forked from cerc-io/ipld-eth-server
115 lines
2.7 KiB
Go
115 lines
2.7 KiB
Go
package dagutils
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import (
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"context"
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"testing"
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dag "gx/ipfs/QmPJNbVw8o3ohC43ppSXyNXwYKsWShG4zygnirHptfbHri/go-merkledag"
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mdtest "gx/ipfs/QmPJNbVw8o3ohC43ppSXyNXwYKsWShG4zygnirHptfbHri/go-merkledag/test"
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path "gx/ipfs/QmQAgv6Gaoe2tQpcabqwKXKChp2MZ7i3UXv9DqTTaxCaTR/go-path"
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cid "gx/ipfs/QmTbxNB1NwDesLmKTscr4udL2tVP7MaxvXnD1D9yX7g3PN/go-cid"
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ipld "gx/ipfs/QmZ6nzCLwGLVfRzYLpD7pW6UNuBDKEcA2imJtVpbEx2rxy/go-ipld-format"
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)
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func TestAddLink(t *testing.T) {
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ctx, context := context.WithCancel(context.Background())
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defer context()
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ds := mdtest.Mock()
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fishnode := dag.NodeWithData([]byte("fishcakes!"))
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err := ds.Add(ctx, fishnode)
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if err != nil {
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t.Fatal(err)
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}
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nd := new(dag.ProtoNode)
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nnode, err := addLink(ctx, ds, nd, "fish", fishnode)
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if err != nil {
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t.Fatal(err)
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}
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fnprime, err := nnode.GetLinkedNode(ctx, ds, "fish")
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if err != nil {
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t.Fatal(err)
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}
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fnpkey := fnprime.Cid()
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if !fnpkey.Equals(fishnode.Cid()) {
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t.Fatal("wrong child node found!")
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}
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}
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func assertNodeAtPath(t *testing.T, ds ipld.DAGService, root *dag.ProtoNode, pth string, exp cid.Cid) {
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parts := path.SplitList(pth)
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cur := root
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for _, e := range parts {
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nxt, err := cur.GetLinkedProtoNode(context.Background(), ds, e)
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if err != nil {
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t.Fatal(err)
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}
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cur = nxt
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}
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curc := cur.Cid()
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if !curc.Equals(exp) {
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t.Fatal("node not as expected at end of path")
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}
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}
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func TestInsertNode(t *testing.T) {
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root := new(dag.ProtoNode)
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e := NewDagEditor(root, nil)
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testInsert(t, e, "a", "anodefortesting", false, "")
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testInsert(t, e, "a/b", "data", false, "")
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testInsert(t, e, "a/b/c/d/e", "blah", false, "no link by that name")
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testInsert(t, e, "a/b/c/d/e", "foo", true, "")
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testInsert(t, e, "a/b/c/d/f", "baz", true, "")
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testInsert(t, e, "a/b/c/d/f", "bar", true, "")
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testInsert(t, e, "", "bar", true, "cannot create link with no name")
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testInsert(t, e, "////", "slashes", true, "cannot create link with no name")
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c := e.GetNode().Cid()
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if c.String() != "QmZ8yeT9uD6ouJPNAYt62XffYuXBT6b4mP4obRSE9cJrSt" {
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t.Fatal("output was different than expected: ", c)
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}
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}
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func testInsert(t *testing.T, e *Editor, path, data string, create bool, experr string) {
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child := dag.NodeWithData([]byte(data))
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err := e.tmp.Add(context.Background(), child)
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if err != nil {
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t.Fatal(err)
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}
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var c func() *dag.ProtoNode
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if create {
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c = func() *dag.ProtoNode {
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return &dag.ProtoNode{}
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}
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}
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err = e.InsertNodeAtPath(context.Background(), path, child, c)
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if experr != "" {
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var got string
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if err != nil {
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got = err.Error()
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}
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if got != experr {
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t.Fatalf("expected '%s' but got '%s'", experr, got)
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}
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return
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}
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if err != nil {
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t.Fatal(err, path, data, create, experr)
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}
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assertNodeAtPath(t, e.tmp, e.root, path, child.Cid())
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}
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