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path: root/actionpack/test/controller/required_params_test.rb
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require "abstract_unit"

class BooksController < ActionController::Base
  def create
    params.require(:book).require(:name)
    head :ok
  end
end

class ActionControllerRequiredParamsTest < ActionController::TestCase
  tests BooksController

  test "missing required parameters will raise exception" do
    assert_raise ActionController::ParameterMissing do
      post :create, params: { magazine: { name: "Mjallo!" } }
    end

    assert_raise ActionController::ParameterMissing do
      post :create, params: { book: { title: "Mjallo!" } }
    end
  end

  test "required parameters that are present will not raise" do
    post :create, params: { book: { name: "Mjallo!" } }
    assert_response :ok
  end

  test "required parameters with false value will not raise" do
    post :create, params: { book: { name: false } }
    assert_response :ok
  end
end

class ParametersRequireTest < ActiveSupport::TestCase
  test "required parameters should accept and return false value" do
    assert_equal(false, ActionController::Parameters.new(person: false).require(:person))
  end

  test "required parameters must not be nil" do
    assert_raises(ActionController::ParameterMissing) do
      ActionController::Parameters.new(person: nil).require(:person)
    end
  end

  test "required parameters must not be empty" do
    assert_raises(ActionController::ParameterMissing) do
      ActionController::Parameters.new(person: {}).require(:person)
    end
  end

  test "require array when all required params are present" do
    safe_params = ActionController::Parameters.new(person: { first_name: "Gaurish", title: "Mjallo", city: "Barcelona" })
      .require(:person)
      .require([:first_name, :title])

    assert_kind_of Array, safe_params
    assert_equal ["Gaurish", "Mjallo"], safe_params
  end

  test "require array when a required param is missing" do
    assert_raises(ActionController::ParameterMissing) do
      ActionController::Parameters.new(person: { first_name: "Gaurish", title: nil })
        .require(:person)
        .require([:first_name, :title])
    end
  end

  test "value params" do
    params = ActionController::Parameters.new(foo: "bar", dog: "cinco")
    assert_equal ["bar", "cinco"], params.values
    assert params.has_value?("cinco")
    assert params.value?("cinco")
  end

  test "to_param works like in a Hash" do
    params = ActionController::Parameters.new(nested: { key: "value" }).permit!
    assert_equal({ nested: { key: "value" } }.to_param, params.to_param)

    params = { root: ActionController::Parameters.new(nested: { key: "value" }).permit! }
    assert_equal({ root: { nested: { key: "value" } } }.to_param, params.to_param)

    assert_raise(ActionController::UnfilteredParameters) do
      ActionController::Parameters.new(nested: { key: "value" }).to_param
    end
  end

  test "to_query works like in a Hash" do
    params = ActionController::Parameters.new(nested: { key: "value" }).permit!
    assert_equal({ nested: { key: "value" } }.to_query, params.to_query)

    params = { root: ActionController::Parameters.new(nested: { key: "value" }).permit! }
    assert_equal({ root: { nested: { key: "value" } } }.to_query, params.to_query)

    assert_raise(ActionController::UnfilteredParameters) do
      ActionController::Parameters.new(nested: { key: "value" }).to_query
    end
  end
end