[ngrams] more node story fixes

Added more tests for more subtle cases.
4 jobs for 281-dev-ngrams-fixes in 68 minutes and 40 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Stack
passed #10335
stack

00:03:58

 
  Cabal
passed #10336
cabal

00:31:33

 
  Bench
passed #10337
bench

00:16:28

 
  Test
failed #10338
test

00:16:40

 
Name Stage Failure
failed
test Test
Test suite garg-test-hspec: PASS
Test suite logged to:
/builds/gargantext/haskell-gargantext/dist-newstyle/build/x86_64-linux/ghc-8.10.7/gargantext-0.0.6.9.9.8.3.4/t/garg-test-hspec/test/gargantext-0.0.6.9.9.8.3.4-garg-test-hspec.log
1 of 1 test suites (1 of 1 test cases) passed.
Error: cabal: Tests failed for test:garg-test-tasty from
gargantext-0.0.6.9.9.8.3.4.

Cleaning up file based variables
ERROR: Job failed: exit code 1