ci: try using nextest

Author: dignifiedquire

.config/nextest.toml

@@ -1,5 +1,5 @@
 [test-groups]
-run-in-isolation = { max-threads = 32 } 
+run-in-isolation = { max-threads = 32 }
 # these are tests that must not run with other tests concurrently. All tests in
 # this group can take up at most 32 threads among them, but each one requiring
 # 16 threads also. The effect should be that tests run isolated.
@@ -16,3 +16,15 @@ threads-required = 32
 
 [profile.default]
 slow-timeout = { period = "10s", terminate-after = 3 }
+
+# Wine tests run under Wine emulation which is significantly slower than native.
+# Give tests more time to complete.
+[profile.wine]
+slow-timeout = { period = "60s", terminate-after = 5 }
+# Run tests sequentially - Wine networking can be flaky with concurrent tests.
+test-threads = 1
+
+[[profile.wine.overrides]]
+filter = 'test(::run_in_isolation::)'
+test-group = 'run-in-isolation'
+threads-required = 32

.github/workflows/wine.yaml

@@ -42,20 +42,19 @@ jobs:
       - name: Install mingw-w64
         run: sudo apt-get install -y mingw-w64
 
+      - name: Install cargo-nextest
+        uses: taiki-e/install-action@nextest
+
       - name: Build tests
         # Release mode required - debug builds exceed mingw's export ordinal limit (~65k symbols)
         run: cargo build --target x86_64-pc-windows-gnu --tests -p iroh --release
 
-      - name: List available tests
-        run: |
-          for exe in target/x86_64-pc-windows-gnu/release/deps/iroh-*.exe; do
-            echo "=== Tests in $exe ==="
-            wine "$exe" --list
-          done
-
       - name: Run tests under Wine
-        run: |
-          for exe in target/x86_64-pc-windows-gnu/release/deps/iroh-*.exe; do
-            echo "=== Running $exe ==="
-            wine "$exe" --test-threads=1
-          done
+        env:
+          CARGO_TARGET_X86_64_PC_WINDOWS_GNU_RUNNER: wine
+        run: >
+          cargo nextest run
+          --target x86_64-pc-windows-gnu
+          --profile wine
+          --release
+          -p iroh