3 files changed, 90 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 53d0285..12f3bd5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -577,6 +577,15 @@ if(DEMO_BUILD_TESTS)
         ${GEN_DEMO_CC})
     target_link_libraries(test_texture_manager PRIVATE 3d gpu audio procedural util ${DEMO_LIBS})
     add_dependencies(test_texture_manager generate_demo_assets)
+
+    # Gantt chart output test (bash script)
+    add_test(
+        NAME GanttOutputTest
+        COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/scripts/test_gantt_output.sh
+                $<TARGET_FILE:seq_compiler>
+                ${CMAKE_CURRENT_SOURCE_DIR}/assets/test_gantt.seq
+                ${CMAKE_CURRENT_BINARY_DIR}/test_gantt_output.txt
+    )
 endif()
 
 #-- - Extra Tools -- - 
diff --git a/assets/test_gantt.seq b/assets/test_gantt.seq
new file mode 100644
index 0000000..92f9cfc
--- /dev/null
+++ b/assets/test_gantt.seq
@@ -0,0 +1,11 @@
+# Test sequence file for Gantt chart testing
+# BPM 120
+
+# Simple timeline with two sequences
+SEQUENCE 0.0 0 "Sequence A"
+  EFFECT + FlashEffect 0.0 2.0
+
+SEQUENCE 1.0 0 "Sequence B"
+  EFFECT + PassthroughEffect 0.0 2.0
+
+END_DEMO 4.0
diff --git a/scripts/test_gantt_output.sh b/scripts/test_gantt_output.sh
new file mode 100755
index 0000000..3cfb9c3
--- /dev/null
+++ b/scripts/test_gantt_output.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+# Test script for seq_compiler Gantt chart output
+
+set -e  # Exit on error
+
+# Arguments
+SEQ_COMPILER=$1
+INPUT_SEQ=$2
+OUTPUT_GANTT=$3
+
+if [ -z "$SEQ_COMPILER" ] || [ -z "$INPUT_SEQ" ] || [ -z "$OUTPUT_GANTT" ]; then
+    echo "Usage: $0 <seq_compiler> <input.seq> <output_gantt.txt>"
+    exit 1
+fi
+
+# Clean up any existing output
+rm -f "$OUTPUT_GANTT"
+
+# Run seq_compiler with Gantt output
+"$SEQ_COMPILER" "$INPUT_SEQ" "--gantt=$OUTPUT_GANTT" > /dev/null 2>&1
+
+# Check output file exists
+if [ ! -f "$OUTPUT_GANTT" ]; then
+    echo "ERROR: Gantt output file not created"
+    exit 1
+fi
+
+# Verify key content exists
+ERRORS=0
+
+# Check for timeline header
+if ! grep -q "Demo Timeline Gantt Chart" "$OUTPUT_GANTT"; then
+    echo "ERROR: Missing 'Demo Timeline Gantt Chart' header"
+    ERRORS=$((ERRORS + 1))
+fi
+
+# Check for BPM info
+if ! grep -q "BPM:" "$OUTPUT_GANTT"; then
+    echo "ERROR: Missing 'BPM:' information"
+    ERRORS=$((ERRORS + 1))
+fi
+
+# Check for time axis
+if ! grep -q "Time (s):" "$OUTPUT_GANTT"; then
+    echo "ERROR: Missing 'Time (s):' axis"
+    ERRORS=$((ERRORS + 1))
+fi
+
+# Check for sequence bars (should have '█' characters)
+if ! grep -q "█" "$OUTPUT_GANTT"; then
+    echo "ERROR: Missing sequence visualization bars"
+    ERRORS=$((ERRORS + 1))
+fi
+
+# Check file is not empty
+FILE_SIZE=$(wc -c < "$OUTPUT_GANTT")
+if [ "$FILE_SIZE" -lt 100 ]; then
+    echo "ERROR: Gantt output is too small ($FILE_SIZE bytes)"
+    ERRORS=$((ERRORS + 1))
+fi
+
+if [ $ERRORS -eq 0 ]; then
+    echo "✓ Gantt chart output test passed"
+    exit 0
+else
+    echo "✗ Gantt chart output test failed ($ERRORS errors)"
+    echo "--- Output file contents ---"
+    cat "$OUTPUT_GANTT"
+    exit 1
+fi