func iterateResults(qs graph.QuadStore, it graph.Iterator) []string {
var res []string
for graph.Next(it) {
v := it.Result()
if t, ok := v.(*Token); ok && t.Kind == nodeKind {
res = append(res, qs.NameOf(it.Result()))
} else {
res = append(res, qs.Quad(it.Result()).String())
}
}
sort.Strings(res)
it.Reset()
return res
}
func TestSetIterator(t *testing.T) {
var ts *LevelDBTripleStore
var tmpDir string
Convey("Given a prepared database", t, func() {
tmpDir, _ = ioutil.TempDir(os.TempDir(), "cayley_test")
t.Log(tmpDir)
defer os.RemoveAll(tmpDir)
ok := CreateNewLevelDB(tmpDir)
So(ok, ShouldBeTrue)
ts = NewDefaultLevelDBTripleStore(tmpDir, nil)
ts.AddTripleSet(makeTripleSet())
var it graph.Iterator
Convey("Can create a subject iterator", func() {
it = ts.GetTripleIterator("s", ts.GetIdFor("C"))
Convey("Containing the right things", func() {
expected := []string{
graph.MakeTriple("C", "follows", "B", "").ToString(),
graph.MakeTriple("C", "follows", "D", "").ToString(),
}
actual := extractTripleFromIterator(ts, it)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
Convey("And checkable", func() {
and := graph.NewAndIterator()
and.AddSubIterator(ts.GetTriplesAllIterator())
and.AddSubIterator(it)
expected := []string{
graph.MakeTriple("C", "follows", "B", "").ToString(),
graph.MakeTriple("C", "follows", "D", "").ToString(),
}
actual := extractTripleFromIterator(ts, and)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
Reset(func() {
it.Reset()
})
})
Convey("Can create an object iterator", func() {
it = ts.GetTripleIterator("o", ts.GetIdFor("F"))
Convey("Containing the right things", func() {
expected := []string{
graph.MakeTriple("B", "follows", "F", "").ToString(),
graph.MakeTriple("E", "follows", "F", "").ToString(),
}
actual := extractTripleFromIterator(ts, it)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
Convey("Mutually and-checkable", func() {
and := graph.NewAndIterator()
and.AddSubIterator(ts.GetTripleIterator("s", ts.GetIdFor("B")))
and.AddSubIterator(it)
expected := []string{
graph.MakeTriple("B", "follows", "F", "").ToString(),
}
actual := extractTripleFromIterator(ts, and)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
})
Convey("Can create a predicate iterator", func() {
it = ts.GetTripleIterator("p", ts.GetIdFor("status"))
Convey("Containing the right things", func() {
expected := []string{
graph.MakeTriple("B", "status", "cool", "status_graph").ToString(),
graph.MakeTriple("D", "status", "cool", "status_graph").ToString(),
graph.MakeTriple("G", "status", "cool", "status_graph").ToString(),
}
actual := extractTripleFromIterator(ts, it)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
})
Convey("Can create a provenance iterator", func() {
it = ts.GetTripleIterator("c", ts.GetIdFor("status_graph"))
Convey("Containing the right things", func() {
expected := []string{
graph.MakeTriple("B", "status", "cool", "status_graph").ToString(),
graph.MakeTriple("D", "status", "cool", "status_graph").ToString(),
graph.MakeTriple("G", "status", "cool", "status_graph").ToString(),
}
actual := extractTripleFromIterator(ts, it)
sort.Strings(actual)
sort.Strings(expected)
So(actual, ShouldResemble, expected)
})
Convey("Can be cross-checked", func() {
and := graph.NewAndIterator()
// Order is important
and.AddSubIterator(ts.GetTripleIterator("s", ts.GetIdFor("B")))
and.AddSubIterator(it)
expected := []string{
graph.MakeTriple("B", "status", "cool", "status_graph").ToString(),
}
actual := extractTripleFromIterator(ts, and)
So(actual, ShouldResemble, expected)
})
Convey("Can check against other iterators", func() {
and := graph.NewAndIterator()
// Order is important
and.AddSubIterator(it)
and.AddSubIterator(ts.GetTripleIterator("s", ts.GetIdFor("B")))
expected := []string{
graph.MakeTriple("B", "status", "cool", "status_graph").ToString(),
}
actual := extractTripleFromIterator(ts, and)
So(actual, ShouldResemble, expected)
})
Reset(func() {
it.Reset()
})
})
Reset(func() {
ts.Close()
})
})
}
func TestIterator(t *testing.T) {
var ts *LevelDBTripleStore
Convey("Given a prepared database", t, func() {
tmpDir, _ := ioutil.TempDir(os.TempDir(), "cayley_test")
t.Log(tmpDir)
defer os.RemoveAll(tmpDir)
ok := CreateNewLevelDB(tmpDir)
So(ok, ShouldBeTrue)
ts = NewDefaultLevelDBTripleStore(tmpDir, nil)
ts.AddTripleSet(makeTripleSet())
var it graph.Iterator
Convey("Can create an all iterator for nodes", func() {
it = ts.GetNodesAllIterator()
So(it, ShouldNotBeNil)
Convey("Has basics", func() {
size, accurate := it.Size()
So(size, ShouldBeBetween, 0, 20)
So(accurate, ShouldBeFalse)
So(it.Type(), ShouldEqual, "all")
re_it, ok := it.Optimize()
So(ok, ShouldBeFalse)
So(re_it, ShouldPointTo, it)
})
Convey("Iterates all nodes", func() {
expected := []string{
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"follows",
"status",
"cool",
"status_graph",
}
sort.Strings(expected)
actual := extractValuesFromIterator(ts, it)
sort.Strings(actual)
So(actual, ShouldResemble, expected)
it.Reset()
actual = extractValuesFromIterator(ts, it)
sort.Strings(actual)
So(actual, ShouldResemble, expected)
})
Convey("Contains a couple nodes", func() {
So(it.Check(ts.GetIdFor("A")), ShouldBeTrue)
So(it.Check(ts.GetIdFor("cool")), ShouldBeTrue)
//So(it.Check(ts.GetIdFor("baller")), ShouldBeFalse)
})
Reset(func() {
it.Reset()
})
})
Convey("Can create an all iterator for edges", func() {
it := ts.GetTriplesAllIterator()
So(it, ShouldNotBeNil)
Convey("Has basics", func() {
size, accurate := it.Size()
So(size, ShouldBeBetween, 0, 20)
So(accurate, ShouldBeFalse)
So(it.Type(), ShouldEqual, "all")
re_it, ok := it.Optimize()
So(ok, ShouldBeFalse)
So(re_it, ShouldPointTo, it)
})
Convey("Iterates an edge", func() {
edge_val, _ := it.Next()
triple := ts.GetTriple(edge_val)
set := makeTripleSet()
var string_set []string
for _, t := range set {
string_set = append(string_set, t.ToString())
}
So(triple.ToString(), ShouldBeIn, string_set)
})
Reset(func() {
ts.Close()
})
})
})
}
func TestIterator(t *testing.T) {
tmpDir, err := ioutil.TempDir(os.TempDir(), "cayley_test")
if err != nil {
t.Fatalf("Could not create working directory: %v", err)
}
defer os.RemoveAll(tmpDir)
t.Log(tmpDir)
err = createNewLevelDB(tmpDir, nil)
if err != nil {
t.Fatal("Failed to create LevelDB database.")
}
qs, err := newTripleStore(tmpDir, nil)
if qs == nil || err != nil {
t.Error("Failed to create leveldb TripleStore.")
}
qs.AddTripleSet(makeTripleSet())
var it graph.Iterator
it = qs.NodesAllIterator()
if it == nil {
t.Fatal("Got nil iterator.")
}
size, exact := it.Size()
if size <= 0 || size >= 20 {
t.Errorf("Unexpected size, got:%d expect:(0, 20)", size)
}
if exact {
t.Errorf("Got unexpected exact result.")
}
if typ := it.Type(); typ != graph.All {
t.Errorf("Unexpected iterator type, got:%v expect:%v", typ, graph.All)
}
optIt, changed := it.Optimize()
if changed || optIt != it {
t.Errorf("Optimize unexpectedly changed iterator.")
}
expect := []string{
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"follows",
"status",
"cool",
"status_graph",
}
sort.Strings(expect)
for i := 0; i < 2; i++ {
got := iteratedNames(qs, it)
sort.Strings(got)
if !reflect.DeepEqual(got, expect) {
t.Errorf("Unexpected iterated result on repeat %d, got:%v expect:%v", i, got, expect)
}
it.Reset()
}
for _, pq := range expect {
if !it.Contains(qs.ValueOf(pq)) {
t.Errorf("Failed to find and check %q correctly", pq)
}
}
// FIXME(kortschak) Why does this fail?
/*
for _, pq := range []string{"baller"} {
if it.Contains(qs.ValueOf(pq)) {
t.Errorf("Failed to check %q correctly", pq)
}
}
*/
it.Reset()
it = qs.TriplesAllIterator()
edge, _ := graph.Next(it)
triple := qs.Quad(edge)
set := makeTripleSet()
var ok bool
for _, t := range set {
if t.String() == triple.String() {
ok = true
break
}
}
if !ok {
t.Errorf("Failed to find %q during iteration, got:%q", triple, set)
}
qs.Close()
}
// TestQuadStoreNodesAllIterator iterates the nodes in a fixture and asserts
// the result.
func TestQuadStoreNodesAllIterator(t *testing.T, ctx context.Context) {
qs := ContextQuadStore(ctx)
_, err := WriteFixtureQuadStore(qs, "simple")
if err != nil {
t.Errorf("Unexpected error writing fixures: %v", err)
}
var it graph.Iterator
it = qs.NodesAllIterator()
if it == nil {
t.Fatal("Got nil iterator.")
}
defer it.Reset()
size, _ := it.Size()
if size <= 0 || size >= 20 {
t.Errorf("Unexpected size, got:%d expect:(0, 20)", size)
}
if typ := it.Type(); typ != graph.All {
t.Errorf("Unexpected iterator type, got:%v expect:%v", typ, graph.All)
}
optIt, changed := it.Optimize()
if changed || optIt != it {
t.Errorf("Optimize unexpectedly changed iterator.")
}
expect := []string{
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"follows",
"status",
"cool",
"status_graph",
}
sort.Strings(expect)
for i := 0; i < 2; i++ {
got := IterateNames(qs, it)
sort.Strings(got)
if !reflect.DeepEqual(got, expect) {
t.Errorf("Unexpected iterated result on repeat %d, got:%v expect:%v", i, got, expect)
}
it.Reset()
}
for _, pq := range expect {
if !it.Contains(qs.ValueOf(pq)) {
t.Errorf("Failed to find and check %q correctly", pq)
}
}
for _, pq := range []string{"baller"} {
if it.Contains(qs.ValueOf(pq)) {
t.Errorf("Failed to check %q correctly", pq)
}
}
}
// TestQuadStoreQuadIteratorAnd tests the QuadIterator method of a
// graph.QuadStore by issuing several queries against a fixture.
func TestQuadStoreQuadIteratorAnd(t *testing.T, ctx context.Context) {
qs := ContextQuadStore(ctx)
_, err := WriteFixtureQuadStore(qs, "simple")
if err != nil {
t.Errorf("Unexpected error writing fixures: %v", err)
}
var tests = []struct {
dir quad.Direction
name string
anddir quad.Direction
andname string
expect []quad.Quad
}{
{
quad.Subject, "C",
quad.Any, "",
[]quad.Quad{
{"C", "follows", "B", ""},
{"C", "follows", "D", ""},
},
},
{
quad.Object, "F",
quad.Subject, "B",
[]quad.Quad{
{"B", "follows", "F", ""},
},
},
{
quad.Predicate, "status",
quad.Subject, "G",
[]quad.Quad{
{"G", "status", "cool", "status_graph"},
},
},
{
quad.Label, "status_graph",
quad.Subject, "B",
[]quad.Quad{
{"B", "status", "cool", "status_graph"},
},
},
}
for i, test := range tests {
func() {
it := qs.QuadIterator(test.dir, qs.ValueOf(test.name))
defer it.Reset()
and := iterator.NewAnd(qs)
var other graph.Iterator
if test.anddir == quad.Any {
other = qs.QuadsAllIterator()
} else {
other = qs.QuadIterator(test.anddir, qs.ValueOf(test.andname))
}
defer other.Reset()
and.AddSubIterator(other)
and.AddSubIterator(it)
defer and.Reset()
quads := IterateQuads(qs, and)
if !reflect.DeepEqual(quads, test.expect) {
t.Errorf("Test %d: Failed to get expected results, got:%q expect:%q", i, quads, test.expect)
}
}()
}
}
func TestIterator(t testing.TB, gen DatabaseFunc) {
qs, opts, closer := gen(t)
defer closer()
MakeWriter(t, qs, opts, MakeQuadSet()...)
var it graph.Iterator
it = qs.NodesAllIterator()
require.NotNil(t, it)
size, _ := it.Size()
require.True(t, size > 0 && size < 20, "Unexpected size")
// TODO: leveldb had this test
//if exact {
// t.Errorf("Got unexpected exact result.")
//}
require.Equal(t, graph.All, it.Type(), "Unexpected iterator type")
optIt, changed := it.Optimize()
require.True(t, !changed && optIt == it, "Optimize unexpectedly changed iterator: %v, %T", changed, optIt)
expect := []string{
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"follows",
"status",
"cool",
"status_graph",
}
sort.Strings(expect)
for i := 0; i < 2; i++ {
got := IteratedRawStrings(t, qs, it)
sort.Strings(got)
require.Equal(t, expect, got, "Unexpected iterated result on repeat %d", i)
it.Reset()
}
for _, pq := range expect {
require.True(t, it.Contains(qs.ValueOf(quad.Raw(pq))), "Failed to find and check %q correctly", pq)
}
// FIXME(kortschak) Why does this fail?
/*
for _, pq := range []string{"baller"} {
if it.Contains(qs.ValueOf(pq)) {
t.Errorf("Failed to check %q correctly", pq)
}
}
*/
it.Reset()
it = qs.QuadsAllIterator()
optIt, changed = it.Optimize()
require.True(t, !changed && optIt == it, "Optimize unexpectedly changed iterator: %v, %T", changed, optIt)
require.True(t, graph.Next(it))
q := qs.Quad(it.Result())
require.Nil(t, it.Err())
require.True(t, q.IsValid(), "Invalid quad returned: %q", q)
set := MakeQuadSet()
var ok bool
for _, e := range set {
if e.String() == q.String() {
ok = true
break
}
}
require.True(t, ok, "Failed to find %q during iteration, got:%q", q, set)
}