Recomendaciones para pruebas de sofware

Testing Wisdom

A test is an experiment designed to reveal information or answer a specific question about the software or system. Stakeholders have questions; testers have answers.  
Don’t confuse speed with progress.  
Take a contrary approach.  
Observation is exploratory.
 The narrower the view, the wider the ignorance.  
Big bugs are often found by coincidence.  
Bugs cluster.  
Vary sequences, configurations, and data to increase the probability that, if there is a problem, testing will find it.  
It’s all about the variables.

Ubicaciones/Archivos

• Nombres Largos (>255 caracteres) 
• Caractéres especiales en el Nombre (espacio * ? / \ | < > , . ( ) [ ] { } ; : ‘ “ ! @ # $ % ^ &)  
• No Existente 
• Ya Existente 
• Sin espacio
• Mínimo Espacio  
• Protegido contra Escritura 
  
• No Disponible
• Bloqueado
• En una Máquina Remota 
  
• Corrupto

Tiempo y Fechas

• Timeouts  
• Time Difference between Machines  
• Crossing Time Zones 
• Leap Days   
• Always Invalid Days (Feb 30, Sept 31)  
• Feb 29 in Non-Leap Years 
• Different Formats (June 5, 2001; 06/05/2001; 06/05/01; 06-05-01; 6/5/2001 12:34) 
• Daylight Savings 
• Changeover  
• Reset Clock Backward or Forward

 

Números

• 0  
• 32768 (215)  
• 32769 (215 + 1)  
• 65536 (216)  
• 65537 (216 +1) 
• 2147483648 (231)
• 2147483649 (231 + 1)  
• 4294967296 (232)  
• 4294967297 (232 + 1)  
• Scientific Notation (1E-16)  
• Negative  
• Floating Point/Decimal (0.0001) 
• With Commas (1,234,567)
• European Style (1.234.567,89)  
• All the Above in Calculations

Cadenas de caracteres

• Long (255, 256, 257, 1000, 1024, 2000, 2048 or more characters)  
• Accented Chars (àáâãäåçèéêëìíîðñòôõöö, etc.) Asian Chars (漢字 )  
• Common Delimiters and Special Characters ( “ ‘ ` | / \ , ; : & < > ^ * ? Tab ) 
• Leave Blank 
• Single Space 
• Multiple Spaces  
• Leading Spaces  
• End-of-Line Characters (^M)  
• SQL Injection ( ‘select * from customer )  
• With All Actions (Entering, Searching, Updating, etc.)

 

General

• Violates Domain-Specific Rules (an ip address of 999.999.999.999, an email address with no “@”, an age of -1)  
• Violates Uniqueness Constraint

Web Tests

 

Navigation

• Back (watch for ‘Expired’ messages and double-posted transactions) 
• Refresh 
• Bookmark the URL  
• Select Bookmark when Logged Out  
• Hack the URL (change/remove parameters; see also Data Type Attacks)  
• Multiple Browser Instances Open

 

Input

• See also Data Type Attacks  
• HTML/JavaScript Injection (allowing the user to enter arbitrary HTML tags and JavaScript commands can lead to security vulnerabilities) 
• Check Max Length Defined on Text Inputs
•  > 5000 Chars in TextAreas

 

Syntax

• HTML Syntax Checker (http://validator.w3.org/) 
• CSS Syntax Checker (http://jigsaw.w3.org/css-validator/)

 

Preferences

• Javascript Off  
• Cookies Off 
• Security High  
• Resize Browser Window 
• Change Font Size

Heuristics 

Variable Analysis

Identify anything whose value can change. 
Variables can be obvious, subtle, or hidden.

 

Touch Points

Identify any public or private interface that provides visibility or control. 
Provides places to provoke, monitor, and verify the system.

 

Boundaries

Approaching the Boundary (almost too big, almost too small), At the Boundary

 

Goldilocks

Too Big, Too Small, Just Right

 

CRUD

Create, Read, Update, Delete

 

Follow the Data

Perform a sequence of actions involving data, verifying the data integrity at each step.
(Example: Enter → Search → Report → Export → Import → Update → View)

 

Configurations

Varying the variables related to configuration (Screen Resolution; Network Speed, Latency, Signal Strength; Memory; Disk Availability; Count heuristic applied to any peripheral such as 0, 1, Many Monitors, Mice, or Printers)

 

Interruptions

Log Off, Shut Down, Reboot, Kill Process, Disconnect, Hibernate, Timeout, Cancel

 

Starvation

CPU, Memory, Network, or Disk at maximum capacity

 

Position

Beginning, Middle, End (Edit at the beginning of the line, middle of the line, end of the line)

 

Selection

Some, None, All (Some permissions, No permissions, All permissions)

 

Count

0, 1, Many (0 transactions, 1 transactions, Many simultaneous transactions)

 

Multi-User

Simultaneous create, update, delete from two accounts or same account logged in twice.

Flood

Multiple simultaneous transactions or requests flooding the queue.

 

Dependencies

Identify “has a” relationships (a Customer has an Invoice; an Invoice has multiple Line Items). Apply CRUD, Count, Position, and/or Selection heuristics (Customer has 0, 1, many Invoices; Invoice has 0, 1, many Line Items; Delete last Line Item then Read; Update first Line Item; Some, None, All Line Items are taxable; Delete Customer with 0, 1, Many Invoices)

 

Constraints

Violate constraints (leave required fields blank, enter invalid combinations in dependent fields, enter duplicate IDs or names). Apply with the Input Method heuristic.

 

Input Method

Typing, Copy/Paste, Import, Drag/Drop, Various Interfaces (GUI v. API)

 

Sequences

Vary Order of Operations Undo/Redo Reverse Combine Invert Simultaneous

 

Sorting

Alpha v. Numeric Across Multiple Pages

 

State Analysis

Identify states and events/transitions, then represent them in a picture or table. Works with the Sequences and Interruption heuristics.

 

Map Making

Identify a “base” or “home” state. Pick a direction and take one step. Return to base. Repeat.

 

Users & Scenarios

Use Cases, Soap Operas, Personae, Extreme Personalities

Frameworks

Judgment

Inconsistencies, Absences, and Extras with respect to Internal, External – Specific, or External – Cultural reference points. (James Lyndsay, Workroom Productions)

 

Observations

Input/Output/Linkage (James Lyndsay, Workroom Productions)

 

Flow

Input/Processing/Output
 

Requirements

Users/Functions/Attributes/Constraints (Gause & Weinberg Exploring Requirements)

 

Nouns & Verbs

The objects or data in the system and the ways in which the system manipulates it. Also, Adjectives (attributes) such as Visible, Identical, Verbose and Adverbs (action descriptors) such as Quickly, Slowly, Repeatedly, Precisely, Randomly. Good for creating random scenarios.

 

Deming’s Cycle 

Plan, Do, Check, Act

Fuente: Blog Test Obsessed  Test Heuristics Cheatsheet Permalink