rspec-skill

Name: rspec-skill
Author: LambdaTest

140installs67forks

How to install rspec-skill?

lambdatest/agent-skills/rspec-skill

$npx -y skills add LambdaTest/agent-skills --skill rspec-skill

Installs into the current project.

Summary

Generates RSpec tests in Ruby with describe/context/it blocks, matchers, let/before hooks, and mocking. Use when user mentions "RSpec", "describe do", "expect().to", "Ruby test". Triggers on: "RSpec", "expect().to eq()", "describe do", "Ruby test", "spec file".

Files · 1

View on GitHub

SKILL.md

1	# RSpec Testing Skill
2
3	## Core Patterns
4
5	### Basic Test
6
7	```ruby
8	RSpec.describe Calculator do
9	subject(:calculator) { described_class.new }
10
11	describe '#add' do
12	it 'adds two positive numbers' do
13	expect(calculator.add(2, 3)).to eq(5)
14	end
15
16	it 'handles negative numbers' do
17	expect(calculator.add(-1, 1)).to eq(0)
18	end
19	end
20
21	describe '#divide' do
22	it 'divides evenly' do
23	expect(calculator.divide(10, 2)).to eq(5)
24	end
25
26	it 'raises on zero divisor' do
27	expect { calculator.divide(10, 0) }.to raise_error(ZeroDivisionError)
28	end
29	end
30	end
31	```
32
33	### Matchers
34
35	```ruby
36	# Equality
37	expect(actual).to eq(expected) # ==
38	expect(actual).to eql(expected) # eql?
39	expect(actual).to equal(expected) # equal? (same object)
40	expect(actual).to be(expected) # equal?
41
42	# Comparison
43	expect(value).to be > 5
44	expect(value).to be_between(1, 10).inclusive
45
46	# Truthiness
47	expect(value).to be_truthy
48	expect(value).to be_falsey
49	expect(value).to be_nil
50
51	# Collections
52	expect(array).to include(3)
53	expect(array).to contain_exactly(1, 2, 3)
54	expect(array).to match_array([3, 1, 2])
55	expect(hash).to include(name: 'Alice')
56
57	# Strings
58	expect(str).to include('hello')
59	expect(str).to start_with('He')
60	expect(str).to match(/\d+/)
61
62	# Types
63	expect(obj).to be_a(String)
64	expect(obj).to be_an_instance_of(MyClass)
65
66	# Exceptions
67	expect { method }.to raise_error(StandardError)
68	expect { method }.to raise_error(StandardError, /message/)
69
70	# Change
71	expect { user.activate }.to change(user, :active).from(false).to(true)
72	expect { list.push(1) }.to change(list, :size).by(1)
73	```
74
75	### Hooks and Let
76
77	```ruby
78	RSpec.describe UserService do
79	let(:repo) { instance_double(UserRepository) }
80	let(:service) { described_class.new(repo) }
81
82	before(:each) do
83	allow(repo).to receive(:save).and_return(true)
84	end
85
86	after(:each) { cleanup }
87	before(:all) { setup_database }
88	after(:all) { teardown_database }
89
90	context 'when creating a user' do
91	it 'saves to repository' do
92	service.create('Alice', 'alice@test.com')
93	expect(repo).to have_received(:save).once
94	end
95	end
96	end
97	```
98
99	### Mocking and Stubbing
100
101	```ruby
102	# Doubles
103	user = double('User', name: 'Alice', email: 'alice@test.com')
104	user = instance_double(User, name: 'Alice')
105
106	# Stubs
107	allow(service).to receive(:fetch).and_return(data)
108	allow(service).to receive(:fetch).with('id').and_return(user)
109
110	# Expectations
111	expect(service).to receive(:save).once
112	expect(service).to receive(:notify).with('alice@test.com')
113	expect(service).not_to receive(:delete)
114	```
115
116	### Shared Examples
117
118	```ruby
119	RSpec.shared_examples 'a valid model' do
120	it { is_expected.to be_valid }
121	it { is_expected.to respond_to(:save) }
122	end
123
124	RSpec.describe User do
125	subject { described_class.new(name: 'Alice') }
126	it_behaves_like 'a valid model'
127	end
128	```
129
130	### Anti-Patterns
131
132	\| Bad \| Good \| Why \|
133	\|-----\|------\|-----\|
134	\| `before` with heavy setup \| `let` (lazy) \| Only evaluates when used \|
135	\| No contexts \| `context 'when...'` \| Clear scenarios \|
136	\| Instance variables \| `let` blocks \| Cleaner, lazier \|
137	\| `should` syntax \| `expect().to` \| Modern RSpec \|
138
139	## Setup: `gem install rspec` then `rspec --init`
140	## Run: `bundle exec rspec` or `rspec spec/models/user_spec.rb`
141	## Config: `.rspec` file with `--format documentation --color`
142
143	## Deep Patterns
144
145	For advanced patterns, debugging guides, CI/CD integration, and best practices,
146	see `reference/playbook.md`.

People who liked this also viewed

6 picks

Type

rspec-skill

140installs67forks

View on GitHub

How to install rspec-skill?

lambdatest/agent-skills/rspec-skill

$npx -y skills add LambdaTest/agent-skills --skill rspec-skill

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# RSpec Testing Skill
2
3	## Core Patterns
4
5	### Basic Test
6
7	```ruby
8	RSpec.describe Calculator do
9	subject(:calculator) { described_class.new }
10
11	describe '#add' do
12	it 'adds two positive numbers' do
13	expect(calculator.add(2, 3)).to eq(5)
14	end
15
16	it 'handles negative numbers' do
17	expect(calculator.add(-1, 1)).to eq(0)
18	end
19	end
20
21	describe '#divide' do
22	it 'divides evenly' do
23	expect(calculator.divide(10, 2)).to eq(5)
24	end
25
26	it 'raises on zero divisor' do
27	expect { calculator.divide(10, 0) }.to raise_error(ZeroDivisionError)
28	end
29	end
30	end
31	```
32
33	### Matchers
34
35	```ruby
36	# Equality
37	expect(actual).to eq(expected) # ==
38	expect(actual).to eql(expected) # eql?
39	expect(actual).to equal(expected) # equal? (same object)
40	expect(actual).to be(expected) # equal?
41
42	# Comparison
43	expect(value).to be > 5
44	expect(value).to be_between(1, 10).inclusive
45
46	# Truthiness
47	expect(value).to be_truthy
48	expect(value).to be_falsey
49	expect(value).to be_nil
50
51	# Collections
52	expect(array).to include(3)
53	expect(array).to contain_exactly(1, 2, 3)
54	expect(array).to match_array([3, 1, 2])
55	expect(hash).to include(name: 'Alice')
56
57	# Strings
58	expect(str).to include('hello')
59	expect(str).to start_with('He')
60	expect(str).to match(/\d+/)
61
62	# Types
63	expect(obj).to be_a(String)
64	expect(obj).to be_an_instance_of(MyClass)
65
66	# Exceptions
67	expect { method }.to raise_error(StandardError)
68	expect { method }.to raise_error(StandardError, /message/)
69
70	# Change
71	expect { user.activate }.to change(user, :active).from(false).to(true)
72	expect { list.push(1) }.to change(list, :size).by(1)
73	```
74
75	### Hooks and Let
76
77	```ruby
78	RSpec.describe UserService do
79	let(:repo) { instance_double(UserRepository) }
80	let(:service) { described_class.new(repo) }
81
82	before(:each) do
83	allow(repo).to receive(:save).and_return(true)
84	end
85
86	after(:each) { cleanup }
87	before(:all) { setup_database }
88	after(:all) { teardown_database }
89
90	context 'when creating a user' do
91	it 'saves to repository' do
92	service.create('Alice', 'alice@test.com')
93	expect(repo).to have_received(:save).once
94	end
95	end
96	end
97	```
98
99	### Mocking and Stubbing
100
101	```ruby
102	# Doubles
103	user = double('User', name: 'Alice', email: 'alice@test.com')
104	user = instance_double(User, name: 'Alice')
105
106	# Stubs
107	allow(service).to receive(:fetch).and_return(data)
108	allow(service).to receive(:fetch).with('id').and_return(user)
109
110	# Expectations
111	expect(service).to receive(:save).once
112	expect(service).to receive(:notify).with('alice@test.com')
113	expect(service).not_to receive(:delete)
114	```
115
116	### Shared Examples
117
118	```ruby
119	RSpec.shared_examples 'a valid model' do
120	it { is_expected.to be_valid }
121	it { is_expected.to respond_to(:save) }
122	end
123
124	RSpec.describe User do
125	subject { described_class.new(name: 'Alice') }
126	it_behaves_like 'a valid model'
127	end
128	```
129
130	### Anti-Patterns
131
132	\| Bad \| Good \| Why \|
133	\|-----\|------\|-----\|
134	\| `before` with heavy setup \| `let` (lazy) \| Only evaluates when used \|
135	\| No contexts \| `context 'when...'` \| Clear scenarios \|
136	\| Instance variables \| `let` blocks \| Cleaner, lazier \|
137	\| `should` syntax \| `expect().to` \| Modern RSpec \|
138
139	## Setup: `gem install rspec` then `rspec --init`
140	## Run: `bundle exec rspec` or `rspec spec/models/user_spec.rb`
141	## Config: `.rspec` file with `--format documentation --color`
142
143	## Deep Patterns
144
145	For advanced patterns, debugging guides, CI/CD integration, and best practices,
146	see `reference/playbook.md`.

People who liked this also viewed

6 picks

Type