def test_write_single_item(tmpdir):
filename = os.path.join(tmpdir.dirname, "random.dfs1")
data = []
d = np.random.random([100, 3])
data.append(d)
items = [
ItemInfo("testing water level", EUMType.Water_Level, EUMUnit.meter)
]
title = "test dfs1"
dfs = Dfs1()
dfs.write(
filename=filename,
data=data,
start_time=datetime.datetime(2012, 1, 1),
dt=12,
dx=100,
items=items,
title=title,
)
assert True
def test_read_item_names_not_in_dataset_fails():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
with pytest.raises(Exception):
dfs.read(["NOTAREALVARIABLE"])
def test_repr_empty():
dfs = Dfs1()
text = repr(dfs)
assert "Dfs1" in text
def test_write_some_time_steps_new_file(tmpdir):
outfilename = os.path.join(tmpdir.dirname, "subset.dfs1")
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
ds = dfs.read(time_steps=[0, 1, 2, 3, 4, 5])
data = ds.data[0]
assert data.shape == (6, 3) # time, x
dfs.write(outfilename, ds)
dfsnew = Dfs1(outfilename)
dsnew = dfsnew.read()
assert dsnew["testing water level"].shape == (6, 3)
def test_read_time_steps():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
ds = dfs.read(time_steps=[0, 1, 2, 3, 4, 5])
data = ds.data[0]
assert data.shape == (6, 3) # time, x
def test_read_item_names():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
ds = dfs.read(["testing water level"])
data = ds.data[0]
assert data.shape == (100, 3) # time, x
def test_read():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
ds = dfs.read([0])
data = ds.data[0]
assert data.shape == (100, 3) # time, x
def test_repr():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
text = repr(dfs)
assert "Dfs1" in text
assert "Items" in text
assert "dx" in text
def test_read_names_access():
filename = r"tests/testdata/random.dfs1"
dfs = Dfs1(filename)
res = dfs.read([0])
data = res.data
item = data[0]
time = res.time
assert item.shape == (100, 3) # time, x
assert len(time) == 100
assert res.items[0].name == "testing water level"
assert res.items[0].type == EUMType.Water_Level
assert res.items[0].unit == EUMUnit.meter
def test_simple_write(tmpdir):
filename = os.path.join(tmpdir.dirname, "simple.dfs1")
data = []
nt = 100
nx = 20
d = np.random.random([nt, nx])
data.append(d)
dfs = Dfs1()
# write a file, without specifying dates, names, units etc.
# Proably not so useful
dfs.write(filename=filename, data=data)
assert True
def test_write():
filename1 = r"tests/testdata/random.dfs1"
filename2 = r"tests/testdata/random_for_write.dfs1"
copyfile(filename1, filename2)
# read contents of original file
dfs = Dfs1()
res1 = dfs.read(filename1, [0])
# overwrite
res1.data[0] = -2 * res1.data[0]
dfs.write(filename2, res1.data)
# read contents of manipulated file
res1 = dfs.read(filename1, [0])
res2 = dfs.read(filename2, [0])
data1 = res1.data[0]
data2 = res2.data[0]
assert data2[2, 1] == -2 * data1[2, 1]
# clean
os.remove(filename2)
def test_filenotexist():
with pytest.raises(FileNotFoundError):
Dfs1("file_that_does_not_exist.dfs1")
