Adds an ios-integration-test Makefile target to run on CI (circle.yml)

Makefile

@@ -231,6 +231,10 @@ ios-lint:
 ios-test: $(IOS_PROJ_PATH)
 	set -o pipefail && $(IOS_XCODEBUILD_SIM) -scheme 'CI' test $(XCPRETTY)
 
+.PHONY: ios-integration-test
+ios-integration-test: $(IOS_PROJ_PATH)
+	set -o pipefail && $(IOS_XCODEBUILD_SIM) -scheme 'Integration Test Harness' test $(XCPRETTY)
+
 .PHONY: ios-sanitize-address
 ios-sanitize-address: $(IOS_PROJ_PATH)
 	set -o pipefail && $(IOS_XCODEBUILD_SIM) -scheme 'CI' -enableAddressSanitizer YES test $(XCPRETTY)

circle.yml

@@ -123,6 +123,10 @@ step-library:
       run:
         name: Build ios-test
         command: make ios-test
+  - &build-ios-integration-test
+      run:
+        name: Build ios-integration-test
+        command: make ios-integration-test
   - &build-macos-test
       run:
         name: Build and run macOS tests
@@ -676,6 +680,7 @@ jobs:
       - *restore-cache
       - *reset-ccache-stats
       - *build-ios-test
+      - *build-ios-integration-test
       - *check-public-symbols
       - run:
           name: Lint plist files