mirror of
https://github.com/NixOS/nix
synced 2025-06-28 22:01:15 +02:00
f3e1c47f47
The short answer for why we need to do this is so we can consistently do `#include "nix/..."`. Without this change, there are ways to still make that work, but they are hacky, and they have downsides such as making it harder to make sure headers from the wrong Nix library (e..g. `libnixexpr` headers in `libnixutil`) aren't being used. The C API alraedy used `nix_api_*`, so its headers are *not* put in subdirectories accordingly. Progress on #7876 We resisted doing this for a while because it would be annoying to not have the header source file pairs close by / easy to change file path/name from one to the other. But I am ameliorating that with symlinks in the next commit.
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
#include <regex>
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#include <gtest/gtest.h>
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#include <rapidcheck/gtest.h>
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#include "nix/tests/derived-path.hh"
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#include "nix/tests/libstore.hh"
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namespace nix {
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class DerivedPathTest : public LibStoreTest
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{
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};
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/**
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* Round trip (string <-> data structure) test for
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* `DerivedPath::Opaque`.
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*/
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TEST_F(DerivedPathTest, opaque) {
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std::string_view opaque = "/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x";
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auto elem = DerivedPath::parse(*store, opaque);
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auto * p = std::get_if<DerivedPath::Opaque>(&elem);
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ASSERT_TRUE(p);
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ASSERT_EQ(p->path, store->parseStorePath(opaque));
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ASSERT_EQ(elem.to_string(*store), opaque);
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}
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/**
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* Round trip (string <-> data structure) test for a simpler
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* `DerivedPath::Built`.
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*/
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TEST_F(DerivedPathTest, built_opaque) {
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std::string_view built = "/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x.drv^bar,foo";
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auto elem = DerivedPath::parse(*store, built);
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auto * p = std::get_if<DerivedPath::Built>(&elem);
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ASSERT_TRUE(p);
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ASSERT_EQ(p->outputs, ((OutputsSpec) OutputsSpec::Names { "foo", "bar" }));
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ASSERT_EQ(*p->drvPath, ((SingleDerivedPath) SingleDerivedPath::Opaque {
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.path = store->parseStorePath(built.substr(0, 49)),
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}));
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ASSERT_EQ(elem.to_string(*store), built);
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}
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/**
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* Round trip (string <-> data structure) test for a more complex,
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* inductive `DerivedPath::Built`.
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*/
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TEST_F(DerivedPathTest, built_built) {
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/**
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* We set these in tests rather than the regular globals so we don't have
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* to worry about race conditions if the tests run concurrently.
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*/
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ExperimentalFeatureSettings mockXpSettings;
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mockXpSettings.set("experimental-features", "dynamic-derivations ca-derivations");
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std::string_view built = "/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x.drv^foo^bar,baz";
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auto elem = DerivedPath::parse(*store, built, mockXpSettings);
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auto * p = std::get_if<DerivedPath::Built>(&elem);
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ASSERT_TRUE(p);
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ASSERT_EQ(p->outputs, ((OutputsSpec) OutputsSpec::Names { "bar", "baz" }));
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auto * drvPath = std::get_if<SingleDerivedPath::Built>(&*p->drvPath);
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ASSERT_TRUE(drvPath);
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ASSERT_EQ(drvPath->output, "foo");
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ASSERT_EQ(*drvPath->drvPath, ((SingleDerivedPath) SingleDerivedPath::Opaque {
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.path = store->parseStorePath(built.substr(0, 49)),
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}));
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ASSERT_EQ(elem.to_string(*store), built);
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}
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/**
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* Without the right experimental features enabled, we cannot parse a
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* complex inductive derived path.
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*/
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TEST_F(DerivedPathTest, built_built_xp) {
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ASSERT_THROW(
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DerivedPath::parse(*store, "/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x.drv^foo^bar,baz"),
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MissingExperimentalFeature);
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}
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#ifndef COVERAGE
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/* TODO: Disabled due to the following error:
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path '00000000000000000000000000000000-0^0' is not a valid store path:
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name '0^0' contains illegal character '^'
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*/
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RC_GTEST_FIXTURE_PROP(
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DerivedPathTest,
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DISABLED_prop_legacy_round_rip,
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(const DerivedPath & o))
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{
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ExperimentalFeatureSettings xpSettings;
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xpSettings.set("experimental-features", "dynamic-derivations");
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RC_ASSERT(o == DerivedPath::parseLegacy(*store, o.to_string_legacy(*store), xpSettings));
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}
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RC_GTEST_FIXTURE_PROP(
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DerivedPathTest,
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prop_round_rip,
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(const DerivedPath & o))
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{
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ExperimentalFeatureSettings xpSettings;
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xpSettings.set("experimental-features", "dynamic-derivations");
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RC_ASSERT(o == DerivedPath::parse(*store, o.to_string(*store), xpSettings));
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}
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#endif
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}
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