third_party/rust/regex-automata/test

   1 #!/bin/bash
   2
   3 # This is a script that attempts to *approximately* exhaustively run the test
   4 # suite for regex-automata. The main reason for why 'cargo test' isn't enough
   5 # is because of crate features. regex-automata has a ton of them. This script
   6 # tests many of those feature combinations (although not all) to try to get
   7 # decent coverage in a finite amount of time.
   8
   9 set -e
  10
  11 # cd to the directory containing this crate's Cargo.toml so that we don't need
  12 # to pass --manifest-path to every `cargo` command.
  13 cd "$(dirname "$0")"
  14
  15 echo "===== ALL FEATURES TEST ==="
  16 cargo test --all-features
  17
  18 # Man I don't *want* to have this many crate features, but... I really want
  19 # folks to be able to slim the crate down to just the things they want. But
  20 # the main downside is that I just can't feasibly test every combination of
  21 # features because there are too many of them. Sad, but I'm not sure if there
  22 # is a better alternative.
  23 features=(
  24   ""
  25   "unicode-word-boundary"
  26   "unicode-word-boundary,syntax,unicode-perl"
  27   "unicode-word-boundary,syntax,dfa-build"
  28   "nfa"
  29   "dfa"
  30   "hybrid"
  31   "nfa,dfa"
  32   "nfa,hybrid"
  33   "dfa,hybrid"
  34   "dfa-onepass"
  35   "nfa-pikevm"
  36   "nfa-backtrack"
  37   "std"
  38   "alloc"
  39   "syntax"
  40   "syntax,nfa-pikevm"
  41   "syntax,hybrid"
  42   "perf-literal-substring"
  43   "perf-literal-multisubstring"
  44   "meta"
  45   "meta,nfa-backtrack"
  46   "meta,hybrid"
  47   "meta,dfa-build"
  48   "meta,dfa-onepass"
  49   "meta,nfa,dfa,hybrid,nfa-backtrack"
  50   "meta,nfa,dfa,hybrid,nfa-backtrack,perf-literal-substring"
  51   "meta,nfa,dfa,hybrid,nfa-backtrack,perf-literal-multisubstring"
  52 )
  53 for f in "${features[@]}"; do
  54   echo "===== LIB FEATURES: $f ==="
  55   # It's actually important to do a standard 'cargo build' in addition to a
  56   # 'cargo test'. In particular, in the latter case, the dev-dependencies may
  57   # wind up enabling features in dependencies (like memchr) that make it look
  58   # like everything is well, but actually isn't. For example, the 'regex-test'
  59   # dev-dependency uses 'bstr' and enables its 'std' feature, which in turn
  60   # unconditionally enables 'memchr's 'std' feature. Since we're specifically
  61   # looking to test that certain feature combinations work as expected, this
  62   # can lead to things testing okay, but would actually fail to build. Yikes.
  63   cargo build --no-default-features --lib --features "$f"
  64   cargo test --no-default-features --lib --features "$f"
  65 done
  66
  67 # We can also run the integration test suite on stripped down features too.
  68 # But the test suite doesn't do well with things like 'std' and 'unicode'
  69 # disabled, so we always enable them.
  70 features=(
  71   "std,unicode,syntax,nfa-pikevm"
  72   "std,unicode,syntax,nfa-backtrack"
  73   "std,unicode,syntax,hybrid"
  74   "std,unicode,syntax,dfa-onepass"
  75   "std,unicode,syntax,dfa-search"
  76   "std,unicode,syntax,dfa-build"
  77   "std,unicode,meta"
  78   # This one is a little tricky because it causes the backtracker to get used
  79   # in more instances and results in failing tests for the 'earliest' tests.
  80   # The actual results are semantically consistent with the API guarantee
  81   # (the backtracker tends to report greater offsets because it isn't an FSM),
  82   # but our tests are less flexible than the API guarantee and demand offsets
  83   # reported by FSM regex engines. (Which is... all of them except for the
  84   # backtracker.)
  85   # "std,unicode,meta,nfa-backtrack"
  86   "std,unicode,meta,hybrid"
  87   "std,unicode,meta,dfa-onepass"
  88   "std,unicode,meta,dfa-build"
  89   "std,unicode,meta,nfa,dfa-onepass,hybrid"
  90 )
  91 for f in "${features[@]}"; do
  92   echo "===== INTEGRATION FEATURES: $f ==="
  93   cargo build --no-default-features --lib --features "$f"
  94   cargo test --no-default-features --test integration --features "$f"
  95 done