feat: Updated to individual unit tests

tests/test_scatterplot.py

@@ -27,30 +27,39 @@ def test_scatterplot():
         raise TypeError(
             "sample_data should be of a pandas dataframe of type: 'pandas.core.frame.DataFrame'"
         )
-
-    # check if the x column is mapped to x-axis
+
+def test_enc_x_shorthand:
+    """check if the x column is mapped to x-axis"""
     assert scatter.encoding.x.shorthand == 'year', 'x should be mapped to the x-axis'
 
-    # check if the y column is mapped to y-axis
+def test_enc_y_shorthand:
+    """check if the y column is mapped to y-axis"""
     assert scatter.encoding.y.shorthand == 'no_of_cars', 'y should be mapped to the y-axis'
 
-    # check if the color scheme is set to magma
+def test_enc_color_scheme:
+    """check if the color scheme is set to magma"""
     assert scatter.encoding.color.scale.scheme == 'magma', 'color scale scheme should be magma'
 
-    # check if the mark type is point
+def test_mark_type:
+    """check if the mark type is point"""
     assert scatter.mark.type == 'point', 'mark type should be a point'
 
-    # check if the mark opacity is 0.5
+def test_mark_opacity:
+    """check if the mark opacity is 0.5"""
     assert scatter.mark.opacity == 0.5, 'mark opacity should be 0.5'
 
-    # check if the mark size is 50
+def test_mark_size:
+    """check if the mark size is 50"""
     assert scatter.mark.size == 50, 'mark size should be 50'
 
-    # check if the x axis does not start from zero
+def test_enc_x_scale:
+    """check if the x axis does not start from zero"""
     assert scatter.encoding.x.scale.zero == False, 'x-axis should not start at 0'
 
-    # check if the y axis does not start from zero
+def test_enc_y_scale:
+    """check if the y axis does not start from zero"""
     assert scatter.encoding.y.scale.zero == False, 'y-axis should not start at 0'
 
-    # check if the title is correctly updated based on field names
+def test_plot_title:
+    """check if the title is correctly updated based on field names"""
     assert scatter.title == 'Year vs No Of Cars by Brand', 'title should be "Year vs No of Cars by Brand"'