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91b6833686
Today, with the tests inside a `tests` intermingled with the
corresponding library's source code, we have a few problems:
- We have to be careful that wildcards don't end up with tests being
built as part of Nix proper, or test headers being installed as part
of Nix proper.
- Tests in libraries but not executables is not right:
- It means each executable runs the previous unit tests again, because
it needs the libraries.
- It doesn't work right on Windows, which doesn't want you to load a
DLL just for the side global variable . It could be made to work
with the dlopen equivalent, but that's gross!
This reorg solves these problems.
There is a remaining problem which is that sibbling headers (like
`hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end
up shadowing each other. This PR doesn't solve that. That is left as
future work for a future PR.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
#include "suggestions.hh"
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#include <gtest/gtest.h>
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namespace nix {
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struct LevenshteinDistanceParam {
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std::string s1, s2;
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int distance;
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};
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class LevenshteinDistanceTest :
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public testing::TestWithParam<LevenshteinDistanceParam> {
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};
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TEST_P(LevenshteinDistanceTest, CorrectlyComputed) {
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auto params = GetParam();
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ASSERT_EQ(levenshteinDistance(params.s1, params.s2), params.distance);
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ASSERT_EQ(levenshteinDistance(params.s2, params.s1), params.distance);
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}
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INSTANTIATE_TEST_SUITE_P(LevenshteinDistance, LevenshteinDistanceTest,
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testing::Values(
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LevenshteinDistanceParam{"foo", "foo", 0},
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LevenshteinDistanceParam{"foo", "", 3},
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LevenshteinDistanceParam{"", "", 0},
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LevenshteinDistanceParam{"foo", "fo", 1},
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LevenshteinDistanceParam{"foo", "oo", 1},
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LevenshteinDistanceParam{"foo", "fao", 1},
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LevenshteinDistanceParam{"foo", "abc", 3}
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)
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);
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TEST(Suggestions, Trim) {
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auto suggestions = Suggestions::bestMatches({"foooo", "bar", "fo", "gao"}, "foo");
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auto onlyOne = suggestions.trim(1);
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ASSERT_EQ(onlyOne.suggestions.size(), 1);
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ASSERT_TRUE(onlyOne.suggestions.begin()->suggestion == "fo");
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auto closest = suggestions.trim(999, 2);
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ASSERT_EQ(closest.suggestions.size(), 3);
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}
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}
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