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agregado archivo test de pila #7

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agregado archivo test de pila #7

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26 changes: 26 additions & 0 deletions stack_test.rb
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Original file line number Diff line number Diff line change
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require "./stack"
require "minitest"
require "minitest/autorun"

class TestStack < Minitest::Test
def setup
@stack = Stack.new
end

def test_that_returns_nil_from_empty_stack
assert_nil @stack.pop
end

def test_that_can_push_and_pop_one_item
@stack.push(1)
assert_equal 1, @stack.pop
end

def test_that_can_push_and_pop_multiple_items
@stack.push(1)
@stack.push(2)
assert_equal 2, @stack.pop
assert_equal 1, @stack.pop
end

end