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Add test case for Graph ByParent().

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This commit is contained in:
Brandon Liu 2013-08-11 01:24:21 -07:00
parent 025c759e44
commit 02b8d14bdd
1 changed files with 39 additions and 0 deletions
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39
graph_test.go
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@ -234,6 +234,45 @@ func TestDelete(t *testing.T) {
assertNImages(graph, t, 1)
}
func TestByParent(t *testing.T) {
archive1, _ := fakeTar()
archive2, _ := fakeTar()
archive3, _ := fakeTar()
graph := tempGraph(t)
defer os.RemoveAll(graph.Root)
parentImage := &Image{
ID: GenerateID(),
Comment: "parent",
Created: time.Now(),
Parent: "",
}
childImage1 := &Image{
ID: GenerateID(),
Comment: "child1",
Created: time.Now(),
Parent: parentImage.ID,
}
childImage2 := &Image{
ID: GenerateID(),
Comment: "child2",
Created: time.Now(),
Parent: parentImage.ID,
}
_ = graph.Register(nil, archive1, parentImage)
_ = graph.Register(nil, archive2, childImage1)
_ = graph.Register(nil, archive3, childImage2)
byParent, err := graph.ByParent()
if err != nil {
t.Fatal(err)
}
numChildren := len(byParent[parentImage.ID])
if numChildren != 2 {
t.Fatalf("Expected 2 children, found %d", numChildren)
}
}
func assertNImages(graph *Graph, t *testing.T, n int) {
if images, err := graph.All(); err != nil {
t.Fatal(err)