diff --git a/.gitignore b/.gitignore
index 43e314d..9f7143c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -91,5 +91,8 @@ iOSInjectionProject/
 
 coverage.txt
 percentage.txt
+coverage-ui.txt
+percentage-ui.txt
 .DerivedData-macOS/
+.DerivedData-macOS-ui/
 .DerivedData-iOS/
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 74a3960..0e62ba0 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,19 @@ test-macos:
 		-destination platform="$(PLATFORM_MACOS)" \
 		-enableCodeCoverage YES
 
+test-macos-ui:
+	xcodebuild clean \
+		-project KnobDemo/KnobDemo.xcodeproj \
+		-scheme KnobDemo_macOS \
+		-derivedDataPath "$(PWD)/.DerivedData-macos-ui" \
+		-destination platform="$(PLATFORM_MACOS)"
+	xcodebuild test \
+		-project KnobDemo/KnobDemo.xcodeproj \
+		-scheme KnobDemo_macOS \
+		-derivedDataPath "$(PWD)/.DerivedData-macos-ui" \
+		-destination platform="$(PLATFORM_MACOS)" \
+		-enableCodeCoverage YES
+
 test-linux:
 	docker build -t swiftlang -f swiftlang.dockerfile .
 	docker run \
@@ -45,6 +58,10 @@ coverage: test-macos
 	$(COV) Knob-macOS $(PWD)/.DerivedData-macos/Logs/Test/*.xcresult > coverage.txt
 	cat coverage.txt
 
+coverage-ui: test-macos-ui
+	$(COV) Knob-macOS $(PWD)/.DerivedData-macos-ui/Logs/Test/*.xcresult > coverage-ui.txt
+	cat coverage-ui.txt
+
 # Visit each line in coverage report that starts with a number, and add the coverage percentage
 # (skipping the one that involves the SwiftUI containers). Print the average at the end.
 AWK_CMD = 'END {print sum / count;} /^[1-9]/ { if ($$2 !~ /KnobView/) { sum+=$$4; count+=1; } }'
@@ -53,6 +70,10 @@ percentage: coverage
 	awk $(AWK_CMD) coverage.txt > percentage.txt
 	cat percentage.txt
 
+percentage-ui: coverage-ui
+	awk $(AWK_CMD) coverage-ui.txt > percentage-ui.txt
+	cat percentage-ui.txt
+
 test: test-ios test-tvos percentage
 
 .PHONY: test test-ios test-macos test-tvos coverage percentage test-linux test-swift