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h5g_test.go
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h5g_test.go
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package hdf5
import (
"os"
"testing"
)
func TestGroup(t *testing.T) {
f, err := CreateFile(fname, F_ACC_TRUNC)
if err != nil {
t.Fatalf("CreateFile failed: %s", err)
}
defer os.Remove(fname)
defer f.Close()
g1, err := f.CreateGroup("foo")
if err != nil {
t.Fatalf("couldn't create group: %s", err)
}
if *g1.File() != *f {
t.Fatal("wrong file for group")
}
if g1.Name() != "/foo" {
t.Errorf("wrong Name for group: want %q, got %q", "/foo", g1.Name())
}
g2, err := g1.CreateGroup("bar")
if err != nil {
t.Fatalf("couldn't create group: %s", err)
}
if *g2.File() != *f {
t.Fatal("wrong file for group")
}
if g2.Name() != "/foo/bar" {
t.Errorf("wrong Name for group: want %q, got %q", "/foo/bar", g1.Name())
}
g3, err := g2.CreateGroup("baz")
if err != nil {
t.Fatalf("couldn't create group: %s", err)
}
if *g3.File() != *f {
t.Fatal("wrong file for group")
}
if g3.Name() != "/foo/bar/baz" {
t.Errorf("wrong Name for group: want %q, got %q", "/foo/bar/bar", g1.Name())
}
if nObjs, err := g2.NumObjects(); err != nil {
t.Fatal(err)
} else if nObjs != 1 {
t.Errorf("wrong number of objects in group: want 1, got %d", nObjs)
}
err = g1.Close()
if err != nil {
t.Error(err)
}
err = g2.Close()
if err != nil {
t.Error(err)
}
err = g3.Close()
if err != nil {
t.Error(err)
}
g2, err = f.OpenGroup("/foo/bar")
if err != nil {
t.Fatal(err)
}
g3, err = g2.OpenGroup("baz")
if err != nil {
t.Fatal(err)
}
_, err = g3.OpenGroup("bs")
if err == nil {
t.Fatal("expected error on opening invalid group")
}
data := 5
dtype, err := NewDatatypeFromValue(data)
if err != nil {
t.Fatal(err)
}
dims := []uint{1}
dspace, err := CreateSimpleDataspace(dims, dims)
if err != nil {
t.Fatal(err)
}
dset, err := g3.CreateDataset("dset", dtype, dspace)
if err != nil {
t.Fatal(err)
}
dset2, err := g3.OpenDataset("dset")
if dset.Name() != dset2.Name() {
t.Error("expected dataset names to be equal")
}
dset2, err = g3.OpenDataset("bs")
if err == nil {
t.Errorf("opened dataset that was never created: %v", dset2)
}
}