test(compiler): cover fixed CIE behavior and runtime boundaries

Record independently traced outputs with pending human review. Keep
standard syntax and naming conflicts as real failures.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/i/text-files/program.cps b/tests/i/text-files/program.cps
new file mode 100644
index 0000000..1d6d5bb
--- /dev/null
+++ b/tests/i/text-files/program.cps
@@ -0,0 +1,26 @@
+DECLARE Line : STRING
+DECLARE Count : INTEGER
+OPENFILE "input.txt" FOR READ
+Count <- 0
+WHILE NOT EOF("input.txt") DO
+    READFILE "input.txt", Line
+    OUTPUT "[", Line, "]"
+    Count <- Count + 1
+ENDWHILE
+CLOSEFILE "input.txt"
+OPENFILE "empty.txt" FOR READ
+OUTPUT EOF("empty.txt"), ":", Count
+CLOSEFILE "empty.txt"
+OPENFILE "result.txt" FOR WRITE
+WRITEFILE "result.txt", "first"
+WRITEFILE "result.txt", ""
+CLOSEFILE "result.txt"
+OPENFILE "result.txt" FOR APPEND
+WRITEFILE "result.txt", "last"
+CLOSEFILE "result.txt"
+OPENFILE "result.txt" FOR READ
+WHILE NOT EOF("result.txt") DO
+    READFILE "result.txt", Line
+    OUTPUT "[", Line, "]"
+ENDWHILE
+CLOSEFILE "result.txt"