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libexpr: fix various overflows and type mismatches

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This commit is contained in:
Philipp Otterbein 2025-06-01 18:40:14 +02:00
parent 587b5f5361
commit afd9c78508
2 changed files with 28 additions and 14 deletions
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11
src/libexpr-tests/primops.cc
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@ -301,6 +301,7 @@ namespace nix {
TEST_F(PrimOpTest, elemtAtOutOfBounds) {
ASSERT_THROW(eval("builtins.elemAt [0 1 2 3] 5"), Error);
ASSERT_THROW(eval("builtins.elemAt [0] 4294967296"), Error);
}
TEST_F(PrimOpTest, head) {
@ -592,6 +593,16 @@ namespace nix {
ASSERT_THAT(v, IsStringEq("n"));
}
TEST_F(PrimOpTest, substringHugeStart){
auto v = eval("builtins.substring 4294967296 5 \"nixos\"");
ASSERT_THAT(v, IsStringEq(""));
}
TEST_F(PrimOpTest, substringHugeLength){
auto v = eval("builtins.substring 0 4294967296 \"nixos\"");
ASSERT_THAT(v, IsStringEq("nixos"));
}
TEST_F(PrimOpTest, substringEmptyString){
auto v = eval("builtins.substring 1 3 \"\"");
ASSERT_THAT(v, IsStringEq(""));