def test_add_data_to_histogram(self):
        histogram = Histogram(n_bins=5, bin_range=(1.0, 3.5))
        hist = histogram.add_data_to_histogram(self.data)
        assert_equal(histogram.count, 10)
        assert_items_equal(hist, self.hist)

        hist2 = histogram.add_data_to_histogram(self.data)
        assert_items_equal(hist2, hist + hist)
        assert_equal(histogram.count, 20)
    def test_add_data_to_histogram(self):
        histogram = Histogram(n_bins=5, bin_range=(1.0, 3.5))
        hist = histogram.add_data_to_histogram(self.data)
        assert histogram.count == 10
        assert hist == self.hist

        hist2 = histogram.add_data_to_histogram(self.data)
        assert hist2 == hist+hist
        assert histogram.count == 20
    def test_add_data_to_histogram(self):
        histogram = Histogram(n_bins=5, bin_range=(1.0, 3.5))
        hist = histogram.add_data_to_histogram(self.data)
        assert_equal(histogram.count, 10)
        assert_items_equal(hist, self.hist)

        hist2 = histogram.add_data_to_histogram(self.data)
        assert_items_equal(hist2, hist+hist)
        assert_equal(histogram.count, 20)