def test_hdf5writer_dict():
f = Frame()
f.n = {1: 1}
f.writer = writers.hdf5writer()
with pytest.raises(NotImplementedError):
f.writeoutput(0)
shutil.rmtree(f.writer.datadir)
def test_hdf5writer_skip():
f = Frame()
f.writer = writers.hdf5writer()
f.addfield("x", 0., save=False)
f.writeoutput(0)
with pytest.raises(KeyError):
x = f.writer.read.sequence("x")
shutil.rmtree(f.writer.datadir)
def test_hdf5writer_list():
f = Frame()
f.n = [1, 1]
f.writer = writers.hdf5writer()
f.writeoutput(0)
f.writeoutput(1)
data0000 = f.writer.read.output(0)
assert np.all(data0000.n == [1, 1])
n = f.writer.read.sequence("n")
assert np.all(n == [[1, 1], [1, 1]])
data = f.writer.read.all()
assert np.all(data.n == [[1, 1], [1, 1]])
shutil.rmtree(f.writer.datadir)
def test_hdf5writer_single_value_array():
f = Frame()
f.n = np.array(1)
f.writer = writers.hdf5writer()
f.writeoutput(0)
f.writeoutput(1)
data0000 = f.writer.read.output(0)
assert data0000.n == 1
n = f.writer.read.sequence("n")
assert np.all(n == [1, 1])
data = f.writer.read.all()
assert np.all(data.n == [1, 1])
shutil.rmtree(f.writer.datadir)
def test_hdf5writer_none():
f = Frame()
f.n = None
f.writer = writers.hdf5writer()
with pytest.raises(ValueError):
f.writeoutput(0)
f.n = [1, None]
with pytest.raises(ValueError):
f.writeoutput(1)
f.n = (1, None)
with pytest.raises(ValueError):
f.writeoutput(2)
shutil.rmtree(f.writer.datadir)
def test_simple_read_files():
f = Frame()
f.addgroup("A")
f.A.addfield("B", [0., 0.])
f.addfield("Y", 1.)
def dYdx(f, x, Y):
return -Y
f.Y.differentiator = dYdx
f.addintegrationvariable("x", 0.)
def dx(f):
return 1.
f.x.updater = dx
f.x.snapshots = [1.]
f.integrator = Integrator(f.x)
f.integrator.instructions = [Instruction(schemes.expl_1_euler, f.Y)]
f.writer = writers.hdf5writer()
f.run()
x = f.writer.read.sequence("x")
assert np.all(x == [0., 1.])
Y = f.writer.read.sequence("Y")
assert np.all(Y == [1., 0.])
B = f.writer.read.sequence("A.B")
assert np.all(B == [0., 0.])
with pytest.raises(TypeError):
f.writer.read.sequence(1)
data = f.writer.read.all()
assert np.all(data.x == [0., 1.])
assert np.all(data.Y == [1., 0.])
assert np.all(data.A.B == [0., 0.])
data0000 = f.writer.read.output(0)
assert np.all(data0000.x == 0.)
assert np.all(data0000.Y == 1.)
assert np.all(data0000.A.B == 0.)
with pytest.raises(RuntimeError):
f.writer.read.output(2)
shutil.rmtree(f.writer.datadir)
with pytest.raises(RuntimeError):
f.writer.datadir = "temp"
f.writer.read.all()
with pytest.raises(RuntimeError):
f.writer.read.sequence("x")
f.writer.datadir = "data"
def test_hdf5writer_strings():
string = "test"
# When read from HDF5 the string will be a byte literal
string_cmpr = string.encode()
f = Frame()
f.addfield("s", string)
f.t = string
f.writer = writers.hdf5writer()
f.writeoutput(0)
f.writeoutput(1)
data0000 = f.writer.read.output(0)
assert data0000.s[0] == string_cmpr
assert data0000.t == string_cmpr
s = f.writer.read.sequence("s")
assert np.all(s == [string_cmpr, string_cmpr])
t = f.writer.read.sequence("t")
assert np.all(t == [string_cmpr, string_cmpr])
data = f.writer.read.all()
assert np.all(data.s == [string_cmpr, string_cmpr])
assert np.all(data.s == [string_cmpr, string_cmpr])
shutil.rmtree(f.writer.datadir)