Added first tests

quapy/tests/test_base.py

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+import pytest
+
+def test_import():
+    import quapy as qp
+    assert qp.__version__ is not None

quapy/tests/test_datasets.py

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+import pytest
+
+from quapy.data.datasets import REVIEWS_SENTIMENT_DATASETS, TWITTER_SENTIMENT_DATASETS_TEST, \
+    TWITTER_SENTIMENT_DATASETS_TRAIN, UCI_DATASETS, fetch_reviews, fetch_twitter, fetch_UCIDataset
+
+
+@pytest.mark.parametrize('dataset_name', REVIEWS_SENTIMENT_DATASETS)
+def test_fetch_reviews(dataset_name):
+    fetch_reviews(dataset_name)
+
+
+@pytest.mark.parametrize('dataset_name', TWITTER_SENTIMENT_DATASETS_TEST + TWITTER_SENTIMENT_DATASETS_TRAIN)
+def test_fetch_twitter(dataset_name):
+    fetch_twitter(dataset_name)
+
+@pytest.mark.parametrize('dataset_name',  UCI_DATASETS)
+def test_fetch_UCIDataset(dataset_name):
+    fetch_UCIDataset(dataset_name)

quapy/tests/test_methods.py

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+import numpy
+import pytest
+from sklearn.linear_model import LogisticRegression
+from sklearn.naive_bayes import MultinomialNB
+from sklearn.svm import LinearSVC
+
+import quapy as qp
+
+datasets = [qp.datasets.fetch_twitter('semeval16')]
+
+aggregative_methods = [qp.method.aggregative.CC, qp.method.aggregative.ACC, qp.method.aggregative.ELM]
+
+learners = [LogisticRegression, MultinomialNB, LinearSVC]
+
+
+@pytest.mark.parametrize('dataset', datasets)
+@pytest.mark.parametrize('aggregative_method', aggregative_methods)
+@pytest.mark.parametrize('learner', learners)
+def test_aggregative_methods(dataset, aggregative_method, learner):
+    model = aggregative_method(learner())
+
+    model.fit(dataset.training)
+
+    estim_prevalences = model.quantify(dataset.test.instances)
+
+    true_prevalences = dataset.test.prevalence()
+    error = qp.error.mae(true_prevalences, estim_prevalences)
+
+    assert type(error) == numpy.float64