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h5f_test.go
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h5f_test.go
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package hdf5
import (
"os"
"testing"
)
func TestFile(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()
if fileName := f.FileName(); fileName != fname {
t.Fatalf("FileName() have %v, want %v", fileName, fname)
}
// The file is also the root group
if name := f.Name(); name != "/" {
t.Fatalf("Name() have %v, want %v", name, fname)
}
if err := f.Flush(F_SCOPE_GLOBAL); err != nil {
t.Fatalf("Flush() failed: %s", err)
}
if !IsHDF5(fname) {
t.Fatalf("IsHDF5 returned false")
}
if n, err := f.NumObjects(); err != nil {
t.Fatalf("NumObjects failed: %s", err)
} else if n != 0 {
t.Fatalf("empty file had %d objects", n)
}
if _, err := f.ObjectNameByIndex(0); err == nil {
t.Fatalf("expected error")
}
f2 := f.File()
fName := f.FileName()
f2Name := f2.FileName()
if fName != f2Name {
t.Fatalf("f2 FileName() have %v, want %v", f2Name, fName)
}
// Test a Group
groupName := "test"
g, err := f.CreateGroup(groupName)
if err != nil {
t.Fatalf("CreateGroup() failed: %s", err)
}
if name := g.Name(); name != "/"+groupName {
t.Fatalf("Group Name() have %v, want /%v", name, groupName)
}
g2, err := f.OpenGroup(groupName)
if err != nil {
t.Fatalf("OpenGroup() failed: %s", err)
}
if name := g2.Name(); name != "/"+groupName {
t.Fatalf("Group Name() have %v, want /%v", name, groupName)
}
if n, err := f.NumObjects(); err != nil {
t.Fatalf("NumObjects failed: %s", err)
} else if n != 1 {
t.Fatalf("NumObjects: got %d, want %d", n, 1)
}
if name, err := f.ObjectNameByIndex(0); err != nil {
t.Fatalf("ObjectNameByIndex failed: %s", err)
} else if name != groupName {
t.Fatalf("ObjectNameByIndex: got %q, want %q", name, groupName)
}
if _, err := f.ObjectNameByIndex(1); err == nil {
t.Fatalf("expected error")
}
// Test a Dataset
ds, err := CreateDataspace(S_SCALAR)
if err != nil {
t.Fatalf("CreateDataspace failed: %s", err)
}
dsetName := "test_dataset"
dset, err := f.CreateDataset(dsetName, T_NATIVE_INT, ds)
if err != nil {
t.Fatalf("CreateDataset failed: %s", err)
}
if name := dset.Name(); name != "/"+dsetName {
t.Fatalf("Dataset Name() have %v, want /%v", name, dsetName)
}
dFile := dset.File()
if dFile.Name() != f.Name() {
t.Fatalf("Dataset File() have %v, want %v", dFile.Name(), f.Name())
}
if n, err := f.NumObjects(); err != nil {
t.Fatalf("NumObjects failed: %s", err)
} else if n != 2 {
t.Fatalf("NumObjects: got %d, want %d", n, 1)
}
for i, n := range []string{groupName, dsetName} {
if name, err := f.ObjectNameByIndex(uint(i)); err != nil {
t.Fatalf("ObjectNameByIndex failed: %s", err)
} else if name != n {
t.Fatalf("ObjectNameByIndex: got %q, want %q", name, groupName)
}
}
}
func TestClosedFile(t *testing.T) {
f, err := CreateFile(fname, F_ACC_TRUNC)
if err != nil {
t.Fatalf("CreateFile failed: %s", err)
}
fName := f.Name()
f2 := f.File()
f.Close()
f2Name := f2.FileName()
if f2Name != fname {
t.Fatalf("f2 FileName() have %v, want %v", f2Name, fName)
}
f2.Close()
os.Remove(fname)
f3 := f.File()
if f3 != nil {
t.Fatalf("expected file to be nil")
}
}