feature(worker): ability to hot reload mirror job configrations, close #18

worker/config_diff_test.go

@@ -0,0 +1,73 @@
+package worker
+
+import (
+	"sort"
+	"testing"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestConfigDiff(t *testing.T) {
+	Convey("When old and new configs are equal", t, func() {
+		oldList := []mirrorConfig{
+			mirrorConfig{Name: "debian"},
+			mirrorConfig{Name: "debian-security"},
+			mirrorConfig{Name: "fedora"},
+			mirrorConfig{Name: "archlinux"},
+			mirrorConfig{Name: "AOSP"},
+			mirrorConfig{Name: "ubuntu"},
+		}
+		newList := make([]mirrorConfig, len(oldList))
+		copy(newList, oldList)
+
+		difference := diffMirrorConfig(oldList, newList)
+		So(len(difference), ShouldEqual, 0)
+	})
+	Convey("When giving two config lists with different names", t, func() {
+		oldList := []mirrorConfig{
+			mirrorConfig{Name: "debian"},
+			mirrorConfig{Name: "debian-security"},
+			mirrorConfig{Name: "fedora"},
+			mirrorConfig{Name: "archlinux"},
+			mirrorConfig{Name: "AOSP", Env: map[string]string{"REPO": "/usr/bin/repo"}},
+			mirrorConfig{Name: "ubuntu"},
+		}
+		newList := []mirrorConfig{
+			mirrorConfig{Name: "debian"},
+			mirrorConfig{Name: "debian-cd"},
+			mirrorConfig{Name: "archlinuxcn"},
+			mirrorConfig{Name: "AOSP", Env: map[string]string{"REPO": "/usr/local/bin/aosp-repo"}},
+			mirrorConfig{Name: "ubuntu-ports"},
+		}
+
+		difference := diffMirrorConfig(oldList, newList)
+
+		sort.Sort(sortableMirrorList(oldList))
+		emptyList := []mirrorConfig{}
+
+		for _, o := range oldList {
+			keep := true
+			for _, op := range difference {
+				if (op.diffOp == diffDelete || op.diffOp == diffModify) &&
+					op.mirCfg.Name == o.Name {
+
+					keep = false
+					break
+				}
+			}
+			if keep {
+				emptyList = append(emptyList, o)
+			}
+		}
+
+		for _, op := range difference {
+			if op.diffOp == diffAdd || op.diffOp == diffModify {
+				emptyList = append(emptyList, op.mirCfg)
+			}
+		}
+		sort.Sort(sortableMirrorList(emptyList))
+		sort.Sort(sortableMirrorList(newList))
+		So(emptyList, ShouldResemble, newList)
+
+	})
+}