Tests for Task 4: Is transmission possible

This page describes the tests for Task 4. For each task, we provide a short description of the test, information about how to recreate the test in ipython3, and the expected result.

To run the tasks for Task 4, run the following command at the Linux command-line:

$ py.test -xvk 'possible'

When you run this command, you’ll see that some tests are labelled as SKIPPED. You can ignore these tests for now,we’ll come back to them later when we introduce vaccines into our simulation.

Test 0

Description: Small city where everyone is susceptible.

To run this test in ipython3 :

city = [('S', 0),    # loc: 0
        ('S', 0),    # loc: 1
        ('S', 0),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 1

Description: Small city where everyone is recovered

To run this test in ipython3 :

city = [('R', 0),    # loc: 0
        ('R', 0),    # loc: 1
        ('R', 0),    # loc: 2
        ('R', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 2

Description: Small city here everyone is infected

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 0),    # loc: 1
        ('I', 0),    # loc: 2
        ('I', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 3

Description: Larger city with mix of susceptible and recovered people

To run this test in ipython3 :

city = [('R', 0),    # loc: 0
        ('S', 0),    # loc: 1
        ('R', 0),    # loc: 2
        ('S', 0),    # loc: 3
        ('R', 0),    # loc: 4
        ('S', 0),    # loc: 5
        ('R', 0),    # loc: 6
        ('S', 0),    # loc: 7
        ('R', 0),    # loc: 8
        ('S', 0),    # loc: 9
        ('R', 0),    # loc: 10
        ('S', 0),    # loc: 11
        ('R', 0),    # loc: 12
        ('S', 0),    # loc: 13
        ('R', 0),    # loc: 14
        ('S', 0),    # loc: 15
        ('R', 0),    # loc: 16
        ('S', 0),    # loc: 17
        ('R', 0),    # loc: 18
        ('S', 0)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: False

Test 4

Description: Small city: susceptible person in location 1 has an infected neighbor

To run this test in ipython3 :

city = [('I', 1),    # loc: 0
        ('S', 0),    # loc: 1
        ('S', 0),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 5

Description: Small city: susceptible people in locations 0 and 2 have infected neighbors

To run this test in ipython3 :

city = [('S', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('S', 0),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 6

Description: Small city: susceptible people in locations 1 and 3 have infected neighbors

To run this test in ipython3 :

city = [('S', 0),    # loc: 0
        ('S', 0),    # loc: 1
        ('I', 1),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 7

Description: Small city: susceptible people in locations 0 and 2 have infected neighbors

To run this test in ipython3 :

city = [('S', 0),    # loc: 0
        ('S', 0),    # loc: 1
        ('S', 0),    # loc: 2
        ('I', 1)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 8

Description: Small city with one infected in slot 0, rest recovered

To run this test in ipython3 :

city = [('I', 1),    # loc: 0
        ('R', 0),    # loc: 1
        ('R', 0),    # loc: 2
        ('R', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 9

Description: Larger city with a mix of infected and recovered people.

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('I', 0),    # loc: 2
        ('I', 1),    # loc: 3
        ('I', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('I', 0),    # loc: 8
        ('I', 1),    # loc: 9
        ('I', 0),    # loc: 10
        ('R', 1),    # loc: 11
        ('I', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('R', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('I', 0),    # loc: 16
        ('I', 1),    # loc: 17
        ('I', 3),    # loc: 18
        ('I', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: False

Test 10

Description: Larger city with one susceptible person who has an infected neighbor.

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('I', 0),    # loc: 2
        ('I', 1),    # loc: 3
        ('I', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('I', 0),    # loc: 8
        ('S', 1),    # loc: 9
        ('I', 0),    # loc: 10
        ('I', 1),    # loc: 11
        ('R', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('I', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('I', 0),    # loc: 16
        ('R', 1),    # loc: 17
        ('I', 3),    # loc: 18
        ('R', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: True

Test 11

Description: Larger city, more than one susceptible person with an infected neighbor.

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('I', 0),    # loc: 2
        ('I', 1),    # loc: 3
        ('I', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('I', 0),    # loc: 8
        ('S', 1),    # loc: 9
        ('I', 0),    # loc: 10
        ('I', 1),    # loc: 11
        ('R', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('I', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('I', 0),    # loc: 16
        ('S', 1),    # loc: 17
        ('I', 3),    # loc: 18
        ('R', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: True

Test 12

Description: Larger city, all susceptible people are protected by recovered people

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('I', 0),    # loc: 2
        ('I', 1),    # loc: 3
        ('I', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('R', 0),    # loc: 8
        ('S', 1),    # loc: 9
        ('S', 0),    # loc: 10
        ('S', 1),    # loc: 11
        ('R', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('I', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('I', 0),    # loc: 16
        ('I', 1),    # loc: 17
        ('I', 3),    # loc: 18
        ('R', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: False

Tests for Task 6-4: add vaxxed people

This section describes tests for Task 4 that include vaccinated people. Work through these tests after you have completed Tasks 1-5.

To run the tasks for Task 6-4, run the following command at the Linux command-line:

$ py.test -xvk possible --runvax

Test 0

Description: Small city with all vaxxed people

To run this test in ipython3 :

city = [('V', 0),    # loc: 0
        ('V', 0),    # loc: 1
        ('V', 0),    # loc: 2
        ('V', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 1

Description: Larger city with mix of susceptible, recovered, and vaxxed

To run this test in ipython3 :

city = [('R', 0),    # loc: 0
        ('S', 0),    # loc: 1
        ('R', 0),    # loc: 2
        ('S', 0),    # loc: 3
        ('R', 0),    # loc: 4
        ('S', 0),    # loc: 5
        ('R', 0),    # loc: 6
        ('V', 0),    # loc: 7
        ('R', 0),    # loc: 8
        ('S', 0),    # loc: 9
        ('R', 0),    # loc: 10
        ('V', 0),    # loc: 11
        ('R', 0),    # loc: 12
        ('S', 0),    # loc: 13
        ('R', 0),    # loc: 14
        ('V', 0),    # loc: 15
        ('R', 0),    # loc: 16
        ('S', 0),    # loc: 17
        ('R', 0),    # loc: 18
        ('S', 0)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: False

Test 2

Description: Small city: infected followed by vaxxed

To run this test in ipython3 :

city = [('I', 1),    # loc: 0
        ('V', 0),    # loc: 1
        ('V', 0),    # loc: 2
        ('V', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 3

Description: Small city: susceptible and vaxxed vaxxed

To run this test in ipython3 :

city = [('V', 1),    # loc: 0
        ('S', 0),    # loc: 1
        ('V', 0),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: False

Test 4

Description: Small city: susceptible person at location 3 has an infected neighbor.

To run this test in ipython3 :

city = [('V', 1),    # loc: 0
        ('V', 0),    # loc: 1
        ('I', 0),    # loc: 2
        ('S', 0),    # loc: 3
        ('R', 0)]    # loc: 4
sir.is_transmission_possible(city)

Expected result: True

Test 5

Description: Small city: susceptible person at location 3 has an infected neighbor.

To run this test in ipython3 :

city = [('I', 1),    # loc: 0
        ('V', 0),    # loc: 1
        ('S', 0),    # loc: 2
        ('S', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 6

Description: Small city: susceptible person at location 0 has an infected neighbor.

To run this test in ipython3 :

city = [('S', 1),    # loc: 0
        ('V', 0),    # loc: 1
        ('S', 0),    # loc: 2
        ('I', 0)]    # loc: 3
sir.is_transmission_possible(city)

Expected result: True

Test 7

Description: Larger city: several susceptible people have infected nighbors

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('V', 0),    # loc: 2
        ('V', 1),    # loc: 3
        ('V', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('I', 0),    # loc: 8
        ('S', 1),    # loc: 9
        ('I', 0),    # loc: 10
        ('I', 1),    # loc: 11
        ('R', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('I', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('I', 0),    # loc: 16
        ('S', 1),    # loc: 17
        ('I', 3),    # loc: 18
        ('R', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: True

Test 8

Description: Larger city: all susceptible people are protected by vaxed or recovered people

To run this test in ipython3 :

city = [('I', 0),    # loc: 0
        ('I', 1),    # loc: 1
        ('V', 0),    # loc: 2
        ('V', 1),    # loc: 3
        ('V', 0),    # loc: 4
        ('I', 1),    # loc: 5
        ('I', 0),    # loc: 6
        ('R', 1),    # loc: 7
        ('V', 0),    # loc: 8
        ('S', 1),    # loc: 9
        ('V', 0),    # loc: 10
        ('I', 1),    # loc: 11
        ('R', 0),    # loc: 12
        ('I', 1),    # loc: 13
        ('I', 2),    # loc: 14
        ('I', 1),    # loc: 15
        ('V', 0),    # loc: 16
        ('S', 1),    # loc: 17
        ('R', 3),    # loc: 18
        ('R', 1)]    # loc: 19
sir.is_transmission_possible(city)

Expected result: False