Rewrite the tests! now they're cross-platform! (#7315)

* begin exploratory rewriting of tests

* continue working on tests

* more test work! holy butts vcpkg-tests/plan.cpp was a bunch of work

* finish writing new tests

  - [x] write catch2 tests
  - [ ] rewrite/at least delete the VS project files
  - [ ] document running tests

* Fix tests to work on WSL, rewrite test vcxproj

still need to test on macOS
also, delete tests.pch.h

* Condense add_test calls

1 files changed, 102 insertions, 0 deletions

diff --git a/toolsrc/src/vcpkg-tests/update.cpp b/toolsrc/src/vcpkg-tests/update.cpp
new file mode 100644
index 000000000..93a8f74a9
--- /dev/null
+++ b/toolsrc/src/vcpkg-tests/update.cpp
@@ -0,0 +1,102 @@
+#include <vcpkg-tests/catch.h>
+#include <vcpkg-tests/util.h>
+
+#include <vcpkg/base/sortedvector.h>
+
+#include <vcpkg/update.h>
+
+using namespace vcpkg;
+using namespace vcpkg::Update;
+using namespace vcpkg::Test;
+
+using Pgh = std::vector<std::unordered_map<std::string, std::string>>;
+
+TEST_CASE ("find outdated packages basic", "[update]")
+{
+    std::vector<std::unique_ptr<StatusParagraph>> status_paragraphs;
+    status_paragraphs.push_back(make_status_pgh("a"));
+    status_paragraphs.back()->package.version = "2";
+
+    StatusParagraphs status_db(std::move(status_paragraphs));
+
+    std::unordered_map<std::string, SourceControlFileLocation> map;
+    auto scf = unwrap(SourceControlFile::parse_control_file(Pgh{{{"Source", "a"}, {"Version", "0"}}}));
+    map.emplace("a", SourceControlFileLocation{std::move(scf), ""});
+    Dependencies::MapPortFileProvider provider(map);
+
+    auto pkgs = SortedVector<OutdatedPackage>(Update::find_outdated_packages(provider, status_db),
+                                              &OutdatedPackage::compare_by_name);
+
+    REQUIRE(pkgs.size() == 1);
+    REQUIRE(pkgs[0].version_diff.left.to_string() == "2");
+    REQUIRE(pkgs[0].version_diff.right.to_string() == "0");
+}
+
+TEST_CASE ("find outdated packages features", "[update]")
+{
+    std::vector<std::unique_ptr<StatusParagraph>> status_paragraphs;
+    status_paragraphs.push_back(make_status_pgh("a"));
+    status_paragraphs.back()->package.version = "2";
+
+    status_paragraphs.push_back(make_status_feature_pgh("a", "b"));
+    status_paragraphs.back()->package.version = "2";
+
+    StatusParagraphs status_db(std::move(status_paragraphs));
+
+    std::unordered_map<std::string, SourceControlFileLocation> map;
+    auto scf = unwrap(SourceControlFile::parse_control_file(Pgh{{{"Source", "a"}, {"Version", "0"}}}));
+    map.emplace("a", SourceControlFileLocation{std::move(scf), ""});
+    Dependencies::MapPortFileProvider provider(map);
+
+    auto pkgs = SortedVector<OutdatedPackage>(Update::find_outdated_packages(provider, status_db),
+                                              &OutdatedPackage::compare_by_name);
+
+    REQUIRE(pkgs.size() == 1);
+    REQUIRE(pkgs[0].version_diff.left.to_string() == "2");
+    REQUIRE(pkgs[0].version_diff.right.to_string() == "0");
+}
+
+TEST_CASE ("find outdated packages features 2", "[update]")
+{
+    std::vector<std::unique_ptr<StatusParagraph>> status_paragraphs;
+    status_paragraphs.push_back(make_status_pgh("a"));
+    status_paragraphs.back()->package.version = "2";
+
+    status_paragraphs.push_back(make_status_feature_pgh("a", "b"));
+    status_paragraphs.back()->package.version = "0";
+    status_paragraphs.back()->state = InstallState::NOT_INSTALLED;
+    status_paragraphs.back()->want = Want::PURGE;
+
+    StatusParagraphs status_db(std::move(status_paragraphs));
+
+    std::unordered_map<std::string, SourceControlFileLocation> map;
+    auto scf = unwrap(SourceControlFile::parse_control_file(Pgh{{{"Source", "a"}, {"Version", "0"}}}));
+    map.emplace("a", SourceControlFileLocation{std::move(scf), ""});
+    Dependencies::MapPortFileProvider provider(map);
+
+    auto pkgs = SortedVector<OutdatedPackage>(Update::find_outdated_packages(provider, status_db),
+                                              &OutdatedPackage::compare_by_name);
+
+    REQUIRE(pkgs.size() == 1);
+    REQUIRE(pkgs[0].version_diff.left.to_string() == "2");
+    REQUIRE(pkgs[0].version_diff.right.to_string() == "0");
+}
+
+TEST_CASE ("find outdated packages none", "[update]")
+{
+    std::vector<std::unique_ptr<StatusParagraph>> status_paragraphs;
+    status_paragraphs.push_back(make_status_pgh("a"));
+    status_paragraphs.back()->package.version = "2";
+
+    StatusParagraphs status_db(std::move(status_paragraphs));
+
+    std::unordered_map<std::string, SourceControlFileLocation> map;
+    auto scf = unwrap(SourceControlFile::parse_control_file(Pgh{{{"Source", "a"}, {"Version", "2"}}}));
+    map.emplace("a", SourceControlFileLocation{std::move(scf), ""});
+    Dependencies::MapPortFileProvider provider(map);
+
+    auto pkgs = SortedVector<OutdatedPackage>(Update::find_outdated_packages(provider, status_db),
+                                              &OutdatedPackage::compare_by_name);
+
+    REQUIRE(pkgs.size() == 0);
+}