eldritch horrors
d6a203b795
ifd requires building which uses async code today, fetching requires network io which really should use async code but does not yet. eval itself cannot be made async for performance reasons. offloading work to other threads is possible but questionable as currently there are no uses in which evaluation must take place from within asynchronous operations, which are currently confined entirely to store behavior. Change-Id: I1e3c86fca19b042d79332e9a5ef9546f90a6448b
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
#include <iostream>
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#include <memory>
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#include <string_view>
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#include <boost/core/demangle.hpp>
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#include <gtest/gtest.h>
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#include "lix/libcmd/common-eval-args.hh"
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#include "lix/libexpr/eval.hh"
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#include "lix/libstore/filetransfer.hh"
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#include "lix/libmain/shared.hh"
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#include "lix/libstore/store-api.hh"
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constexpr std::string_view INVALID_CHANNEL = "channel:example";
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constexpr std::string_view CHANNEL_URL = "https://nixos.org/channels/example/nixexprs.tar.xz";
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namespace nix
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{
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TEST(Arguments, lookupFileArg) {
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AsyncIoRoot aio;
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initNix();
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initLibExpr();
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std::string const unitDataPath = getEnv("_NIX_TEST_UNIT_DATA").value();
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// Meson should be allowed to pass us a relative path here tbh.
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auto const canonDataPath = CanonPath::fromCwd(unitDataPath);
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std::string const searchPathElem = fmt("example=%s", unitDataPath);
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SearchPath searchPath;
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searchPath.elements.push_back(SearchPath::Elem::parse(searchPathElem));
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auto store = openStore("dummy://");
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auto state = std::make_shared<Evaluator>(aio, searchPath, store, store);
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SourcePath const foundUnitData = lookupFileArg(*state, "<example>");
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EXPECT_EQ(foundUnitData.canonical(), canonDataPath);
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// lookupFileArg should not resolve <search paths> if anything else is before or after it.
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SourcePath const yepEvenSpaces = lookupFileArg(*state, " <example>");
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EXPECT_EQ(yepEvenSpaces.canonical(), CanonPath::fromCwd(" <example>"));
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EXPECT_EQ(lookupFileArg(*state, "<example>/nixos").canonical(), CanonPath::fromCwd("<example>/nixos"));
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try {
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lookupFileArg(*state, INVALID_CHANNEL);
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} catch (FileTransferError const & ex) {
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std::string_view const msg(ex.what());
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EXPECT_NE(msg.find(CHANNEL_URL), msg.npos);
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}
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SourcePath const normalFile = lookupFileArg(*state, unitDataPath);
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EXPECT_EQ(normalFile.canonical(), canonDataPath);
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}
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}
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