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describe 'Stack#inspect' do | ||
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before :each do | ||
@stack = Stack.new | ||
end | ||
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it 'should be ()' do | ||
@stack.inspect.should == "()" | ||
RSpec.describe 'Stack#inspect' do | ||
let(:stack) { Stack.new } | ||
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example 'initially is ()' do | ||
expect(stack.inspect).to eq "()" | ||
end | ||
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it 'should be (1)' do | ||
@stack.push 1 | ||
@stack.inspect.should == '(1)' | ||
example 'after pushing 1: (1)' do | ||
stack.push 1 | ||
expect(stack.inspect).to eq '(1)' | ||
end | ||
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it 'should be ({1=>2})' do | ||
@stack.push({1=>2}) | ||
@stack.inspect.should == '({1=>2})' | ||
example 'after pushing a hash: ({1=>2})' do | ||
stack.push({1=>2}) | ||
expect(stack.inspect).to eq '({1=>2})' | ||
end | ||
it 'should be (3)2)1)' do | ||
(1..3).each { |i| @stack.push i } | ||
@stack.inspect.should == '(3)2)1)' | ||
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example 'after pushing 1, then 2, then 3: (3)2)1)' do | ||
(1..3).each { |i| stack.push i } | ||
expect(stack.inspect).to eq '(3)2)1)' | ||
end | ||
it 'should be (5)4)3)2)1)' do | ||
(1..5).each { |i| @stack.push i } | ||
@stack.inspect.should == "(5)4)3)2)1)" | ||
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example 'after pushing 1 through 5: (5)4)3)2)1)' do | ||
(1..5).each { |i| stack.push i } | ||
expect(stack.inspect).to eq "(5)4)3)2)1)" | ||
end | ||
it 'should be (/abc/)3)2)1)' do | ||
(1..3).each { |i| @stack.push i } | ||
@stack.push(/abc/) | ||
@stack.inspect.should == "(/abc/)3)2)1)" | ||
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example 'after pushing 1 through 3, and then /abc/: (/abc/)3)2)1)' do | ||
(1..3).each { |i| stack.push i } | ||
stack.push(/abc/) | ||
expect(stack.inspect).to eq "(/abc/)3)2)1)" | ||
end | ||
it 'should be ([1, 2, 3])"abc")true)false)nil)' do | ||
[nil,false,true,"abc",[1,2,3]].each { |e| @stack.push e } | ||
@stack.inspect.should == '([1, 2, 3])"abc")true)false)nil)' | ||
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example 'after pushing lotsa stuff: ([1, 2, 3])"abc")true)false)nil)' do | ||
[nil, false, true, "abc", [1,2,3]].each { |e| stack.push e } | ||
expect(stack.inspect).to eq '([1, 2, 3])"abc")true)false)nil)' | ||
end | ||
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end | ||
end |
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describe 'context' do | ||
RSpec.describe 'context' do | ||
specify '1_stack_classes_inspect should have been required' do | ||
path = File.dirname(__FILE__) "/../challenge/1_stack_classes_inspect.rb" | ||
path = File.expand_path(path) | ||
$LOADED_FEATURES.map { |filename| File.expand_path filename }.should include path | ||
path = File.expand_path("../../challenge/1_stack_classes_inspect.rb", __FILE__) | ||
expanded_loaded_features = $LOADED_FEATURES.map { |filename| File.expand_path filename } | ||
expect(expanded_loaded_features).to include path | ||
end | ||
end | ||
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describe 'StackInDisguise' do | ||
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RSpec.describe 'StackInDisguise' do | ||
specify 'it should be a subclass of Stack' do | ||
StackInDisguise.superclass.should == Stack | ||
expect(StackInDisguise.superclass).to eq Stack | ||
end | ||
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describe '#inspect' do | ||
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before :each do | ||
@stack = StackInDisguise.new | ||
end | ||
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it 'should be overridden' do | ||
@stack.method(:inspect).owner.should == StackInDisguise | ||
let(:stack) { StackInDisguise.new } | ||
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it 'overrides inspect' do | ||
expect(stack.method(:inspect).owner).to eq StackInDisguise | ||
end | ||
it 'should be []' do | ||
@stack.inspect.should == "[]" | ||
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it 'inspects with square brackets []' do | ||
expect(stack.inspect).to eq "[]" | ||
end | ||
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it 'should be [1]' do | ||
@stack.push 1 | ||
@stack.inspect.should == '[1]' | ||
it 'after pushing 1: [1]' do | ||
stack.push 1 | ||
expect(stack.inspect).to eq '[1]' | ||
end | ||
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it 'should be [{1=>2}]' do | ||
@stack.push({1=>2}) | ||
@stack.inspect.should == '[{1=>2}]' | ||
it 'after pushing a hash: [{1=>2}]' do | ||
stack.push({1=>2}) | ||
expect(stack.inspect).to eq '[{1=>2}]' | ||
end | ||
it 'should be [1, 2, 3]' do | ||
(1..3).each { |i| @stack.push i } | ||
@stack.inspect.should == '[1, 2, 3]' | ||
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it 'after pushing 1, then 2, then 3: [1, 2, 3]' do | ||
(1..3).each { |i| stack.push i } | ||
expect(stack.inspect).to eq '[1, 2, 3]' | ||
end | ||
it 'should be [1, 2, 3, 4, 5]' do | ||
(1..5).each { |i| @stack.push i } | ||
@stack.inspect.should == '[1, 2, 3, 4, 5]' | ||
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it 'after pushing 1 through 5: [1, 2, 3, 4, 5]' do | ||
(1..5).each { |i| stack.push i } | ||
expect(stack.inspect).to eq '[1, 2, 3, 4, 5]' | ||
end | ||
it 'should be [1, 2, 3, /abc/]' do | ||
(1..3).each { |i| @stack.push i } | ||
@stack.push(/abc/) | ||
@stack.inspect.should == '[1, 2, 3, /abc/]' | ||
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it 'after pushing 1 through 3, and then /abc/: [1, 2, 3, /abc/]' do | ||
(1..3).each { |i| stack.push i } | ||
stack.push(/abc/) | ||
expect(stack.inspect).to eq '[1, 2, 3, /abc/]' | ||
end | ||
it 'should be [nil, false, true, "abc", [1, 2, 3]]' do | ||
[nil,false,true,"abc",[1,2,3]].each { |e| @stack.push e } | ||
@stack.inspect.should == '[nil, false, true, "abc", [1, 2, 3]]' | ||
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it 'after pushing lotsa stuff [nil, false, true, "abc", [1, 2, 3]]' do | ||
[nil, false, true, "abc", [1,2,3]].each { |e| stack.push e } | ||
expect(stack.inspect).to eq '[nil, false, true, "abc", [1, 2, 3]]' | ||
end | ||
end | ||
end | ||
end |
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describe 'passthrough' do | ||
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it 'should return what is passed in, if the enum is empty' do | ||
passthrough( Array.new , :passed_in ) { |a,b| :from_block }.should == :passed_in | ||
RSpec.describe 'passthrough' do | ||
it 'returns what is passed in, if the enum is empty' do | ||
result = passthrough([], :passed_in) { |a, b| :from_block } | ||
expect(result).to eq :passed_in | ||
end | ||
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it 'should return 45' do | ||
result = passthrough 5..10 , 0 do |sum,num| | ||
sum num | ||
end | ||
result.should == 45 | ||
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it 'summing 5..10, starting at 0, returns 45' do | ||
result = passthrough(5..10, 0) { |sum, num| sum num } | ||
expect(result).to eq 45 | ||
end | ||
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it 'should pass in the expected params' do | ||
expected_params = [ | ||
0 , 5 , | ||
5 , 6 , | ||
11 , 7 , | ||
18 , 8 , | ||
26 , 9 , | ||
35 , 10 , | ||
it 'summing 5..10 from 0 again, but checking params this time' do | ||
expected_params = [ | ||
0, 5, | ||
5, 6, | ||
11, 7, | ||
18, 8, | ||
26, 9, | ||
35, 10, | ||
] | ||
actual_params = Array.new | ||
result = passthrough 5..10 , 0 do |sum,num| | ||
actual_params = [] | ||
result = passthrough 5..10, 0 do |sum, num| | ||
actual_params << sum << num | ||
sum num | ||
end | ||
actual_params.should == expected_params | ||
expect(actual_params).to eq expected_params | ||
end | ||
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it 'should return {5=>["hound"], 6=>["around"], 3=>["the", "fox", "and", "the", "ran", "all"]}' do | ||
result = passthrough %w(the fox and the hound ran all around) , Hash.new do |words,word| | ||
it '"the fox and the hound ran all around", with words aggregated by length' do | ||
result = passthrough %w(the fox and the hound ran all around), Hash.new do |words, word| | ||
words[word.length] ||= Array.new | ||
words[word.length] << word | ||
words | ||
end | ||
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result.should == { 5 => ["hound"] , 6 => ["around"] , 3 => ["the", "fox", "and", "the", "ran", "all"] } | ||
expect(result).to eq 5 => ["hound"], | ||
6 => ["around"], | ||
3 => ["the", "fox", "and", "the", "ran", "all"] | ||
end | ||
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it 'should return ["Will Jones", "Robert Jones", "John Smith", "Sally Smith"]' do | ||
married_couples = { 'Smith' => ['John' , 'Sally'] , 'Jones' => ['Will','Robert'] } | ||
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people = passthrough married_couples , Array.new do |people,(last_name,first_names)| | ||
it 'passing a hash in, and expanding it to names' do | ||
married_couples = {'Smith' => ['John', 'Sally'], 'Jones' => ['Will', 'Robert']} | ||
people = passthrough married_couples, Array.new do |people, (last_name, first_names)| | ||
full_names = first_names.map { |first_name| "#{first_name} #{last_name}" } | ||
people full_names | ||
end | ||
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people.sort.should == ["Will Jones", "Robert Jones", "John Smith", "Sally Smith"].sort | ||
expect(people).to eq ["John Smith", "Sally Smith", "Will Jones", "Robert Jones"] | ||
end | ||
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end | ||
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@@ -1,12 1,19 @@ | ||
describe 'first_object' do | ||
specify { first_object(1, nil, nil).should == 1 } | ||
specify { first_object(nil, 1, nil).should == 1 } | ||
specify { first_object(nil, nil, 1).should == 1 } | ||
specify { first_object(nil, 1, 2).should == 1 } | ||
specify { first_object(nil, nil, nil).should == nil } | ||
specify { first_object(false, false, false).should == nil } | ||
specify { first_object(false, false, true).should == true } | ||
specify { first_object(5, 4, 3).should == 5 } | ||
specify { first_object(5, nil, 3).should == 5 } | ||
specify { first_object(5, 4, nil).should == 5 } | ||
describe 'first_object' do | ||
def self.assert_first(first, args) | ||
example "first_object(#{args.map(&:inspect).join(", ")}) # => #{first.inspect}" do | ||
obj = first_object(*args) | ||
expect(obj).to eq first | ||
end | ||
end | ||
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assert_first 1, [1, nil, nil] | ||
assert_first 1, [nil, 1, nil] | ||
assert_first 1, [nil, nil, 1] | ||
assert_first 1, [nil, 1, 2] | ||
assert_first nil, [nil, nil, nil] | ||
assert_first nil, [false, false, false] | ||
assert_first true, [false, false, true] | ||
assert_first 5, [5, 4, 3] | ||
assert_first 5, [5, nil, 3] | ||
assert_first 5, [5, 4, nil] | ||
end |
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@@ -1,39 1,26 @@ | ||
require 'pathname' | ||
require 'fileutils' | ||
include FileUtils | ||
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def get_expected_answer(path) | ||
{ | ||
'8.1' => 4399 , | ||
'8.2' => 0 , | ||
'8.3' => 4399 , | ||
'8.4' => 12 , | ||
'8.5' => 3 , | ||
'8.6' => 5 , | ||
'8.7' => 23793343701 , | ||
'8.8' => 880754605216 , | ||
'8.9' => 2987648672 , | ||
}.fetch path[%r(\d \.\d $)] do |problem| | ||
raise "get_expected_answer generated #{problem} from #{path} but #{problem} was not in the expected answer list" | ||
end | ||
end | ||
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resource_dir = Pathname.new(__FILE__).parent.parent 'resources' | ||
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describe 'line_sums' do | ||
Dir[ (resource_dir '*.template').to_s ].each do |template_path| | ||
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real_path = template_path.sub /\.template$/ , '' | ||
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cp template_path , real_path | ||
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it "should return #{get_expected_answer real_path} for #{real_path}" do | ||
line_sums(real_path).should == get_expected_answer(real_path) | ||
rm real_path | ||
expected_answers = { | ||
'8.1' => 4399, | ||
'8.2' => 0, | ||
'8.3' => 4399, | ||
'8.4' => 12, | ||
'8.5' => 3, | ||
'8.6' => 5, | ||
'8.7' => 23793343701, | ||
'8.8' => 880754605216, | ||
'8.9' => 2987648672, | ||
} | ||
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template_pattern = File.expand_path "../../resources/*.template", __FILE__ | ||
Dir[template_pattern].each do |template_path| | ||
real_path = template_path.sub /\.template$/, '' | ||
FileUtils.cp template_path, real_path | ||
expected_answer = expected_answers.fetch real_path[/(\d \.\d $)/] | ||
example "#{real_path} sums to #{expected_answer}" do | ||
expect(line_sums real_path).to eq expected_answer | ||
FileUtils.rm real_path | ||
end | ||
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end | ||
end |
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