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Feature: Core: Scenarios, Steps, Mappings
Cucumber is a tool for executing business-readable specifications
written in Gherkin. The basic unit of both specification and
execution is the Scenario. A Scenario is a list of steps, each of
which representing an action performed by a user (or user agent)
on the software product under development. When a Scenario is
executed, its steps are applied to the software system in the order
they are contained in the Scenario.
Gherkin is not a programming language, so in order to execute steps
written in it, Cucumber must first look up a mapping from the text of
each step to a function. If such a mapping exists, the function is
executed, and the result is communicated to the user.
Scenario: All steps passing means the scenario passes
Given a scenario with:
"""
When I add 4 and 5
Then the result is 9
"""
And the step "I add 4 and 5" has a passing mapping
And the step "the result is 9" has a passing mapping
When Cucumber executes the scenario
Then the scenario passes
Scenario: Failing step means the scenario fails
Given a scenario with:
"""
When I add 4 and 5
Then the result is 9
"""
And the step "I add 4 and 5" has a failing mapping
And the step "the result is 9" has a passing mapping
When Cucumber executes the scenario
Then the scenario fails
And the step "the result is 9" is skipped
Scenario: Pending step means the scenario is pending
Given a scenario with:
"""
When I add 4 and 5
Then the result is 9
"""
And the step "I add 4 and 5" has a pending mapping
And the step "the result is 9" has a passing mapping
When Cucumber executes the scenario
Then the scenario is pending
And the step "the result is 9" is skipped
Scenario: Missing step mapping means the scenario is undefined
Given a scenario with:
"""
When I add 4 and 5
Then the result is 9
"""
And the step "the result is 9" has a passing mapping
When Cucumber executes the scenario
Then the scenario is undefined
And the step "the result is 9" is skipped
Scenario: Feature headers
Given the following feature:
"""
Feature: a feature
In order to get results
As a user
I want to do something
"""
When Cucumber runs the feature
Then the feature passes
Scenario: Simple flat steps
Given a scenario with:
"""
Given a calculator
When the calculator computes PI
Then the calculator returns PI
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario passes
Scenario: Given, When, Then, And and But steps
Given a scenario with:
"""
Given a calculator
When the calculator adds up 1 and 2
And the calculator adds up 3 and 0.14159265
Then the calculator returns PI
But the calculator does not return 3
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario passes
Scenario: Failing steps
Given a scenario with:
"""
Given a calculator
When the calculator adds up 3 and 0.14
Then the calculator returns PI
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario fails
Scenario: Single-parameter step
Given a scenario with:
"""
Given a calculator
When the calculator computes PI
Then the calculator returns "3.14159265"
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario passes
Scenario: Two-parameter step
Given a scenario with:
"""
Given a calculator
When the calculator adds up "12" and "51"
Then the calculator returns "63"
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario passes
Scenario: Two-parameter step failing
Given a scenario with:
"""
Given a calculator
When the calculator adds up "12" and "51"
Then the calculator returns "65"
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario fails
Scenario: Three-parameter step
Given a scenario with:
"""
Given a calculator
When the calculator adds up "3", "4" and "5"
Then the calculator returns "12"
"""
When Cucumber runs the scenario with steps for a calculator
Then the scenario passes
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