Add tests for uncovered lines

Author: nalimilan

test/data/wrightbessel.txt

@@ -948,6 +948,8 @@
 9.999999999999779031e-04 1.000000000000000000e+02 1.000000000000000000e+02 1.820115814988793023e-113
 9.999999999999779031e-04 1.000000000000000000e+02 1.000000000000022169e+02 1.820115814992809368e-113
 9.999999999999779031e-04 1.000000000000000000e+02 5.000000000000000000e+02 1.513833561458727729e+60
+1.000000000000000000e-03 0.000000000000000000e+00 1.000000000000000000e-01 0.000110587168259419e+00
+1.000000000000000000e-03 5.000000000000000000e+01 1.000000000000000000e-01 1.816165612793733365e-63
 1.000000000000000021e-03 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00
 1.000000000000000021e-03 0.000000000000000000e+00 2.220446049250313081e-14 2.221726269058290929e-17
 1.000000000000000021e-03 0.000000000000000000e+00 9.999999999999777955e-01 2.721410982168606489e-03
@@ -3178,6 +3180,8 @@
 5.000000000000000000e+00 1.000000000000000000e+00 1.000000000000000000e+03 9.471247399308987625e+00
 5.000000000000000000e+00 1.000000000000000000e+00 1.000000000000000000e+05 2.341370033435922778e+03
 5.000000000000000000e+00 1.000000000000000000e+00 1.000000000000000000e+10 8.941751153921142105e+29
+5.000000000000000000e+00 1.000000000000000000e+00 1.000000000000000000e+11 4.632543335472348000e+44
+5.000000000000000000e+00 1.000000000000000000e+00 1.000000000000000000e+12 2.006119774886239994e+66
 5.000000000000000000e+00 2.000000000000000000e+00 0.000000000000000000e+00 1.000000000000000000e+00
 5.000000000000000000e+00 2.000000000000000000e+00 2.220446049250313081e-14 1.000000000000000000e+00
 5.000000000000000000e+00 2.000000000000000000e+00 9.999999999999777955e-01 1.001388901414951071e+00