I am trying out RSpec with a little tic tac toe game. so far I have this spec
require './tic_tac_toe'
describe TicTacToe do
subject { TicTacToe.new }
context "when starting a new game" do
its(:grid) { should have(9).cells }
its(:grid) { should be_empty }
end
end
this works just fine, but the output is like this (grid shows up two times for one test each) I would like it to show both tests under one grid.
TicTacToe
when starting a new game
grid
should have 9 cells
grid
should be empty
can I write something like this?
its(:grid) { should have(9).cells and should be_empty }
or something like this?
its(:grid) { should have(9).cells and its(:cells) { should be_empty} }
thanks!
EDIT:
I did what I want using this
context "when starting a new game" do
describe "grid" do
subject { @game.grid }
it "should have 9 empty cells" do
should have(9).cells
should be_empty
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end
end
is there a better way to do this, using the its() method?
An its
is equivalent to a describe
and an it
, so I don't think so. You could explicitly write it out like this:
describe TicTacToe do
subject { TicTacToe.new.grid }
context "when starting a new game" do
describe "grid" do
it { should have(9).cells}
it { should be_empty}
end
end
end
I'm a little confused by the spec though, it has 9 cells and is also empty? So I'm not sure this is what you want exactly but the output will be:
TicTacToe
when starting a new game
grid
should have 9 cells
should be empty
This is one way to do what I want.. not using its(), but it's the output I want.
context "when starting a new game" do
describe "grid" do
subject { @game.grid }
it "should have 9 empty cells" do
should have(9).cells
should be_empty
end
end
end
You could but I recommend you shouldn't and here's why:
Currently this:
context "when starting a new game" do
its(:grid) { should have(9).cells }
its(:grid) { should be_empty }
end
will check for the grid having 9 cells and report on that. It will then separately see if the grid is empty.
This will report correctly on conditions such as:
A grid with 9 elements that is empty with => true, true
A grid with 8 elements that is empty with => false,true
A grid with 9 elements that is not empty with => true, false
A grid with 8 elements that is not empty with => false, false
However if you put the conditions together then for the above you'll get single returns such as
=> true
=> false
=> false
=> false
which is not so informatiuve for the falses as you wouldn't have the distinction of which part is false.
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