SWIFT-724 Use --enable-test-discovery to auto-discover tests on Linux (#692)

Author: kmahar

.evergreen/config.yml

@@ -415,9 +415,6 @@ functions:
           ${PREPARE_SHELL}
           SWIFT_VERSION=${SWIFT_VERSION} \
             bash ${PROJECT_DIRECTORY}/.evergreen/install-tools.sh sourcery
-          make linuxmain SOURCERY=${PROJECT_DIRECTORY}/opt/sourcery/bin/sourcery
-          # use regex to ignore lines starting with a /
-          git diff -G "^[^\/].*\n" --exit-code Tests/LinuxMain.swift
           make exports SOURCERY=${PROJECT_DIRECTORY}/opt/sourcery/bin/sourcery
           git diff -G "^[^\/].*\n" --exit-code Sources/MongoSwiftSync/Exports.swift
 

.evergreen/run-ocsp-test.sh

@@ -36,4 +36,4 @@ swift build
 set +o errexit # even if tests fail we want to parse the results, so disable errexit
 set -o pipefail # propagate error codes in the following pipes
 
-swift test --filter=OCSP
+swift test --enable-test-discovery --filter=OCSP

.evergreen/run-serverless-tests.sh

@@ -31,4 +31,4 @@ MONGODB_TOPOLOGY="load_balanced" \
   MONGODB_SCRAM_PASSWORD=${SERVERLESS_ATLAS_PASSWORD} \
   AUTH="auth" \
   SSL="ssl" \
-    swift test --filter="(Crud|Retryable|Transactions|Versioned|Session|LoadBalancer|MongoCursor)"
+    swift test --enable-test-discovery --filter="(Crud|Retryable|Transactions|Versioned|Session|LoadBalancer|MongoCursor)"

.evergreen/run-tests.sh

@@ -54,7 +54,7 @@ fi
 
 MONGODB_TOPOLOGY=${TOPOLOGY} MONGODB_URI=$MONGODB_URI SINGLE_MONGOS_LB_URI=$SINGLE_MONGOS_LB_URI \
 MULTI_MONGOS_LB_URI=$MULTI_MONGOS_LB_URI MONGODB_API_VERSION=$MONGODB_API_VERSION \
-swift test $FILTER_STATEMENT $SANITIZE_STATEMENT 2>&1 | tee ${RAW_TEST_RESULTS}
+swift test --enable-test-discovery $FILTER_STATEMENT $SANITIZE_STATEMENT 2>&1 | tee ${RAW_TEST_RESULTS}
 
 # save tests exit code
 EXIT_CODE=$?

Makefile

@@ -28,9 +28,6 @@ project:
 	@$(call check_for_gem,xcodeproj)
 	ruby etc/add_json_files.rb
 
-linuxmain:
-	$(SOURCERY) --sources Tests/ --exclude-sources Tests/DisabledTests/ --templates Tests/LinuxMain.stencil --output Tests/LinuxMain.swift
-
 exports:
 	$(SOURCERY) --sources Sources/MongoSwift/ --templates Sources/MongoSwiftSync/Exports.stencil --output Sources/MongoSwiftSync/Exports.swift