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;; -*- compile-command: "guile -L . combinations-test.scm"; -*-
(use-modules (srfi srfi-64)
(combinations))
(test-begin "harness")
(test-equal "zero combinations"
'(())
(combinations '(1 2 3 4 5) 0))
(test-equal "single combinations"
'((1) (2) (3) (4) (5))
(combinations '(1 2 3 4 5) 1))
(test-equal "double combinations"
'((1 2) (1 3) (1 4) (1 5)
(2 3) (2 4) (2 5)
(3 4) (3 5)
(4 5))
(combinations '(1 2 3 4 5) 2))
(test-equal "triple combinations"
'((1 2 3) (1 2 4) (1 2 5) (1 3 4) (1 3 5) (1 4 5)
(2 3 4) (2 3 5) (2 4 5)
(3 4 5))
(combinations '(1 2 3 4 5) 3))
(test-equal "quadruple combinations"
'((1 2 3 4) (1 2 3 5) (1 2 4 5) (1 3 4 5) (2 3 4 5))
(combinations '(1 2 3 4 5) 4))
(test-equal "quintuple combinations"
'((1 2 3 4 5))
(combinations '(1 2 3 4 5) 5))
(test-equal "combinations numbers"
'((979 366)
(979 675)
(366 675))
(combinations '(979 366 675) 2))
(test-end "harness")
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