rust: translated random test of missingancestors This is a Rust implementation of the random DAG generator and related incrementalmissingancestors tests against a naive brute force implementation. It is provided as an integration test, so that it won't run by default if any unit test fails. In case of a failed example, all needed information for reproduction is included in the panic message, (this is how `test_remove_ancestors_from_case1()` has been generated), as well as the random seed. The whole test is rerunnable by passing the random seed in the TEST_RANDOM_SEED environment variable. The other parameters (numbers of iterations) can be passed in the TEST_MISSING_ANCESTORS environment variable. An alternative would have been to expose to Python MissingAncestors<VecGraphs> but that would have meant pollution of the release build used from Python, whereas we do it in this changeset within the tests submodule Differential Revision: https://phab.mercurial-scm.org/D5417

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[package]

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name = "hg-core"

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version = "0.1.0"

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authors = ["Georges Racinet <gracinet@anybox.fr>"]

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description = "Mercurial pure Rust core library, with no assumption on Python bindings (FFI)"

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[lib]

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name = "hg"

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[dev-dependencies]

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rand = "*"

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rand_pcg = "*"