! these two tests rely on the first rotation of the first tetromino being the
! 'I' tetromino in its vertical orientation.
-[ 4 ] [ tetrominoes get first states>> first blocks-width ] unit-test
-[ 1 ] [ tetrominoes get first states>> first blocks-height ] unit-test
+{ 4 } [ tetrominoes get first states>> first blocks-width ] unit-test
+{ 1 } [ tetrominoes get first states>> first blocks-height ] unit-test
-[ { 0 0 } ] [ random-tetromino <piece> location>> ] unit-test
-[ 0 ] [ 10 <random-piece> rotation>> ] unit-test
+{ { 0 0 } } [ random-tetromino <piece> location>> ] unit-test
+{ 0 } [ 10 <random-piece> rotation>> ] unit-test
-[ { { 0 0 } { 1 0 } { 2 0 } { 3 0 } } ]
+{ { { 0 0 } { 1 0 } { 2 0 } { 3 0 } } }
[ tetrominoes get first <piece> piece-blocks ] unit-test
-[ { { 0 0 } { 0 1 } { 0 2 } { 0 3 } } ]
+{ { { 0 0 } { 0 1 } { 0 2 } { 0 3 } } }
[ tetrominoes get first <piece> 1 rotate-piece piece-blocks ] unit-test
-[ { { 1 1 } { 2 1 } { 3 1 } { 4 1 } } ]
+{ { { 1 1 } { 2 1 } { 3 1 } { 4 1 } } }
[ tetrominoes get first <piece> { 1 1 } move-piece piece-blocks ] unit-test
-[ 3 ] [ tetrominoes get second <piece> piece-width ] unit-test
-[ 2 ] [ tetrominoes get second <piece> 1 rotate-piece piece-width ] unit-test
+{ 3 } [ tetrominoes get second <piece> piece-width ] unit-test
+{ 2 } [ tetrominoes get second <piece> 1 rotate-piece piece-width ] unit-test