Convert test output to XML on Evergreen

Author: kmahar

.evergreen/config.yml

@@ -102,12 +102,20 @@ functions:
         script: |
           ${PREPARE_SHELL}
           SWIFT_VERSION=${SWIFT_VERSION} \
-          sh ${PROJECT_DIRECTORY}/.evergreen/run-tests.sh
+          ${PROJECT_DIRECTORY}/.evergreen/run-tests.sh
+  
+  "upload test results":
+    - command: attach.xunit_results
+      params:
+        file: ./src/testResults.xml
 
 pre:
   - func: "fetch source"
   - func: "install swift"
 
+post:
+  - func: "upload test results"
+
 tasks:
   - name: "test"
     commands:

.evergreen/run-tests.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 set -o xtrace   # Write all commands first to stderr
 set -o errexit  # Exit the script with error if any of the commands fail
 
@@ -7,6 +7,8 @@ PROJECT_DIRECTORY=${PROJECT_DIRECTORY:-$PWD}
 SWIFT_VERSION=${SWIFT_VERSION:-5.2.4}
 INSTALL_DIR="${PROJECT_DIRECTORY}/opt"
 OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+RAW_TEST_RESULTS="${PROJECT_DIRECTORY}/rawTestResults"
+XML_TEST_RESULTS="${PROJECT_DIRECTORY}/testResults.xml"
 
 # enable swiftenv
 export SWIFTENV_ROOT="${INSTALL_DIR}/swiftenv"
@@ -24,5 +26,19 @@ swiftenv local $SWIFT_VERSION
 # build the driver
 swift build
 
+# even if tests fail we want to parse the results, so disable errexit
+set +o errexit
+# propagate error codes in the following pipes
+set -o pipefail
+
 # test the driver
-swift test --enable-test-discovery
+swift test --enable-test-discovery 2>&1 | tee ${RAW_TEST_RESULTS}
+
+# save tests exit code
+EXIT_CODE=$?
+
+# convert tests to XML
+cat ${RAW_TEST_RESULTS} | swift "${PROJECT_DIRECTORY}/etc/convert-test-results.swift" > ${XML_TEST_RESULTS}
+
+# exit with exit code for running the tests
+exit $EXIT_CODE