def test_compute__multiple_df(global_mock_summary_df,
global_mock_aggregate_summary_dfs):
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=False)
inspector.hasmultiple_dfs = True
report_value = global_mock_summary_df
inspector.agg_summary_dfs = global_mock_aggregate_summary_dfs
expected_result = pd.DataFrame([[1, 2, 3, 2], [2, 3, 3, 3]],
columns=[
'cluster_id', 'column_a',
'column_a_sample_1',
'column_a_sample_2'
])
def mock_compute_report(self):
self.agg_summary_df = report_value
with patch.object(InspectorShap, '_compute_report',
mock_compute_report):
output = inspector.compute()
# Check output and side effects
pd.testing.assert_frame_equal(output, expected_result)
pd.testing.assert_frame_equal(inspector.cluster_report,
expected_result)
pd.testing.assert_frame_equal(inspector.agg_summary_df, report_value)
def test_fit__multiple_df(
global_X,
global_y,
global_predicted_proba,
global_X_shap,
global_clusters,
global_Xs,
global_ys,
global_predicted_probas,
global_clusters_eval_set,
global_X_shaps,
):
inspector = InspectorShap(model=MockModel(), algotype="kmeans")
input_eval_set = [(global_Xs[0], global_ys[0]),
(global_Xs[1], global_ys[1])]
input_sample_names = ["set1", "set2"]
input_X = global_X
input_y = global_y
with patch.object(InspectorShap,
"perform_fit_calc") as mock_perform_fit_calc:
with patch.object(
InspectorShap,
"init_eval_set_report_variables") as mock_init_variables:
mock_perform_fit_calc.side_effect = [
(global_y, global_predicted_proba, global_X_shap,
global_clusters),
(global_ys[0], global_predicted_probas[0],
global_X_shaps[0], global_clusters_eval_set[0]),
(global_ys[1], global_predicted_probas[1],
global_X_shaps[1], global_clusters_eval_set[1]),
]
inspector.fit(X=input_X,
y=input_y,
eval_set=input_eval_set,
sample_names=input_sample_names)
mock_init_variables.assert_called_once()
assert inspector.hasmultiple_dfs is True
assert inspector.set_names is input_sample_names
assert inspector.y.equals(global_y)
assert inspector.predicted_proba.equals(global_predicted_proba)
assert inspector.X_shap.equals(global_X_shap)
assert inspector.clusters.equals(global_clusters)
assert all([
a.equals(b)
for a, b in zip(inspector.clusters_list, global_clusters_eval_set)
])
assert all(
[a.equals(b) for a, b in zip(inspector.X_shaps, global_X_shaps)])
assert all([
a.equals(b) for a, b in zip(inspector.predicted_probas,
global_predicted_probas)
])
assert all([a.equals(b) for a, b in zip(inspector.ys, global_ys)])
assert input_sample_names is inspector.set_names
def test_compute__report_done():
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=False)
report_value = pd.DataFrame([[1, 2], [2, 3]],
columns=['cluster_id', 'column_a'])
inspector.cluster_report = report_value
pd.testing.assert_frame_equal(inspector.compute(), report_value)
def test_slice_cluster_eval_sets__multiple_df(global_X_shaps, global_ys,
global_predicted_probas,
global_summary_dfs):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
inspector.hasmultiple_dfs = True
inspector.X_shaps = X_shaps = global_X_shaps
inspector.ys = ys = global_ys
inspector.predicted_probas = predicted_probas = global_predicted_probas
inspector.summary_dfs = summary_dfs = global_summary_dfs
target_row = [0]
target_cluster_id = 1
target_complementary = False
target_output = \
[[pd.DataFrame([[0, 3, 0]], columns=['shap_1', 'shap_2', 'shap_3']), pd.Series([0]), pd.Series([0.1])],
[pd.DataFrame([[0, 2, 0]], columns=['shap_1', 'shap_2', 'shap_3']), pd.Series([1]), pd.Series([0.4])]]
with patch.object(InspectorShap,
'slice_cluster') as mock_slice_cluster:
# Setting multiple outputs
mock_slice_cluster.side_effect = [
(X_shaps[0].iloc[target_row], ys[0].iloc[target_row],
predicted_probas[0].iloc[target_row]),
(X_shaps[1].iloc[target_row], ys[1].iloc[target_row],
predicted_probas[1].iloc[target_row])
]
output = inspector.slice_cluster_eval_set(
target_cluster_id, complementary=target_complementary)
# Check if inputs are correct at each call
for call_index, call in enumerate(
mock_slice_cluster.call_args_list):
# On the position 1 of call there are kwargs
assert call[1]['cluster_id'] == target_cluster_id
assert call[1]['complementary'] == target_complementary
pd.testing.assert_frame_equal(call[1]['summary_df'],
summary_dfs[call_index])
pd.testing.assert_frame_equal(call[1]['X_shap'],
X_shaps[call_index])
pd.testing.assert_series_equal(call[1]['predicted_proba'],
predicted_probas[call_index])
pd.testing.assert_series_equal(call[1]['y'], ys[call_index])
# Check lengths of lists
assert len(output) is len(target_output)
# Go over the output and check each element
for index, current_output in enumerate(output):
pd.testing.assert_frame_equal(target_output[index][0],
current_output[0])
pd.testing.assert_series_equal(target_output[index][1],
current_output[1])
pd.testing.assert_series_equal(target_output[index][2],
current_output[2])
def test_compute_probabilities(global_X):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
input_X = global_X
model_probas = np.array([[0.2, 0.8], [0.7, 0.3], [0.7,
0.3], [0.3, 0.7],
[0.2, 0.8], [0.3, 0.7], [0.7, 0.3],
[0.5, 0.5]])
expected_output = np.array([0.8, 0.3, 0.3, 0.7, 0.8, 0.7, 0.3, 0.5])
with patch.object(MockModel, 'predict_proba') as mock_predict_proba:
mock_predict_proba.return_value = model_probas
np.testing.assert_array_equal(
expected_output, inspector.compute_probabilities(input_X))
def test_get_cluster_mask(global_summary_df):
df = global_summary_df
cluster_id_1 = 1
cluster_id_2 = [1, 4]
expected_indexes_1 = [0, 4]
expected_indexes_2 = [0, 3, 4, 7]
pd.testing.assert_frame_equal(
df.iloc[expected_indexes_1],
df[InspectorShap.get_cluster_mask(df, cluster_id_1)])
pd.testing.assert_frame_equal(
df.iloc[expected_indexes_2],
df[InspectorShap.get_cluster_mask(df, cluster_id_2)])
def test_predict_clusters__inspector_shap(mock_clusterer, global_small_df):
mock_clusterer.predict.return_value = [1, 0]
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=False)
inspector.clusterer = mock_clusterer
inspector.fitted = True
X = global_small_df
# Check if the output is correct, as should be according to MockClusterer
assert inspector.predict_clusters(X) == [1, 0]
# Check if the df has not been modified by the prediction
pd.testing.assert_frame_equal(X, global_small_df)
def test_fit_compute(global_X, global_aggregate_summary_df):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
input_X = global_X
expected_output = global_aggregate_summary_df
with patch.object(InspectorShap, 'fit') as mock_fit:
with patch.object(InspectorShap, 'compute') as mock_compute:
mock_compute.return_value = global_aggregate_summary_df
output = inspector.fit_compute(input_X)
# Check if fit called with input X
pd.testing.assert_frame_equal(mock_fit.call_args[0][0],
input_X)
# Check if the returned value correct
pd.testing.assert_frame_equal(expected_output, output)
def test_init_inspector():
mock_model = MockModel()
inspector = InspectorShap(model=mock_model,
algotype='kmeans',
confusion_metric='proba',
normalize_probability=True,
cluster_probability=True)
assert inspector.model is mock_model
assert inspector.isinspected is False
assert inspector.hasmultiple_dfs is False
assert inspector.normalize_proba is True
assert inspector.cluster_probabilities is True
assert inspector.agg_summary_df is None
assert inspector.set_names is None
assert inspector.confusion_metric is 'proba'
assert inspector.cluster_report is None
assert inspector.y is None
assert inspector.predicted_proba is None
assert inspector.X_shap is None
assert inspector.clusters is None
assert inspector.algotype is 'kmeans'
assert inspector.fitted is False
assert inspector.X_shaps == list()
assert inspector.clusters_list == list()
assert inspector.ys == list()
assert inspector.predicted_probas == list()
def test_fit_clusters__inspector_shap(mock_clusterer, global_small_df):
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=False)
inspector.clusterer = mock_clusterer
X = global_small_df
inspector.fit_clusters(X)
# Check if has been called with correct argument
mock_clusterer.fit.assert_called_once()
pd.testing.assert_frame_equal(mock_clusterer.fit.call_args[0][0], X)
# Check if it has not been modified
pd.testing.assert_frame_equal(X, global_small_df)
# Check if fitted flag has been changed correctly
assert inspector.fitted is True
def test_aggregate_summary_df(global_summary_df,
global_aggregate_summary_df):
df = global_summary_df
expected_output = global_aggregate_summary_df
pd.set_option('display.max_columns', None)
pd.testing.assert_frame_equal(InspectorShap.aggregate_summary_df(df),
expected_output)
def test_slice_cluster_inputs_complementary(global_summary_df,
global_X_shap, global_y,
global_predicted_proba):
inspector = InspectorShap(model=MockModel(), algotype="kmeans")
summary = global_summary_df
X_shap = global_X_shap
y = global_y
predicted_proba = global_predicted_proba
target_cluster_id = 1
correct_mask = np.array(
[False, True, True, True, False, True, True, True])
returned_mask = np.logical_not(correct_mask)
inspector.get_cluster_mask.return_value = correct_mask
assert inspector.cluster_report is None
def mock_compute(self):
self.cluster_report = summary
with patch.object(InspectorShap, "compute", mock_compute):
with patch.object(InspectorShap,
"get_cluster_mask") as mock_get_cluster_mask:
mock_get_cluster_mask.return_value = returned_mask
shap_out, y_out, pred_out = inspector.slice_cluster(
target_cluster_id,
summary_df=summary,
X_shap=X_shap,
y=y,
predicted_proba=predicted_proba,
complementary=True,
)
# Ensure mocked_get_cluster_mask called with correct arguments
mock_get_cluster_mask.assert_called_once()
pd.testing.assert_frame_equal(
mock_get_cluster_mask.call_args[0][0], summary)
assert mock_get_cluster_mask.call_args[0][
1] == target_cluster_id
# Check outputs and side effects
pd.testing.assert_frame_equal(shap_out, X_shap[correct_mask])
pd.testing.assert_series_equal(y_out, y[correct_mask])
pd.testing.assert_series_equal(pred_out, predicted_proba[correct_mask])
pd.testing.assert_frame_equal(inspector.cluster_report, summary)
def test_compute__single_df(global_mock_summary_df):
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=False)
inspector.hasmultiple_dfs = False
report_value = global_mock_summary_df
def mock_compute_report(self):
self.agg_summary_df = report_value
with patch.object(InspectorShap, '_compute_report',
mock_compute_report):
output = inspector.compute()
# Check output and side effects
pd.testing.assert_frame_equal(output, report_value)
pd.testing.assert_frame_equal(inspector.cluster_report, report_value)
pd.testing.assert_frame_equal(inspector.agg_summary_df, report_value)
def test_compute_report_single_df(global_clusters, global_y,
global_predicted_proba,
global_summary_df,
global_aggregate_summary_df):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
inspector.hasmultiple_dfs = False
inspector.normalize_proba = target_normalize = False
inspector.clusters = input_clust = global_clusters
inspector.y = input_y = global_y
inspector.predicted_proba = input_predicted_proba = global_predicted_proba
target_summary_df = global_summary_df
aggregated_summary = global_aggregate_summary_df
with patch.object(InspectorShap,
'create_summary_df') as mock_create_summary_df:
with patch.object(
InspectorShap,
'aggregate_summary_df') as mock_aggregate_summary_df:
mock_create_summary_df.return_value = target_summary_df
mock_aggregate_summary_df.return_value = aggregated_summary
inspector._compute_report()
#check if the methods were called with correct arguments
pd.testing.assert_frame_equal(
mock_aggregate_summary_df.call_args[0][0],
target_summary_df)
pd.testing.assert_series_equal(
mock_create_summary_df.call_args[0][0], input_clust)
pd.testing.assert_series_equal(
mock_create_summary_df.call_args[0][1], input_y)
pd.testing.assert_series_equal(
mock_create_summary_df.call_args[0][2],
input_predicted_proba)
assert mock_create_summary_df.call_args[1][
'normalize'] == target_normalize
# Check if the function correctly stored variables
pd.testing.assert_frame_equal(inspector.agg_summary_df,
aggregated_summary)
pd.testing.assert_frame_equal(inspector.summary_df, target_summary_df)
def test_perform_fit_calc(global_X, global_y, global_predicted_proba,
global_X_shap, global_clusters):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
inspector.model = input_model = MockModel()
input_X = global_X
input_y = global_y
input_predicted_proba = global_predicted_proba
values_probabilities = input_predicted_proba.tolist()
def mock_fit_clusters(self, X_shap):
inspector.fitted = True
with patch.object(InspectorShap,
'assert_is_dataframe') as mock_assert_is_dataframe:
with patch.object(InspectorShap,
'assert_is_series') as mock_assert_is_series:
with patch.object(
InspectorShap,
'compute_probabilities') as mock_compute_probabilities:
with patch('probatus.interpret._shap_helpers.shap_to_df'
) as mock_shap_to_df:
with patch.object(InspectorShap, 'fit_clusters',
mock_fit_clusters):
with patch.object(InspectorShap, 'predict_clusters'
) as mock_predict_clusters:
mock_assert_is_dataframe.return_value = input_X
mock_assert_is_series.return_value = input_y
mock_compute_probabilities.return_value = values_probabilities
mock_shap_to_df.return_value = global_X_shap
mock_predict_clusters.return_value = global_clusters.tolist(
)
out_y, out_predicted_proba, out_X_shap, out_clusters = \
inspector.perform_fit_calc(input_X, input_y, fit_clusters=True)
pd.testing.assert_series_equal(out_y, input_y)
pd.testing.assert_series_equal(out_predicted_proba,
input_predicted_proba)
pd.testing.assert_frame_equal(out_X_shap, global_X_shap)
pd.testing.assert_series_equal(out_clusters, global_clusters)
assert inspector.fitted is True
def test_compute_report_multiple_df(
global_clusters, global_y, global_predicted_proba,
global_summary_df, global_aggregate_summary_df, global_summary_dfs,
global_ys, global_predicted_probas,
global_aggregate_summary_dfs_eval_set):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
inspector.hasmultiple_dfs = True
inspector.normalize_proba = target_normalize = False
inspector.clusters = input_clust = global_clusters
inspector.y = input_y = global_y
inspector.predicted_proba = input_predicted_proba = global_predicted_proba
inspector.ys = input_ys = global_ys
inspector.predicted_probas = input_predicted_probas = global_predicted_probas
target_summary_df = global_summary_df
target_summary_dfs = global_summary_dfs
aggregated_summary_df = global_aggregate_summary_df
aggregated_summary_dfs = global_aggregate_summary_dfs_eval_set
with patch.object(InspectorShap,
'create_summary_df') as mock_create_summary_df:
with patch.object(
InspectorShap,
'aggregate_summary_df') as mock_aggregate_summary_df:
# Set returns for each call of methods
mock_create_summary_df.side_effect = [
target_summary_df, target_summary_dfs[0],
target_summary_dfs[1]
]
mock_aggregate_summary_df.side_effect = [
aggregated_summary_df, aggregated_summary_dfs[0],
aggregated_summary_dfs[1]
]
inspector._compute_report()
assert inspector.agg_summary_df.equals(aggregated_summary_df)
assert inspector.summary_df.equals(target_summary_df)
for index, item in inspector.agg_summary_dfs:
assert item.equals(aggregated_summary_dfs[index])
for index, item in inspector.summary_dfs:
assert item.equals(target_summary_dfs[index])
def test_compute__multiple_df_set_names(global_mock_summary_df,
global_mock_aggregate_summary_dfs):
inspector = InspectorShap(model=MockModel(),
algotype="kmeans",
cluster_probability=False)
inspector.hasmultiple_dfs = True
inspector.set_names = ["suf1", "suf2"]
report_value = global_mock_summary_df
inspector.agg_summary_dfs = global_mock_aggregate_summary_dfs
expected_result = pd.DataFrame([[1, 2, 3, 2], [2, 3, 3, 3]],
columns=[
"cluster_id", "column_a",
"column_a_suf1", "column_a_suf2"
])
def mock_compute_report(self):
self.agg_summary_df = report_value
with patch.object(InspectorShap, "_compute_report",
mock_compute_report):
output = inspector.compute()
# Check output and side effects
pd.testing.assert_frame_equal(output, expected_result)
pd.testing.assert_frame_equal(inspector.cluster_report,
expected_result)
pd.testing.assert_frame_equal(inspector.agg_summary_df, report_value)
def test_slice_cluster_no_inputs_not_complementary(global_summary_df,
global_X_shap, global_y,
global_predicted_proba):
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
summary = global_summary_df
inspector.summary_df = summary
inspector.cluster_report = summary
inspector.X_shap = X_shap = global_X_shap
inspector.y = y = global_y
inspector.predicted_proba = predicted_proba = global_predicted_proba
target_cluster_id = 1
correct_mask = returned_mask = [
True, False, False, False, True, False, False, False
]
inspector.get_cluster_mask.return_value = correct_mask
with patch.object(InspectorShap, 'compute') as mocked_compute:
with patch.object(InspectorShap,
'get_cluster_mask') as mock_get_cluster_mask:
mock_get_cluster_mask.return_value = returned_mask
shap_out, y_out, pred_out = inspector.slice_cluster(
target_cluster_id, complementary=False)
# Ensure mocked_compute not called
mocked_compute.accert_not_called()
# Ensure mock_get_cluster_mask called with correct arguments
mock_get_cluster_mask.assert_called_once()
pd.testing.assert_frame_equal(
mock_get_cluster_mask.call_args[0][0], summary)
assert mock_get_cluster_mask.call_args[0][
1] == target_cluster_id
# Check outputs
pd.testing.assert_frame_equal(shap_out, X_shap[correct_mask])
pd.testing.assert_series_equal(y_out, y[correct_mask])
pd.testing.assert_series_equal(pred_out, predicted_proba[correct_mask])
def test_predict_clusters__not_fitted(mock_clusterer, global_small_df):
mock_clusterer.predict.return_value = [1, 0]
# InspectorShap not fitted
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=True)
inspector.clusterer = mock_clusterer
inspector.predicted_proba = True
X = global_small_df
# Check if not fitted exception is raised
with pytest.raises(NotFittedError):
inspector.predict_clusters(X)
# Check if X3 has not been modified
pd.testing.assert_frame_equal(X, global_small_df)
def test_create_summary_df(mocked_method, global_clusters, global_y,
global_predicted_proba, global_confusion_metric,
global_summary_df):
cluster_series = global_clusters
y_series = global_y
probas = global_predicted_proba
mocked_method.return_value = global_confusion_metric
expected_output = global_summary_df
output = InspectorShap.create_summary_df(cluster_series,
y_series,
probas,
normalize=False)
# Check if method is called with correct input
mocked_method.assert_called_once()
pd.testing.assert_series_equal(mocked_method.call_args[0][0], y_series)
pd.testing.assert_series_equal(mocked_method.call_args[0][1], probas)
assert mocked_method.call_args_list[0][1]['normalize'] is False
# Check if the output is correct
pd.testing.assert_frame_equal(output, expected_output)
def test_fit_clusters__inspector_shap_proba(mock_clusterer,
global_small_df):
inspector = InspectorShap(model=MockModel(),
algotype='kmeans',
cluster_probability=True)
inspector.clusterer = mock_clusterer
inspector.predicted_proba = True
X = global_small_df
#Check if not fitted exception is raised
inspector.fit_clusters(X)
# Check if column with probabilities has been added to the fitted X
assert 'probs' in mock_clusterer.fit.call_args[0][0].columns
# Check if has been called
mock_clusterer.fit.assert_called_once()
# Check if X has not been modified
pd.testing.assert_frame_equal(X, global_small_df)
assert inspector.fitted is True
def test_slice_cluster_eval_sets__single_df():
inspector = InspectorShap(model=MockModel(), algotype='kmeans')
inspector.hasmultiple_dfs = False
cluster_id = 1
with pytest.raises(NotFittedError):
inspector.slice_cluster_eval_set(cluster_id)
def test_init_inspector_error():
with pytest.raises(UnsupportedModelError):
InspectorShap(model=MockModel(),
algotype='error',
confusion_metric='proba')
def test_init_inspector_error():
with pytest.raises(NotImplementedError):
InspectorShap(model=MockModel(),
algotype='kmeans',
confusion_metric='error')
