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, 34 insertions, 0 deletions

diff --git a/toolsrc/src/vcpkg-tests/chrono.cpp b/toolsrc/src/vcpkg-tests/chrono.cpp
new file mode 100644
index 000000000..c164753f9
--- /dev/null
+++ b/toolsrc/src/vcpkg-tests/chrono.cpp
@@ -0,0 +1,34 @@
+#include <vcpkg-tests/catch.h>
+
+#include <vcpkg/base/chrono.h>
+
+namespace Chrono = vcpkg::Chrono;
+
+TEST_CASE ("parse time", "[chrono]")
+{
+    auto timestring = "1990-02-03T04:05:06.0Z";
+    auto maybe_time = Chrono::CTime::parse(timestring);
+
+    REQUIRE(maybe_time.has_value());
+    REQUIRE(maybe_time.get()->to_string() == timestring);
+}
+
+TEST_CASE ("parse blank time", "[chrono]")
+{
+    auto maybe_time = Chrono::CTime::parse("");
+
+    REQUIRE_FALSE(maybe_time.has_value());
+}
+
+TEST_CASE ("difference of times", "[chrono]")
+{
+    auto maybe_time1 = Chrono::CTime::parse("1990-02-03T04:05:06.0Z");
+    auto maybe_time2 = Chrono::CTime::parse("1990-02-10T04:05:06.0Z");
+
+    REQUIRE(maybe_time1.has_value());
+    REQUIRE(maybe_time2.has_value());
+
+    auto delta = maybe_time2.get()->to_time_point() - maybe_time1.get()->to_time_point();
+
+    REQUIRE(std::chrono::duration_cast<std::chrono::hours>(delta).count() == 24 * 7);
+}