For 2021 - online Python 3 training - see ((here)).
Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7. We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.
Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc. |
Scenario outlines - tables of values to test - in Gherkin / Cucumber
Rather that writing large numbers of scenarios in Gherkin, we can write Scenario Outlines and then supply Example rows of data to fill in to those outlines - a great way of specifying a series of similar behaviours - a list of "if I do aaa with the value x then I get the result y" statements where x and y will vary, but aaa will be the same thing many times over.
This follows on from the example described [here].
Here's an example of a feature file using a scenario outline:
Feature: Checking we know station names and passenger counts
Scenario Outline:
When we ask for the full name for "<tlc>"
Then we are told it is "<fullname>"
Then we are also told it had <journeys> passengers
Examples:
| tlc | fullname | journeys |
| SWI | Swindon | 3350444 |
| DMH | Dilton Marsh | 20084 |
| PLY | Plymouth | 2445464 |
| SPP | Shippea Hill | 12 |
Here is the implementation of those features:
When(/^we ask for the full name for "(.*?)"$/) do |arg1|
@station = loadStationFactory[arg1]
end
Then(/^we are told it is "(.*?)"$/) do |arg1|
expect(@station.getFullName).to eq(arg1)
end
Then(/^we are also told it had (\d+) passengers$/) do |arg1|
expect(@station.getPassengers).to eq(arg1.to_i)
end
And here are the results when we run all of those tabulated tests:
munchkin:lr grahamellis$ cucumber -s cucTables
Feature: Checking we know station names and passenger counts
Scenario Outline:
When we ask for the full name for "<tlc>"
Then we are told it is "<fullname>"
Then we are also told it had <journeys> passengers
Examples:
| tlc | fullname | journeys |
| SWI | Swindon | 3350444 |
| DMH | Dilton Marsh | 20084 |
| PLY | Plymouth | 2445464 |
| SPP | Shippea Hill | 12 |
4 scenarios (4 passed)
12 steps (12 passed)
0m0.259s
munchkin:lr grahamellis$
Source:
Station feature file - [here]
Step implemenation - [here]
and the file we're testing - from another module
stations.py - [here] (written 2015-10-23)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles R221 - Ruby - Introduction to Cucumber [4380] Behaviour Driven Development / Ruby and Cucumber - (2015-01-02) [4381] Installing Cucumber (Ruby) - (2015-01-03) [4382] Second step Cucumber and Gherkin - beyond Hello World - (2015-01-03) [4383] Improved test in Cucumber with RSpec - (2015-01-03) [4384] Installing Cucumber on Ubuntu - cannot load such file -- mkmf (LoadError) message - (2015-01-04) [4386] Guide exercise to help you learn Gherkin, Cucumber and Rspec - (2015-01-06) [4551] Testing your new class - first steps with cucumber - (2015-10-23)
Some other Articles
Strings in C - strncmp strncpy and friendsPreprocessor directives in C and C++ - what they meanPassing information into functions in C - by name, by valueRUby - loading, using, changing, storing JSON format dataScenario outlines - tables of values to test - in Gherkin / CucumberBuild up classes into applications sharing data types in RubyClarrissa-Marybelle - too long to really fit?Melksham - two small townships, or one big one?RUH Hopper - experience and thoughts forward
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