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Diffstat (limited to 'html-test/src/Properties.hs')
| -rw-r--r-- | html-test/src/Properties.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/html-test/src/Properties.hs b/html-test/src/Properties.hs new file mode 100644 index 00000000..05930ece --- /dev/null +++ b/html-test/src/Properties.hs @@ -0,0 +1,9 @@ +module Properties where + +-- | Fibonacci number of given 'Integer'. +-- +-- prop> fib n <= fib (n + 1) +fib :: Integer -> Integer +fib 0 = 0 +fib 1 = 1 +fib n = fib (n - 1) + fib (n - 2) |