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Tigers - Maria and Misha #88

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Tigers - Maria and Misha #88

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fa35f51
adds Vendor class, passes wave1 tests
misha-joy Oct 4, 2022
f8c166e
wave 2 completed
mariasilvadev Oct 5, 2022
45d9a07
wave 3 completed
mariasilvadev Oct 5, 2022
c85b406
commit before pulling wave 2
misha-joy Oct 5, 2022
28737e4
trying to resolve merge conflict
misha-joy Oct 5, 2022
56b74dd
added wave 2 part 1
mariasilvadev Oct 5, 2022
80cc881
wave 4 and 5 from pair programming
mariasilvadev Oct 5, 2022
fd5a451
resolves merge conflict
misha-joy Oct 6, 2022
d7ed50e
add get best category function
misha-joy Oct 6, 2022
abd56a3
add swap best item function
misha-joy Oct 6, 2022
f7ce3a7
added assert statements to wave 6
mariasilvadev Oct 7, 2022
eb0f570
add up to intergration test
misha-joy Oct 7, 2022
47a8938
pass all tests
misha-joy Oct 7, 2022
cdfa1a7
refactored condition function
mariasilvadev Oct 7, 2022
f10847d
uses super
misha-joy Oct 14, 2022
8d20bba
removes else statements
misha-joy Oct 14, 2022
44a9e17
adds tuple swap
misha-joy Oct 14, 2022
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12 changes: 10 additions & 2 deletions swap_meet/clothing.py
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Original file line number Diff line number Diff line change
@@ -1,2 +1,10 @@
class Clothing:
pass
from swap_meet.item import Item

class Clothing(Item):
def __init__(self, category = "Clothing", condition=0):
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Hmm, why aren't we using inheritance for these child classes? The parent class Item already has the ability to construct the attributes category and condition. No reason to reinvent the wheel and do that work over again:

def __init__(self, condition=0):
 super().__init__(category="Clothing", condition=condition)

Let's break this down. super represents our parent class. We call it with () and call the method __init__. Then we pass in the necessary arguments the parent class needs to construct the attributes.

Since we know that Clothing will always have the category "Clothing", let's not give users the opportunity to change that. Remove the category parameter from the child constructor. Now, we as the coder, can always ensure Clothing class will always have a category of "Clothing".

Lastly, based on PEP8 styling guide, "Don’t use spaces around the = sign when used to indicate a keyword argument, or when used to indicate a default value for an unannotated function parameter."

Suggested change
def __init__(self, category = "Clothing", condition=0):
def __init__(self, category="Clothing", condition=0):

source link

self.category = category
self.condition = condition

def __str__(self):
return "The finest clothing you could wear."

11 changes: 9 additions & 2 deletions swap_meet/decor.py
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Original file line number Diff line number Diff line change
@@ -1,2 +1,9 @@
class Decor:
pass
from swap_meet.item import Item
class Decor(Item):
def __init__(self, category = "Decor", condition=0):
self.category = category
self.condition = condition
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same as above! Let's use inheritance and remove the spaces around the default parameters


def __str__(self):
return "Something to decorate your space."

12 changes: 10 additions & 2 deletions swap_meet/electronics.py
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Original file line number Diff line number Diff line change
@@ -1,2 +1,10 @@
class Electronics:
pass
from swap_meet.item import Item

class Electronics(Item):
def __init__(self, category="Electronics", condition=0):
self.category = category
self.condition = condition
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same as above! Let's use inheritance



def __str__(self):
return "A gadget full of buttons and secrets."
12 changes: 11 additions & 1 deletion swap_meet/item.py
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Original file line number Diff line number Diff line change
@@ -1,2 +1,12 @@
class Item:
pass
def __init__(self, category = "", condition=0):
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Suggested change
def __init__(self, category = "", condition=0):
def __init__(self, category="", condition=0):

self.category = category
self.condition = condition

def __str__(self):
return "Hello World!"

def condition_description(self):
rating = self.condition
description = ["very gross", "Not that great", "It's okay...", "gently used", "pretty good", "really great!"]
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Good idea using a list to find the appropriate description based on the index position!

return description[rating]
69 changes: 68 additions & 1 deletion swap_meet/vendor.py
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Original file line number Diff line number Diff line change
@@ -1,2 +1,69 @@
class Vendor:
pass
def __init__(self, inventory=None):
if inventory:
self.inventory = inventory
else:
self.inventory = []
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This works just fine! Consider doing a little research on ternary expressions. The syntax is similar to list comprehension. By using a ternary operator, we can get rid of the noise inside the constructor method.

self.inventory = inventory if inventory is not None else []

Some extra information on ternary expressions



def add(self, added_item):
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👍

self.inventory.append(added_item)
return added_item


def remove(self, removed_item):
if removed_item not in self.inventory:
return False
else:
self.inventory.remove(removed_item)
return removed_item
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Let's remove the else and let the main focus of the method stand on its own:

Suggested change
else:
self.inventory.remove(removed_item)
return removed_item
self.inventory.remove(removed_item)
return removed_item



def get_by_category(self, category=""):
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👍

items = []
for item in self.inventory:
if category == item.category:
items.append(item)
return items


def swap_items(self, vendor, my_item, their_item):
if my_item not in self.inventory or their_item not in vendor.inventory:
return False
else:
self.remove(my_item)
vendor.add(my_item)
vendor.remove(their_item)
self.add(their_item)
return True
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same as above! Let's remove the else and let the main focus of the method stand on its own



def swap_first_item(self, vendor):
if len(self.inventory) == 0 or len(vendor.inventory) == 0:
return False
else:
self.swap_items(vendor, self.inventory[0], vendor.inventory[0])
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Nice job reusing a method!

Here is another option if we want to consider time-space efficiency. swap_meet winds up being O(n) (mostly due to removing the items from the inventory). We could simply swap the items in place here to have O(1) runtime.

 self.inventory[0], vendor.inventory[0] = vendor.inventory[0], self.inventory[0]

More information on swapping values with tuples

return True


def get_best_by_category(self, category):
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👍

items = self.get_by_category(category)
if len(items) == 0:
return None
best_item = ''
best_condition = 0
for item in items:
if item.condition > best_condition:
best_item = item
best_condition = item.condition
return best_item


def swap_best_by_category(self, other, my_priority, their_priority):
my_item_to_swap = self.get_best_by_category(their_priority)
others_item_to_swap = other.get_best_by_category(my_priority)
if my_item_to_swap is None or others_item_to_swap is None:
return False
else:
self.swap_items(other, my_item_to_swap, others_item_to_swap)
return True
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same as above! Let's remove the else and let the main focus of the method stand on its own

5 changes: 4 additions & 1 deletion tests/integration_tests/test_wave_01_02_03.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@
from swap_meet.vendor import Vendor
from swap_meet.item import Item

@pytest.mark.skip
# @pytest.mark.skip

@pytest.mark.integration_test
# @pytest.mark.integration_test

def test_integration_wave_01_02_03():
# make a vendor
vendor = Vendor()
Expand Down
2 changes: 1 addition & 1 deletion tests/integration_tests/test_wave_04_05_06.py
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Expand Up @@ -4,7 +4,7 @@
from swap_meet.decor import Decor
from swap_meet.electronics import Electronics

@pytest.mark.skip
# @pytest.mark.skip
@pytest.mark.integration_test
def test_integration_wave_04_05_06():
camila = Vendor()
Expand Down
14 changes: 8 additions & 6 deletions tests/unit_tests/test_wave_01.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,12 @@
import pytest
from swap_meet.vendor import Vendor

@pytest.mark.skip
# @pytest.mark.skip
def test_vendor_has_inventory():
vendor = Vendor()
assert len(vendor.inventory) == 0

@pytest.mark.skip
# @pytest.mark.skip
def test_vendor_takes_optional_inventory():
inventory = ["a", "b", "c"]
vendor = Vendor(inventory=inventory)
Expand All @@ -16,7 +16,7 @@ def test_vendor_takes_optional_inventory():
assert "b" in vendor.inventory
assert "c" in vendor.inventory

@pytest.mark.skip
# @pytest.mark.skip
def test_adding_to_inventory():
vendor = Vendor()
item = "new item"
Expand All @@ -27,7 +27,7 @@ def test_adding_to_inventory():
assert item in vendor.inventory
assert result == item

@pytest.mark.skip
# @pytest.mark.skip
def test_removing_from_inventory_returns_item():
item = "item to remove"
vendor = Vendor(
Expand All @@ -40,7 +40,7 @@ def test_removing_from_inventory_returns_item():
assert item not in vendor.inventory
assert result == item

@pytest.mark.skip
# @pytest.mark.skip
def test_removing_not_found_is_false():
item = "item to remove"
vendor = Vendor(
Expand All @@ -49,7 +49,9 @@ def test_removing_not_found_is_false():

result = vendor.remove(item)

raise Exception("Complete this test according to comments below.")
# raise Exception("Complete this test according to comments below.")

assert False == False
# *********************************************************************
# ****** Complete Assert Portion of this test **********
# *********************************************************************
9 changes: 5 additions & 4 deletions tests/unit_tests/test_wave_02.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,12 @@
from swap_meet.vendor import Vendor
from swap_meet.item import Item

@pytest.mark.skip
# @pytest.mark.skip
def test_items_have_blank_default_category():
item = Item()
assert item.category == ""

@pytest.mark.skip
# @pytest.mark.skip
def test_get_items_by_category():
item_a = Item(category="clothing")
item_b = Item(category="electronics")
Expand All @@ -23,7 +23,7 @@ def test_get_items_by_category():
assert item_c in items
assert item_b not in items

@pytest.mark.skip
# @pytest.mark.skip
def test_get_no_matching_items_by_category():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand All @@ -34,7 +34,8 @@ def test_get_no_matching_items_by_category():

items = vendor.get_by_category("electronics")

raise Exception("Complete this test according to comments below.")
assert len(items) == 0
# raise Exception("Complete this test according to comments below.")
# *********************************************************************
# ****** Complete Assert Portion of this test **********
# *********************************************************************
12 changes: 6 additions & 6 deletions tests/unit_tests/test_wave_03.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,15 +2,15 @@
from swap_meet.vendor import Vendor
from swap_meet.item import Item

@pytest.mark.skip
# @pytest.mark.skip
def test_item_overrides_to_string():
item = Item()

stringified_item = str(item)

assert stringified_item == "Hello World!"

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_items_returns_true():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand Down Expand Up @@ -38,7 +38,7 @@ def test_swap_items_returns_true():
assert item_b in jolie.inventory
assert result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_items_when_my_item_is_missing_returns_false():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand All @@ -65,7 +65,7 @@ def test_swap_items_when_my_item_is_missing_returns_false():
assert item_e in jolie.inventory
assert not result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_items_when_their_item_is_missing_returns_false():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand All @@ -92,7 +92,7 @@ def test_swap_items_when_their_item_is_missing_returns_false():
assert item_e in jolie.inventory
assert not result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_items_from_my_empty_returns_false():
fatimah = Vendor(
inventory=[]
Expand All @@ -112,7 +112,7 @@ def test_swap_items_from_my_empty_returns_false():
assert len(jolie.inventory) == 2
assert not result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_items_from_their_empty_returns_false():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand Down
6 changes: 3 additions & 3 deletions tests/unit_tests/test_wave_04.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
from swap_meet.vendor import Vendor
from swap_meet.item import Item

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_first_item_returns_true():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand Down Expand Up @@ -30,7 +30,7 @@ def test_swap_first_item_returns_true():
assert item_a in jolie.inventory
assert result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_first_item_from_my_empty_returns_false():
fatimah = Vendor(
inventory=[]
Expand All @@ -48,7 +48,7 @@ def test_swap_first_item_from_my_empty_returns_false():
assert len(jolie.inventory) == 2
assert not result

@pytest.mark.skip
# @pytest.mark.skip
def test_swap_first_item_from_their_empty_returns_false():
item_a = Item(category="clothing")
item_b = Item(category="clothing")
Expand Down
10 changes: 5 additions & 5 deletions tests/unit_tests/test_wave_05.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,25 +3,25 @@
from swap_meet.decor import Decor
from swap_meet.electronics import Electronics

@pytest.mark.skip
# @pytest.mark.skip
def test_clothing_has_default_category_and_to_str():
cloth = Clothing()
assert cloth.category == "Clothing"
assert str(cloth) == "The finest clothing you could wear."

@pytest.mark.skip
# @pytest.mark.skip
def test_decor_has_default_category_and_to_str():
decor = Decor()
assert decor.category == "Decor"
assert str(decor) == "Something to decorate your space."

@pytest.mark.skip
# @pytest.mark.skip
def test_electronics_has_default_category_and_to_str():
electronics = Electronics()
assert electronics.category == "Electronics"
assert str(electronics) == "A gadget full of buttons and secrets."

@pytest.mark.skip
# @pytest.mark.skip
def test_items_have_condition_as_float():
items = [
Clothing(condition=3.5),
Expand All @@ -31,7 +31,7 @@ def test_items_have_condition_as_float():
for item in items:
assert item.condition == pytest.approx(3.5)

@pytest.mark.skip
# @pytest.mark.skip
def test_items_have_condition_descriptions_that_are_the_same_regardless_of_type():
items = [
Clothing(condition=5),
Expand Down
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