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tree_int64_test.root has a Long64_t branch with values around the 2^32 and 2^53 boundaries and INT64_MIN/MAX, written by tree_int64_test.cxx with ROOT 6.40. tree_int64_test.js reads them back and exits with an error on any mismatch. Covers the ntoi8 fix from root-project#422.
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This Pull request:
adds the CI test asked for in #422.
Changes:
demo/node/tree_int64_test.root- small tree (5.5 KB) with oneLong64_tbranch, 14 entries: 0, ±1, -2, -2^31, -2^32, -2^32-1, -5e9, -(2^53-1), -2^53, INT64_MIN, 2^32, 2^53-1, INT64_MAXdemo/node/tree_int64_test.cxx- macro that makes the file (ROOT 6.40)demo/node/tree_int64_test.js- reads the branch withtreeProcessand compares every entry to the expected value. on any mismatch it prints FAILURE and doesprocess.exit(1)so the CI job actually goes redjsroot-ci.yml, right afterrntuple_test.jsi checked it both ways. on current master all 14 entries pass. with the old
ntoi8()put back it fails on 4 of them (-2^32 reads as 0, the two values near -2^53 and INT64_MIN are off by 2^32) and exits with 1.