From fc0f53e47c6b5c7e260f9f503a04bab18555c20c Mon Sep 17 00:00:00 2001 From: Josh Smith Date: Sat, 23 Mar 2024 09:55:35 -0700 Subject: [PATCH 1/3] Write new factorial exercise --- recursion/1_factorial/.rspec | 1 + recursion/1_factorial/exercises/factorial.rb | 3 + recursion/1_factorial/spec/factorial_spec.rb | 26 ++++++ recursion/1_factorial/spec/spec_helper.rb | 98 ++++++++++++++++++++ 4 files changed, 128 insertions(+) create mode 100644 recursion/1_factorial/.rspec create mode 100644 recursion/1_factorial/exercises/factorial.rb create mode 100644 recursion/1_factorial/spec/factorial_spec.rb create mode 100644 recursion/1_factorial/spec/spec_helper.rb diff --git a/recursion/1_factorial/.rspec b/recursion/1_factorial/.rspec new file mode 100644 index 0000000000..c99d2e7396 --- /dev/null +++ b/recursion/1_factorial/.rspec @@ -0,0 +1 @@ +--require spec_helper diff --git a/recursion/1_factorial/exercises/factorial.rb b/recursion/1_factorial/exercises/factorial.rb new file mode 100644 index 0000000000..17b5702df8 --- /dev/null +++ b/recursion/1_factorial/exercises/factorial.rb @@ -0,0 +1,3 @@ +def factorial(num) + # write a recursive method for calculating the [factorial](https://simple.wikipedia.org/wiki/Factorial) of a number +end diff --git a/recursion/1_factorial/spec/factorial_spec.rb b/recursion/1_factorial/spec/factorial_spec.rb new file mode 100644 index 0000000000..d357b930ba --- /dev/null +++ b/recursion/1_factorial/spec/factorial_spec.rb @@ -0,0 +1,26 @@ +require "spec_helper" +require_relative "../exercises/factorial" + +RSpec.describe "Factorial" do + describe "factorial exercise" do + it "returns 1 when passed the number 1" do + expect(factorial(1)).to eq(1) + end + + xit "returns 24 when passed the number 4" do + expect(factorial(4)).to eq(24) + end + + xit "returns 3628800 when passed the number 10" do + expect(factorial(10)).to eq(3628800) + end + + xit "returns 1 when passed the number 0" do + expect(factorial(0)).to eq(1) + end + + xit "returns nil when passed a negative number" do + expect(factorial(-5)).to be_nil + end + end +end diff --git a/recursion/1_factorial/spec/spec_helper.rb b/recursion/1_factorial/spec/spec_helper.rb new file mode 100644 index 0000000000..c80d44b974 --- /dev/null +++ b/recursion/1_factorial/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 https://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. +=begin + # 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: + # https://rspec.info/features/3-12/rspec-core/configuration/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 +end From f04ba0a2cf7b7ce8f7fffe22efa08f18779432ac Mon Sep 17 00:00:00 2001 From: Josh Smith Date: Sun, 21 Apr 2024 14:48:07 -0700 Subject: [PATCH 2/3] Update `spec_helper` file --- recursion/1_factorial/spec/spec_helper.rb | 90 ++--------------------- 1 file changed, 5 insertions(+), 85 deletions(-) diff --git a/recursion/1_factorial/spec/spec_helper.rb b/recursion/1_factorial/spec/spec_helper.rb index c80d44b974..71b90cde10 100644 --- a/recursion/1_factorial/spec/spec_helper.rb +++ b/recursion/1_factorial/spec/spec_helper.rb @@ -1,98 +1,18 @@ -# 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 https://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 +end -# The settings below are suggested to provide a good initial experience -# with RSpec, but feel free to customize to your heart's content. -=begin - # 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: - # https://rspec.info/features/3-12/rspec-core/configuration/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" +module FormatterOverrides + def dump_pending(_) 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 end + +RSpec::Core::Formatters::DocumentationFormatter.prepend FormatterOverrides From 7ba071d77861af1d0248325757ae09b4a86cc498 Mon Sep 17 00:00:00 2001 From: Josh Smith Date: Tue, 22 Oct 2024 11:44:04 -0700 Subject: [PATCH 3/3] Add solution for factorial exercise --- solutions/recursion/1_factorial/.rspec | 1 + .../1_factorial/exercises/factorial.rb | 7 +++++ .../1_factorial/spec/factorial_spec.rb | 26 +++++++++++++++++++ .../recursion/1_factorial/spec/spec_helper.rb | 18 +++++++++++++ 4 files changed, 52 insertions(+) create mode 100644 solutions/recursion/1_factorial/.rspec create mode 100644 solutions/recursion/1_factorial/exercises/factorial.rb create mode 100644 solutions/recursion/1_factorial/spec/factorial_spec.rb create mode 100644 solutions/recursion/1_factorial/spec/spec_helper.rb diff --git a/solutions/recursion/1_factorial/.rspec b/solutions/recursion/1_factorial/.rspec new file mode 100644 index 0000000000..c99d2e7396 --- /dev/null +++ b/solutions/recursion/1_factorial/.rspec @@ -0,0 +1 @@ +--require spec_helper diff --git a/solutions/recursion/1_factorial/exercises/factorial.rb b/solutions/recursion/1_factorial/exercises/factorial.rb new file mode 100644 index 0000000000..0e87897203 --- /dev/null +++ b/solutions/recursion/1_factorial/exercises/factorial.rb @@ -0,0 +1,7 @@ +def factorial(num) + # write a recursive method for calculating the [factorial](https://simple.wikipedia.org/wiki/Factorial) of a number + return if num.negative? + return 1 if num <= 1 + + num * factorial(num - 1) +end diff --git a/solutions/recursion/1_factorial/spec/factorial_spec.rb b/solutions/recursion/1_factorial/spec/factorial_spec.rb new file mode 100644 index 0000000000..f89be53f12 --- /dev/null +++ b/solutions/recursion/1_factorial/spec/factorial_spec.rb @@ -0,0 +1,26 @@ +require "spec_helper" +require_relative "../exercises/factorial" + +RSpec.describe "Factorial" do + describe "factorial exercise" do + it "returns 1 when passed the number 1" do + expect(factorial(1)).to eq(1) + end + + it "returns 24 when passed the number 4" do + expect(factorial(4)).to eq(24) + end + + it "returns 3628800 when passed the number 10" do + expect(factorial(10)).to eq(3628800) + end + + it "returns 1 when passed the number 0" do + expect(factorial(0)).to eq(1) + end + + it "returns nil when passed a negative number" do + expect(factorial(-5)).to be_nil + end + end +end diff --git a/solutions/recursion/1_factorial/spec/spec_helper.rb b/solutions/recursion/1_factorial/spec/spec_helper.rb new file mode 100644 index 0000000000..71b90cde10 --- /dev/null +++ b/solutions/recursion/1_factorial/spec/spec_helper.rb @@ -0,0 +1,18 @@ +RSpec.configure do |config| + config.expect_with :rspec do |expectations| + expectations.include_chain_clauses_in_custom_matcher_descriptions = true + end + + config.mock_with :rspec do |mocks| + mocks.verify_partial_doubles = true + end + + config.shared_context_metadata_behavior = :apply_to_host_groups +end + +module FormatterOverrides + def dump_pending(_) + end +end + +RSpec::Core::Formatters::DocumentationFormatter.prepend FormatterOverrides