Add stroke script CLI edge coverage

tests/CMakeLists.txt

@@ -346,6 +346,16 @@ if(TARGET pano_cli)
     set_tests_properties(pano_cli_apply_stroke_script_roundtrip_smoke PROPERTIES
         LABELS "assets;document;paint;integration;desktop-fast")
 
+    add_test(NAME pano_cli_apply_stroke_script_rejects_tiny_canvas
+        COMMAND "${CMAKE_COMMAND}"
+            -DPANO_CLI=$<TARGET_FILE:pano_cli>
+            -DSTROKE_SCRIPT=${CMAKE_CURRENT_SOURCE_DIR}/data/strokes/two-strokes.ppstroke
+            -DOUTPUT_PATH=${CMAKE_CURRENT_BINARY_DIR}/data/generated/rejected-applied-stroke-script.ppi
+            "-DEXPECTED_OUTPUT=width and height must be between 8 and 4096"
+            -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/expect_pano_cli_apply_stroke_script_failure.cmake")
+    set_tests_properties(pano_cli_apply_stroke_script_rejects_tiny_canvas PROPERTIES
+        LABELS "document;paint;integration;desktop-fast")
+
     add_test(NAME pano_cli_parse_layout_smoke
         COMMAND pano_cli parse-layout --path "${CMAKE_CURRENT_SOURCE_DIR}/data/layouts/simple-layout.xml")
     set_tests_properties(pano_cli_parse_layout_smoke PROPERTIES

tests/cmake/expect_pano_cli_apply_stroke_script_failure.cmake

@@ -0,0 +1,36 @@
+if(NOT DEFINED PANO_CLI)
+    message(FATAL_ERROR "PANO_CLI must be set")
+endif()
+
+if(NOT DEFINED STROKE_SCRIPT)
+    message(FATAL_ERROR "STROKE_SCRIPT must be set")
+endif()
+
+if(NOT DEFINED OUTPUT_PATH)
+    message(FATAL_ERROR "OUTPUT_PATH must be set")
+endif()
+
+if(NOT DEFINED EXPECTED_OUTPUT)
+    message(FATAL_ERROR "EXPECTED_OUTPUT must be set")
+endif()
+
+execute_process(
+    COMMAND "${PANO_CLI}" apply-stroke-script
+        --path "${STROKE_SCRIPT}"
+        --output "${OUTPUT_PATH}"
+        --width 7
+        --height 32
+    RESULT_VARIABLE result
+    OUTPUT_VARIABLE output
+    ERROR_VARIABLE error)
+
+if(result EQUAL 0)
+    message(FATAL_ERROR "Expected pano_cli apply-stroke-script to fail, but it exited 0")
+endif()
+
+set(combined_output "${output}${error}")
+string(FIND "${combined_output}" "${EXPECTED_OUTPUT}" expected_index)
+if(expected_index LESS 0)
+    message(FATAL_ERROR
+        "Expected output to contain '${EXPECTED_OUTPUT}', got: ${combined_output}")
+endif()