impl tree with pid only

spike/review/reinvent/ezmded/server/tree_test.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"path"
+	"testing"
+	"time"
+)
+
+func TestTree(t *testing.T) {
+	path := path.Join(t.TempDir(), "index.yaml")
+	tree := NewTree(path)
+
+	if m, err := tree.Get(); err != nil {
+		t.Fatal(err)
+	} else if m == nil {
+		t.Fatal(m)
+	}
+
+	if err := tree.Del("id"); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := tree.Put("id", Branch{PID: "fake"}); err == nil {
+		t.Fatal(err)
+	}
+
+	if err := tree.Put("id", Branch{}); err != nil {
+		t.Fatal(err)
+	} else if branches, err := tree.Get(); err != nil {
+		t.Fatal(err)
+	} else if branch, ok := branches["id"]; !ok {
+		t.Fatal(err)
+	} else if branch.Title == "" {
+		t.Fatal(branch)
+	} else if time.Since(branch.Updated) > time.Hour {
+		t.Fatal(branch)
+	} else if branch.Deleted {
+		t.Fatal(branch)
+	}
+
+	if err := tree.Put("id2", Branch{PID: "id"}); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := tree.Del("id"); err != nil {
+		t.Fatal(err)
+	} else if branches, err := tree.Get(); err != nil {
+		t.Fatal(err)
+	} else if branch, ok := branches["id"]; !ok {
+		t.Fatal(ok)
+	} else if !branch.Deleted {
+		t.Fatal(branch)
+	}
+}