Finally it works!
Thank you for your feedback and for your kata.

I think my problem where with big integers!

Ok!
Now I pass the -1 to -50 but I fail on the random.

Thank you I am going to see why!

Ok bkaes!
I think I am no stuck, I want to know if the value that gives as a solution -45537549124 is -51, like this test:

Test.assertEquals(lucasnum(-51), -45537549124)

NaMe613, I pass 57 tests before the first fail.

The test that fails says:

Expected: -45537549124, instead got: 28143753123

Thank you for your feedback.

Thanks for your answer.
The test that says failed is this one: Test.assertEquals(lucasnum(-51), -45537549124) ?

-50 to -1
Expected: -45537549124, instead got: 28143753123
Which other number can bring me the -45537549124 if is not the -51 ?

I try with my own test:
Test.assertEquals(lucasnum(-51), -45537549124)
And works...

Thank you for your feedback

Hi,
I have tried the tests but I got failed message:
-50 to -1
Expected: -45537549124, instead got: 28143753123
Test Passed: Value == 28143753123
Test Passed: Value == -17393796001
Test Passed: Value == 10749957122

I have passed my own tests.
Are these tests ok?
Test.assertEquals(lucasnum(-51), -45537549124)
Test.assertEquals(lucasnum(-50), 28143753123)
Test.assertEquals(lucasnum(-49), -17393796001)
Test.assertEquals(lucasnum(-48), 10749957122)
Test.assertEquals(lucasnum(-47), -6643838879)
Test.assertEquals(lucasnum(-46), 4106118243)
Test.assertEquals(lucasnum(-45), -2537720636)
Test.assertEquals(lucasnum(-44), 1568397607)
Test.assertEquals(lucasnum(-43), -969323029)
Test.assertEquals(lucasnum(-42), 599074578)
Test.assertEquals(lucasnum(-41), -370248451)
Test.assertEquals(lucasnum(-40), 228826127)
Test.assertEquals(lucasnum(-39), -141422324)
Test.assertEquals(lucasnum(-38), 87403803)
Test.assertEquals(lucasnum(-37), -54018521)
Test.assertEquals(lucasnum(-36), 33385282)
Test.assertEquals(lucasnum(-35), -20633239)
Test.assertEquals(lucasnum(-34), 12752043)
Test.assertEquals(lucasnum(-33), -7881196)
Test.assertEquals(lucasnum(-32), 4870847)
Test.assertEquals(lucasnum(-31), -3010349)
Test.assertEquals(lucasnum(-30), 1860498)
Test.assertEquals(lucasnum(-29), -1149851)
Test.assertEquals(lucasnum(-28), 710647)
Test.assertEquals(lucasnum(-27), -439204)
Test.assertEquals(lucasnum(-26), 271443)
Test.assertEquals(lucasnum(-25), -167761)
Test.assertEquals(lucasnum(-24), 103682)
Test.assertEquals(lucasnum(-23), -64079)
Test.assertEquals(lucasnum(-22), 39603)
Test.assertEquals(lucasnum(-21), -24476)
Test.assertEquals(lucasnum(-20), 15127)
Test.assertEquals(lucasnum(-19), -9349)
Test.assertEquals(lucasnum(-18), 5778)
Test.assertEquals(lucasnum(-17), -3571)
Test.assertEquals(lucasnum(-16), 2207)
Test.assertEquals(lucasnum(-15), -1364)
Test.assertEquals(lucasnum(-14), 843)
Test.assertEquals(lucasnum(-13), -521)
Test.assertEquals(lucasnum(-12), 322)
Test.assertEquals(lucasnum(-11), -199)
Test.assertEquals(lucasnum(-10), 123)
Test.assertEquals(lucasnum(-9), -76)
Test.assertEquals(lucasnum(-8), 47)
Test.assertEquals(lucasnum(-7), -29)
Test.assertEquals(lucasnum(-6), 18)
Test.assertEquals(lucasnum(-5), -11)
Test.assertEquals(lucasnum(-4), 7)
Test.assertEquals(lucasnum(-3), -4)
Test.assertEquals(lucasnum(-2), 3)
Test.assertEquals(lucasnum(-1), -1)