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test that NodeHasLabel in TestGetOrCreateNode for creation #63

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test that NodeHasLabel in TestGetOrCreateNode for creation #63

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c1670df
feat(node): add HasLabel func
azr Jan 7, 2015
03b717b
test(node): test node HasLabel in TestGetOrCreateNode for creation
azr Jan 7, 2015
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14 changes: 14 additions & 0 deletions node.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"errors"
"strconv"
"strings"
"sort"
)

// CreateNode creates a Node in the database.
Expand Down Expand Up @@ -256,6 +257,19 @@ func (n *Node) SetLabels(labels []string) error {
return nil // Success
}


func (n *Node) HasLabel(label string) bool {
labels, err := n.Labels()
if err != nil || len(labels) == 0 {
return false
}

sort.Strings(labels)
pos := sort.SearchStrings(labels, label)

return len(labels) != pos && labels[pos] == label
}

// NodesByLabel gets all nodes with a given label.
func (db *Database) NodesByLabel(label string) ([]*Node, error) {
uri := join(db.Url, "label", label, "nodes")
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3 changes: 3 additions & 0 deletions node_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,9 @@ func TestGetOrCreateNode(t *testing.T) {
if !created {
t.Fatal("Failed to create unique node")
}
if !n0.HasLabel(label) {
t.Fatal("Label was not applied to just created node.")
}
check0, err := n0.Properties()
if err != nil {
t.Fatal(err)
Expand Down