Demonstrates the order in which lifecycle event handlers run in rspec

lifecycle_functions_spec.rb

describe "Lifecycle function tests" do

    test_array = []

    before(:all) do
        test_array.push "main block before :all handler"
    end
    before(:each) do # or just before with no param
        test_array.push "main block before :each handler"
    end

    describe "first block" do
        before(:all) do
            test_array.push "first block before :all handler"
        end
        before(:each) do # or just before with no param
            test_array.push "first block before :each handler"
        end
        it "is a test" do
            test_array.push "first block a test"
            expect(test_array).to eq [
                "main block before :all handler",
                "first block before :all handler",
                "main block before :each handler",
                "first block before :each handler",
                "first block a test"
            ]
        end
        it "is another test" do
            test_array.push "first block another test"
            expect(test_array).to eq [
                "main block before :all handler",
                "first block before :all handler",
                "main block before :each handler",
                "first block before :each handler",
                "first block a test",
                "main block before :each handler",
                "first block before :each handler",
                "first block another test"
            ]
        end
    end
end