reading-notes

Game of Green

Random module

Source: How to use the Random Module in Python

Python Random

• random.randint generate random int

import random
print random.randint(0, 5)

# returns 1, 2, 3, 4, 5

• random.random() multiple for larger numbers

import random
random.random() * 100

# between 0 - 100

• random.choice() - Random from a sequence

import random
myList = [2, 109, False, 10, "Lorem", 482, "Ipsum"]
random.choice(myList)

• random.shuffle() - Shuffles list

from random import shuffle
x = [[i] for i in range(10)]
shuffle(x)

# print x  gives  [[9], [2], [7], [0], [4], [5], [3], [1], [8], [6]]
# of course your results will vary

• random.randrange(start, stop[, step]) - Random element in range

import random
for i in range(3):
    print random.randrange(0, 101, 5)

Risk Analysis in Testing

Source: What is Risk Analysis in Software Testing and how to perform it?

Identifying risks in application and prioritizing them to test

Examples:

1. Use of new hardware
2. Use of new technology
3. Use of new automation tool
4. The sequence of code
5. Availability of test resources for the application

Avoidable Risks

1. The time that you allocated for testing
2. A defect leakage due to the complexity or size of the application
3. Urgency from the clients to deliver the project
4. Incomplete requirements

Risk Avoidance

• Conduct Risk Assessment review meeting
• Use maximum resources to work on high-risk areas
• Create a Risk Assessment database for future use
• Identify and notice the risk magnitude indicators: high, medium, low.

Risk Magnitude

• High means the effect of the risk would be very high and non-tolerable. The company might face loss.

• Medium it is tolerable but not desirable. The company may suffer financially but there is a limited risk.

• Low it is tolerable. There lies little or no external exposure or no financial loss.

Risk Identification

• Business Risks Most common. Risk from company or your customer, not from your project.

• Testing Risks Should understand the platform and testinf needed.

• Premature Release Risk risk associated with releasing unsatisfactory or untested software is required

• Software Risks risks associated with the software development process.

Risk Assessment

• Effect – To assess risk by Effect. In case you identify a condition, event or action and try to determine its impact.

• Cause – To assess risk by Cause is opposite of by Effect. Initialize scanning the problem and reach to the point that could be the most probable reason behind that.

• Likelihood – To assess risk by Likelihood is to say that there is a probability that a requirement won’t be satisfied.

Risk Analysis

• Searching the risk
• Analyzing the impact of each individual risk
• Measures for the risk identified