def test_monthlychart_set_min_max_by_index():
"""Test the set_minimum_by_index amd set_maximum_by_index methods."""
header = Header(Temperature(), 'C', AnalysisPeriod())
values = [i for i in range(12)]
date_t = list(range(1, 13))
data_coll = MonthlyCollection(header, values, date_t)
header2 = Header(RelativeHumidity(), '%', AnalysisPeriod())
values2 = [i for i in range(10, 70, 5)]
data_coll2 = MonthlyCollection(header2, values2, date_t)
l_par = LegendParameters(min=-20, max=40)
l_par.decimal_count = 0
month_chart = MonthlyChart([data_coll, data_coll2], legend_parameters=l_par)
assert month_chart.y_axis_labels1[0] == '-20'
assert month_chart.y_axis_labels1[-1] == '40'
month_chart.set_minimum_by_index(0, 1)
assert month_chart.y_axis_labels2[0] == '0'
month_chart.set_maximum_by_index(100, 1)
assert month_chart.y_axis_labels2[-1] == '100'
# set default values for the chart dimensions
z_val = _base_pt_.Z if _base_pt_ is not None else 0
z_val_tol = z_val + tolerance
_base_pt_ = to_point2d(_base_pt_) if _base_pt_ is not None else Point2D()
_x_dim_ = _x_dim_ if _x_dim_ is not None else 10.0 / conversion_to_meters()
_y_dim_ = _y_dim_ if _y_dim_ is not None else 40.0 / conversion_to_meters()
stack_ = stack_ if stack_ is not None else False
percentile_ = percentile_ if percentile_ is not None else 34.0
lpar = legend_par_[0] if len(legend_par_) != 0 else None
# create the monthly chart object and get the main pieces of geometry
month_chart = MonthlyChart(_data, lpar, _base_pt_, _x_dim_, _y_dim_,
stack_, percentile_)
if len(legend_par_) > 1:
if legend_par_[1].min is not None:
month_chart.set_minimum_by_index(legend_par_[1].min, 1)
if legend_par_[1].max is not None:
month_chart.set_maximum_by_index(legend_par_[1].max, 1)
# get the main pieces of geometry
d_meshes = month_chart.data_meshes
if d_meshes is not None:
data_mesh = [from_mesh2d(msh, z_val_tol) for msh in d_meshes]
d_lines = month_chart.data_polylines
if d_lines is not None:
data_lines = [from_polyline2d(lin, z_val_tol) for lin in d_lines]
borders = [from_polyline2d(month_chart.chart_border, z_val)] + \
[from_linesegment2d(line, z_val) for line in month_chart.y_axis_lines] + \
[from_linesegment2d(line, z_val_tol) for line in month_chart.month_lines]
legend = legend_objects(month_chart.legend)