo",
+		Name:      "repo",
+		BaseURL:   fmt.Sprintf("file://%s", dir),
+		IgnoreSSL: true,
+	}
+	if !quiet {
+		log.Println("Running TestFetchChecksum on:", dir)
+	}
+	c, err := repoCfg.FetchChecksum()
+	if err != nil {
+		log.Fatal("Failed to fetch checksum:", err)
+	}
+	if c == "" {
+		log.Fatal("The checksum is empty")
+	}
+	log.Println("SUCCESS")
+}

golang-github-osbuild-composer.spec

@@ -65,6 +65,7 @@ export GOFLAGS=-mod=vendor
 %gobuild -o _bin/osbuild-composer %{goipath}/cmd/osbuild-composer
 %gobuild -o _bin/osbuild-worker %{goipath}/cmd/osbuild-worker
 %gobuild -o _bin/osbuild-tests %{goipath}/cmd/osbuild-tests
+%gobuild -o _bin/osbuild-dnf-json-tests %{goipath}/cmd/osbuild-dnf-json-tests
 
 %install
 install -m 0755 -vd                                         %{buildroot}%{_libexecdir}/osbuild-composer
@@ -74,6 +75,7 @@ install -m 0755 -vp dnf-json                                %{buildroot}%{_libex
 
 install -m 0755 -vd                                         %{buildroot}%{_libexecdir}/tests/osbuild-composer
 install -m 0755 -vp _bin/osbuild-tests                      %{buildroot}%{_libexecdir}/tests/osbuild-composer/
+install -m 0755 -vp _bin/osbuild-dnf-json-tests             %{buildroot}%{_libexecdir}/tests/osbuild-composer/
 
 install -m 0755 -vd                                         %{buildroot}%{_datadir}/osbuild-composer/repositories
 install -m 0644 -vp repositories/*                          %{buildroot}%{_datadir}/osbuild-composer/repositories/
@@ -116,12 +118,14 @@ export GOPATH=$PWD/_build:%{gopath}
 Summary:	Integration tests
 Requires: 	osbuild-composer
 Requires: 	composer-cli
+Requires:	createrepo_c
 
 %description tests
 Integration tests to be run on a pristine-dedicated system to test the osbuild-composer package.
 
 %files tests
 %{_libexecdir}/tests/osbuild-composer/osbuild-tests
+%{_libexecdir}/tests/osbuild-composer/osbuild-dnf-json-tests
 
 %changelog
 * Sun Dec 1 11:00:00 CEST 2019 Ondrej Budai <obudai@redhat.com> - 4-1