Rspec

.github/workflows/linters.yml

@@ -6,7 +6,7 @@ jobs:
   rubocop:
     name: Rubocop
     runs-on: ubuntu-18.04
-
+    
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-ruby@v1
@@ -17,4 +17,4 @@ jobs:
           gem install --no-document rubocop:'~>1.9.0' # https://docs.rubocop.org/en/stable/installation/
           [ -f .rubocop.yml ] || wget https://raw.githubusercontent.com/microverseinc/linters-config/master/ruby/.rubocop.yml
       - name: Rubocop Report
-        run: rubocop --color
+        run: rubocop --color

.rspec

@@ -0,0 +1 @@
+--require spec_helper

README.md

@@ -22,6 +22,16 @@ For the: [Github-link](https://github.com/MarkoNS1990/enumerables/tree/enumerabl
 
 - Ruby
 
+## Rspec checking 
+
+### Rspec install
+
+`$ gem install rspec`
+`$ rspec --init`
+### Rspec check
+
+- To Check enumerables:- `rspec spec/spec_enumerables.rb`
+
 # Authors 1
 - Name :Marko Zecevic
 - Githhub :https://github.com/MarkoNS1990

spec/enumerables_spec.rb

@@ -0,0 +1,225 @@
+require_relative '../enumerables'
+require 'rspec'
+# To Run "rspec spec/enumerables_spec.rb"
+
+describe 'Enumerables' do
+  let(:arr) { [1, 2, 3, 4, 5] }
+  let(:false_array) { [false] }
+  let(:empty_array) { [] }
+
+  describe 'my_each method' do
+    it 'when no block it should return Enumerator' do
+      expect(arr.my_each).to be_a(Enumerator)
+    end
+
+    it 'when block given then should execute the block for each element' do
+      arr2 = []
+      arr.my_each { |ele| arr2 << ele }
+      expect(arr2).to eq(arr)
+    end
+
+    it 'when block given then should return self with same object' do
+      arr = [1, 1, 1]
+      expect(arr.my_each { |ele| ele }).to be(arr)
+    end
+  end
+
+  describe 'my_each_with _index method' do
+    it 'when no block it should return Enumerator' do
+      expect(arr.my_each_with_index).to be_a(Enumerator)
+    end
+  end
+
+  describe 'my_select method' do
+    it 'when no block it should return Enumerator' do
+      expect(arr.my_select).to be_a(Enumerator)
+    end
+
+    it 'when block given then should return array which satisfy condition' do
+      arr2 = [3, 4, 5]
+      arr3 = arr.my_select { |ele| ele > 2 }
+      expect(arr3).to eq(arr2)
+    end
+
+    it 'when false given in block then return empty array' do
+      arr3 = arr.my_select { |_ele| false }
+      expect(arr3).to eq(empty_array)
+    end
+  end
+
+  describe 'my_all? method' do
+    it 'when no block it should return true' do
+      expect(arr.my_all?).to be true
+    end
+
+    it 'should return true if empty array' do
+      expect(empty_array.my_all?).to be true
+    end
+
+    it 'when block given then should return true if all element satisfy the condition' do
+      expect(arr.my_all? { |ele| ele > 0 }).to be true
+    end
+
+    it 'when parameter given then should return true if all element satisfy the condition' do
+      expect([1, 2, 3, 4].my_all? { |ele| ele > 0 }).to be true
+    end
+
+    it 'when block given then should return false if any one of element not satisfy the condition' do
+      expect(arr.my_all? { |ele| ele > 4 }).not_to be true
+    end
+
+    it 'when parameter given then should return false if any one of element not satisfy the condition' do
+      expect([1, 2, 3, 4].my_all? { |ele| ele == 4 }).not_to be true
+    end
+
+    it 'when parameter given then should return false if any one of element doesntsatisfy the condition' do
+      expect([1, 2.91, 3, 4].my_all?(Float)).not_to be true
+    end
+
+    it 'when null is an element it should return false' do
+      expect([1, 2, 3, nil].my_all?).not_to be true
+    end
+    it 'when false is an element it should return false' do
+      expect(false_array.my_all?).not_to be true
+    end
+  end
+
+  describe 'my_any? method' do
+    it 'when no block it should return true if element in the array' do
+      expect(arr.my_any?).to be true
+    end
+
+    it 'when all element is true should return true' do
+      expect([1, 2, 3, nil].my_any?).to be true
+    end
+
+    it 'when block given then should return true if any element satisfy condition' do
+      expect(arr.my_any? { |ele| ele > 2 }).to be true
+    end
+
+    it 'when parameter given then should return true if any one of element satisfy the condition' do
+      expect([1, 2, 3, 4].my_any? { |ele| ele == 4 }).to be true
+    end
+
+    it 'when parameter given then should return true if any one of element satisfy the condition' do
+      expect([1, 2.91, 3, 4].my_any?(Float)).to be true
+    end
+
+    it 'should return false if empty array' do
+      expect(empty_array.my_any?).not_to be true
+    end
+
+    it 'when block given then should return false if all element not satisfy the condition' do
+      expect(arr.my_any? { |ele| ele > 10 }).not_to be true
+    end
+
+    it 'when parameter given then should return false if all of element not satisfy the condition' do
+      expect([1, 2, 3, 4].my_any? { |ele| ele > 5 }).not_to be true
+    end
+  end
+
+  describe 'my_none? method' do
+    it 'when null and false is an element it should return true' do
+      expect(false_array.my_none?).to be true
+    end
+
+    it 'should return true if empty array' do
+      expect(empty_array.my_none?).to be true
+    end
+
+    it 'when block given then should return true if no element satisfy the condition' do
+      expect(arr.my_none? { |ele| ele < 0 }).to be true
+    end
+
+    it 'when parameter given then should return true if no element satisfy the condition' do
+      expect([1, 2, 3, 4].my_none? { |ele| ele < 0 }).to be true
+    end
+
+    it 'when block given then should return false if any one of element satisfy the condition' do
+      expect(arr.my_none? { |ele| ele == 4 }).not_to be true
+    end
+
+    it 'when parameter given then should return false if any one of element satisfy the condition' do
+      expect([1, 2.91, 3, 4].my_none?(Float)).not_to be true
+    end
+  end
+
+  describe 'my_count method' do
+    it 'return length of array' do
+      expect(arr.my_count).to eq(arr.length)
+    end
+
+    it 'return the count of the repeated element' do
+      arr1 = [1, 2, 2, 3, 2]
+      expect(arr1.my_count(2)).to eq(3)
+    end
+
+    it 'return the count of the odd element' do
+      arr1 = [1, 2, 2, 3, 2]
+      expect(arr1.my_count(&:odd?)).to eq(2)
+    end
+
+    it 'return the count of the repeated element' do
+      expect(empty_array.my_count).to eq(0)
+    end
+  end
+
+  describe 'my_map method' do
+    it 'when no block it should return Enumerator' do
+      expect(arr.my_map).to be_a(Enumerator)
+    end
+
+    it 'should return the array after calculation with each element' do
+      arr1 = [3, 4, 5]
+      arr2 = [6, 8, 10]
+      arr3 = arr1.my_map { |ele| ele * 2 }
+      expect(arr3).to eq(arr2)
+    end
+
+    it 'should returns thearray with all elements in upper case' do
+      expect(%w[Deepak].my_map(&:upcase)).to eql(%w[DEEPAK])
+    end
+
+    it 'should returns ehe array with all elements converted to integrs' do
+      expect(%w[1 2 3 4 5].my_map(&:to_i)).to eql([1, 2, 3, 4, 5])
+    end
+
+    it 'should returns the class of each element in the given array' do
+      expect([10, 'sweet', :a].my_map(&:class)).to eql([Integer, String, Symbol])
+    end
+  end
+
+  describe 'my_inject method' do
+    it 'Returns local jump error if no block given' do
+      expect { arr.my_inject }.to raise_error(LocalJumpError)
+    end
+
+    it 'should return the sum' do
+      arr2 = [5, 6, 7, 8, 9, 10]
+      arr3 = arr2.my_inject { |sum, n| sum + n }
+      expect(arr3).to eq(45)
+    end
+
+    it 'should return the product' do
+      arr2 = [5, 6, 7, 8, 9, 10]
+      arr3 = arr2.my_inject(1) { |product, n| product * n }
+      expect(arr3).to eq(151_200)
+    end
+
+    it 'should return the longest word' do
+      longest = %w[cat sheep bear]
+      long_word = longest.my_inject { |memo, word| memo.length > word.length ? memo : word }
+      expect(long_word).to eq('sheep')
+    end
+
+    it 'should return the sum of all element' do
+      expect((1..4).my_inject(:+)).to eql(10)
+    end
+  end
+
+  describe 'multiply_els method' do
+    it 'returns result from multiply_els method' do
+      expect(multiply_els(1..5)).to eq(120)
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,98 @@
+# This file was generated by the `rspec --init` command. Conventionally, all
+# specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
+# The generated `.rspec` file contains `--require spec_helper` which will cause
+# this file to always be loaded, without a need to explicitly require it in any
+# files.
+#
+# Given that it is always loaded, you are encouraged to keep this file as
+# light-weight as possible. Requiring heavyweight dependencies from this file
+# will add to the boot time of your test suite on EVERY test run, even for an
+# individual file that may not need all of that loaded. Instead, consider making
+# a separate helper file that requires the additional dependencies and performs
+# the additional setup, and require it from the spec files that actually need
+# it.
+#
+# See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
+RSpec.configure do |config|
+  # rspec-expectations config goes here. You can use an alternate
+  # assertion/expectation library such as wrong or the stdlib/minitest
+  # assertions if you prefer.
+  config.expect_with :rspec do |expectations|
+    # This option will default to `true` in RSpec 4. It makes the `description`
+    # and `failure_message` of custom matchers include text for helper methods
+    # defined using `chain`, e.g.:
+    #     be_bigger_than(2).and_smaller_than(4).description
+    #     # => "be bigger than 2 and smaller than 4"
+    # ...rather than:
+    #     # => "be bigger than 2"
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  # rspec-mocks config goes here. You can use an alternate test double
+  # library (such as bogus or mocha) by changing the `mock_with` option here.
+  config.mock_with :rspec do |mocks|
+    # Prevents you from mocking or stubbing a method that does not exist on
+    # a real object. This is generally recommended, and will default to
+    # `true` in RSpec 4.
+    mocks.verify_partial_doubles = true
+  end
+
+  # This option will default to `:apply_to_host_groups` in RSpec 4 (and will
+  # have no way to turn it off -- the option exists only for backwards
+  # compatibility in RSpec 3). It causes shared context metadata to be
+  # inherited by the metadata hash of host groups and examples, rather than
+  # triggering implicit auto-inclusion in groups with matching metadata.
+  config.shared_context_metadata_behavior = :apply_to_host_groups
+
+  # The settings below are suggested to provide a good initial experience
+  # with RSpec, but feel free to customize to your heart's content.
+  #   # This allows you to limit a spec run to individual examples or groups
+  #   # you care about by tagging them with `:focus` metadata. When nothing
+  #   # is tagged with `:focus`, all examples get run. RSpec also provides
+  #   # aliases for `it`, `describe`, and `context` that include `:focus`
+  #   # metadata: `fit`, `fdescribe` and `fcontext`, respectively.
+  #   config.filter_run_when_matching :focus
+  #
+  #   # Allows RSpec to persist some state between runs in order to support
+  #   # the `--only-failures` and `--next-failure` CLI options. We recommend
+  #   # you configure your source control system to ignore this file.
+  #   config.example_status_persistence_file_path = "spec/examples.txt"
+  #
+  #   # Limits the available syntax to the non-monkey patched syntax that is
+  #   # recommended. For more details, see:
+  #   #   - http://rspec.info/blog/2012/06/rspecs-new-expectation-syntax/
+  #   #   - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
+  #   #   - http://rspec.info/blog/2014/05/notable-changes-in-rspec-3/#zero-monkey-patching-mode
+  #   config.disable_monkey_patching!
+  #
+  #   # This setting enables warnings. It's recommended, but in some cases may
+  #   # be too noisy due to issues in dependencies.
+  #   config.warnings = true
+  #
+  #   # Many RSpec users commonly either run the entire suite or an individual
+  #   # file, and it's useful to allow more verbose output when running an
+  #   # individual spec file.
+  #   if config.files_to_run.one?
+  #     # Use the documentation formatter for detailed output,
+  #     # unless a formatter has already been configured
+  #     # (e.g. via a command-line flag).
+  #     config.default_formatter = "doc"
+  #   end
+  #
+  #   # Print the 10 slowest examples and example groups at the
+  #   # end of the spec run, to help surface which specs are running
+  #   # particularly slow.
+  #   config.profile_examples = 10
+  #
+  #   # Run specs in random order to surface order dependencies. If you find an
+  #   # order dependency and want to debug it, you can fix the order by providing
+  #   # the seed, which is printed after each run.
+  #   #     --seed 1234
+  #   config.order = :random
+  #
+  #   # Seed global randomization in this process using the `--seed` CLI option.
+  #   # Setting this allows you to use `--seed` to deterministically reproduce
+  #   # test failures related to randomization by passing the same `--seed` value
+  #   # as the one that triggered the failure.
+  #   Kernel.srand config.seed
+end