sudoku-crystal/spec/parse_spec.cr

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1.5 KiB
Crystal

require "./spec_helper"
describe Sudoku::Parser do
it "should parse an empty board" do
board_string = "....\n....\n....\n...."
board = Sudoku::Parser.parse(board_string, block_size: 2)
board.size.should eq 4
board.block_size.should eq 2
(0..3).each { |x|
(0..3).each { |y|
board.get(x, y).should eq nil
}
}
end
it "should raise an exception if number of rows and colums is different" do
expect_raises(Sudoku::ParseException) do
Sudoku::Parser.parse("....\n....", block_size: 2)
end
end
it "should put numbers correctly on the board" do
board_string = "1...\n.2..\n..3.\n...4"
board = Sudoku::Parser.parse(board_string, block_size: 2)
board.get(0,0).should eq 1
board.get(1,1).should eq 2
board.get(2,2).should eq 3
board.get(3,3).should eq 4
end
it "should raise an exception if a cell contains a character that is not a number or a dot" do
expect_raises(Sudoku::ParseException) do
Sudoku::Parser.parse(".A..\n....\n....\n....", block_size: 2)
end
end
it "should parse 9x9 boards correctly" do
board_string =
"8........\n" \
"..36.....\n" \
".7..9.2..\n" \
".5...7...\n" \
"....457..\n" \
"...1...3.\n" \
"..1....68\n" \
"..85...1.\n" \
".9....4.."
board = Sudoku::Parser.parse(board_string, block_size: 3)
board.get(0,0).should eq 8
board.get(2,1).should eq 3
board.get(3,1).should eq 6
board.get(1,2).should eq 7
board.get(4,2).should eq 9
board.get(8,8).should eq nil
end
end