eldritch horrors
540071dd77
with impure derivations gone we move on to dynamic derivations. this too is not done in a single commit because dynamic derivations are invasive, modifying semantics of all references to derivation output paths and all derivation dependency calculations. removing dynamic derivations cleanly is made significantly harder by the multiple did-you-mean-sum types, aka "wrappers for std::variant", holding all derivation outpath information. Change-Id: Ice7a7700c7b54c6a6061d4beb322b4175923d27a
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
#include <regex>
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#include <gtest/gtest.h>
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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#include <rapidcheck/gtest.h>
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#pragma GCC diagnostic pop
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#include "tests/derived-path.hh"
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#include "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.experimentalFeatures.override(
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ExperimentalFeatures{} | Xp::DynamicDerivations | Xp::CaDerivations
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);
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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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/**
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* Built paths with a non-derivation base should fail parsing.
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*/
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TEST_F(DerivedPathTest, non_derivation_base) {
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ASSERT_THROW(
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DerivedPath::parse(*store, "/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x^foo"),
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InvalidPath);
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}
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#ifndef COVERAGE
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RC_GTEST_FIXTURE_PROP(
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DerivedPathTest,
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prop_legacy_round_rip,
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(const DerivedPath & o))
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{
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RC_ASSERT(o == DerivedPath::parseLegacy(*store, o.to_string_legacy(*store)));
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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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RC_ASSERT(o == DerivedPath::parse(*store, o.to_string(*store)));
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}
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#endif
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}
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