✅ added more tests from recent nst's JSONTestSuite

test/data/nst_json_testsuite2/README.md

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+# JSON Parsing Test Suite
+A comprehensive test suite for RFC 8259 compliant JSON parsers
+
+This repository was created as an appendix to the article [Parsing JSON is a Minefield 💣](http://seriot.ch/parsing_json.php).
+
+**/parsers/**
+
+This directory contains several parsers and tiny wrappers to turn the parsers into JSON validators, by returning a specific value.
+
+- `0` the parser did accept the content
+- `1` the parser did reject the content
+- `>1` the process did crash
+- `timeout` happens after 5 seconds
+
+**/test\_parsing/**
+
+The name of these files tell if their contents should be accepted or rejected.
+
+- `y_` content must be accepted by parsers
+- `n_` content must be rejected by parsers
+- `i_` parsers are free to accept or reject content
+
+**/test\_transform/**
+
+These files contain weird structures and characters that parsers may understand differently, eg:
+
+- huge numbers
+- dictionaries with similar keys
+- NULL characters
+- escaped invalid strings
+
+These files were used to produce `results/transform.html`.
+
+**/run_tests.py**
+
+Run all parsers with all files:
+
+    $ python3 run_tests.py
+
+Run all parsers with a specific file:
+
+    $ python3 run_tests.py file.json
+
+Run specific parsers with all files:
+
+    $ echo '["Python 2.7.10", "Python 3.5.2"]' > python_only.json
+    $ python3 run_tests.py --filter=python_only.json
+
+The script writes logs in `results/logs.txt`.
+
+The script then reads `logs.txt` and generates `results/parsing.html`.
+
+**/results/**
+
+<img src="results/pruned_results.png" alt="JSON Parsing Tests" />