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require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
# RSpec::Parameterized
# Sample
# plus
# [1, 2, 3]
# should do additions
# [5, 8, 13]
# should do additions
# [0, 0, 0]
# should do additions
describe RSpec::Parameterized do
describe "where and with_them" do
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
with_them do
it "#{params[:a]} + #{params[:b]} == #{params[:answer]}" do
expect(a + b).to eq answer
end
end
with_them pending: "PENDING" do
it "should do additions" do
expect(a + b).to == answer
end
end
end
describe "lambda parameter" do
where(:a, :b, :answer) do
[
[1 , 2 , -> {should == 3}],
[5 , 8 , -> {should == 13}],
[0 , 0 , -> {should == 0}]
]
end
with_them do
subject {a + b}
it "should do additions" do
self.instance_exec(&answer)
end
end
end
describe "Hash arguments" do
where(a: [1, 3], b: [5, 7, 9], c: [2, 4])
with_them do
it "sums is even" do
expect(a + b + c).to be_even
end
end
end
describe "Verbose syntax" do
where do
{
"positive integers" => {
a: 1,
b: 2,
answer: 3,
},
"negative_integers" => {
a: -1,
b: -2,
answer: -3,
},
"mixed_integers" => {
a: 3,
b: -3,
answer: 0,
},
}
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
it "should have custom name" do |example|
expect(example.metadata[:example_group][:description]).to eq case_name
end
end
context "lambda parameter" do
where do
{
"integers" => {
a: 1,
b: 2,
answer: -> {expect(subject).to eq 3},
},
"strings" => {
a: "hello ",
b: "world",
answer: -> {expect(subject).to include "lo wo"},
},
"arrays" => {
a: [1, 2, 3],
b: [4, 5, 6],
answer: -> {expect(subject.size).to eq 6}
}
}
end
with_them do
subject {a + b}
it "should do additions" do
self.instance_exec(&answer)
end
it "should have custom name" do |example|
expect(example.metadata[:example_group][:description]).to eq(case_name)
end
end
end
end
describe "Custom test case name" do
context "when regular arguments" do
where(:case_name, :a, :b, :answer) do
[
["positive integers", 6, 2, 8],
["negative integers", -1, -2, -3],
[ "mixed integers", -5, 3, -2],
]
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
it "should have custom test name" do |example|
expect(example.metadata[:example_group][:description]).to eq case_name
end
end
end
context "when hash arguments" do
where(case_names: ->(a, b, c){"#{a} + #{b} + #{c}"}, a: [1, 3], b: [5, 7, 9], c: [2, 4])
with_them do
it "sum is even" do
expect(a + b + c).to be_even
end
it "should have custom names" do |example|
expect(example.metadata[:example_group][:description]).to include "+"
end
end
end
if RUBY_VERSION >= "2,1"
context "when arguments are separated with pipe (using TableSyntax)" do
using RSpec::Parameterized::TableSyntax
where(:case_name, :a, :b, :answer) do
"integers" | 1 | 2 | 3
"strings" | "hello " | "world" | "hello world"
"arrays" | [1, 2, 3] | [4, 5, 6] | [1, 2, 3, 4, 5, 6]
"giant numbers" | 100000000000000000000 | 100000000000000000000 | 200000000000000000000
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
it "should have custom test name" do |example|
expect(example.metadata[:example_group][:description]).to eq case_name
end
end
end
end
end
if RUBY_VERSION >= "2.1"
describe "table separated with pipe (using TableSyntax)" do
using RSpec::Parameterized::TableSyntax
where(:a, :b, :answer) do
1 | 2 | 3
"hello " | "world" | "hello world"
[1, 2, 3] | [4, 5, 6] | [1, 2, 3, 4, 5, 6]
100000000000000000000 | 100000000000000000000 | 200000000000000000000
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
end
end
describe "table separated with pipe and lambda parameter (using TableSyntax)" do
using RSpec::Parameterized::TableSyntax
where(:a, :b, :matcher) do
1 | 2 | -> { eq(3) }
"hello " | "world" | -> { eq("hello world") }
[1, 2, 3] | [4, 5, 6] | -> { be_a(Array) }
100000000000000000000 | 100000000000000000000 | -> { eq(200000000000000000000) }
end
with_them do
it "a plus b is answer" do
expect(a + b).to instance_exec(&matcher)
end
end
end
end
context "when the where block is after with_them" do
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
with_them do
subject { a }
it { should be_a Numeric }
end
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
end
context "when the where block is between with_thems" do
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
with_them do
subject { a }
it { should be_a Numeric }
end
end
context "when the where has only one parameter to be set" do
where(:x) do
[1, 2, 3]
end
with_them do
it 'can take an array of elements' do
expect(x).to eq x
end
end
end
if RUBY_VERSION >= "2.1"
context "when the table has only a row (using TableSyntax)" do
using RSpec::Parameterized::TableSyntax
where(:a, :b, :answer) do
1 | 2 | 3
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
end
end
context "when 1st column is nil or true or false" do
using RSpec::Parameterized::TableSyntax
where(:a, :result) do
nil | nil
false | false
true | true
end
with_them do
it "a is result" do
expect(a).to be result
end
end
end
end
context "when the where has let variables, defined by parent example group" do
describe "parent (define let)" do
let(:five) { 5 }
let(:eight) { 8 }
describe "child 1" do
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[five , eight , 13],
]
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
end
end
if RUBY_VERSION >= "2.1"
describe "child 3 (Using TableSyntax)" do
using RSpec::Parameterized::TableSyntax
where(:a, :b, :answer) do
1 | 2 | 3
five | eight | 13
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
end
end
end
let(:eq_matcher) { eq(13) }
describe "child 3 (use matcher)" do
where(:a, :b, :matcher) do
[
[1 , 2 , eq(3) ],
[five , eight , eq_matcher],
]
end
with_them do
it "a plus b is answer" do
expect(a + b).to matcher
end
end
end
end
end
end
|
