fix(input): 대화형 메뉴 입력을 1/2로 제한

.jules/sentinel.md

@@ -2,3 +2,8 @@
 **Vulnerability:** Unvalidated inputs passed to `if()` statements can cause process crashes (`condition has length > 1`) or unexpected coercion vulnerabilities.
 **Learning:** In R, optional boolean parameters that default to `NULL` should be validated using explicit runtime type validation (e.g., `if (!is.null(flag) && (!is.logical(flag) || length(flag) != 1 || is.na(flag)))`).
 **Prevention:** Always implement explicit runtime type validation for optional boolean parameters.
+
+## 2024-09-10 - [LOW] Strict interactive input validation
+**Vulnerability:** (Correctness/Input Validation) Weak regex `^[0-9]+$` on interactive inputs allowed arbitrary integers, bypassing menu constraints and potentially causing unexpected downstream behavior.
+**Learning:** Always use strictly bounded exact-match regex (e.g., `^[12]$`) when checking `readline()` inputs for constrained menu options.
+**Prevention:** Use stricter regex validations for interactive prompts rather than general numeric validations.

DESCRIPTION

@@ -10,7 +10,7 @@ Description: Automates fixed item parameter linking for test linking under
     the item response theory paradigm using mirt package estimates.
 License: GPL-3 | file LICENSE
 Imports: mirt, methods
-Suggests: testthat (>= 3.0.0)
+Suggests: testthat (>= 3.0.0), mockery
 Encoding: UTF-8
 Config/testthat/edition: 3
 Config/roxygen2/version: 8.0.0

R/aFIPC.R

@@ -141,7 +141,7 @@ autoFIPC <-
       }
       for (attempt in seq_len(3)) {
         n <- readline(prompt = "Is it correct? (1: Yes 2: No) : ")
-        if (grepl("^[0-9]+$", n)) {
+        if (grepl("^[12]$", n)) {
           return(as.integer(n))
         }
       }
@@ -171,7 +171,7 @@ autoFIPC <-
               readline(
                 prompt = "Do you want to use default BILOG-MG priors for oldform Data? (1: Yes 2: No) : "
               )
-            if (grepl("^[0-9]+$", n)) {
+            if (grepl("^[12]$", n)) {
               return(as.integer(n))
             }
           }
@@ -390,7 +390,7 @@ autoFIPC <-
               readline(
                 prompt = "Do you want to use default BILOG-MG priors for newform Data? (1: Yes 2: No) : "
               )
-            if (grepl("^[0-9]+$", n)) {
+            if (grepl("^[12]$", n)) {
               return(as.integer(n))
             }
           }

tests/testthat/test-sentinel-validation.R

@@ -1,7 +1,7 @@
 test_that("autoFIPC validates boolean flags for newformBILOGprior, oldformBILOGprior, and confirmCommonItems", {
   # newformBILOGprior
   expect_error(
-    aFIPC::autoFIPC(
+    autoFIPC(
       newformXData = data.frame(A=1),
       oldformYData = data.frame(A=2),
       newformCommonItemNames = c('A'),
@@ -13,7 +13,7 @@ test_that("autoFIPC validates boolean flags for newformBILOGprior, oldformBILOGp
 
   # oldformBILOGprior
   expect_error(
-    aFIPC::autoFIPC(
+    autoFIPC(
       newformXData = data.frame(A=1),
       oldformYData = data.frame(A=2),
       newformCommonItemNames = c('A'),
@@ -25,7 +25,7 @@ test_that("autoFIPC validates boolean flags for newformBILOGprior, oldformBILOGp
 
   # confirmCommonItems
   expect_error(
-    aFIPC::autoFIPC(
+    autoFIPC(
       newformXData = data.frame(A=1),
       oldformYData = data.frame(A=2),
       newformCommonItemNames = c('A'),
@@ -35,3 +35,45 @@ test_that("autoFIPC validates boolean flags for newformBILOGprior, oldformBILOGp
     "Security Error: confirmCommonItems must be a single non-NA logical value or NULL"
   )
 })
+
+
+
+
+test_that("autoFIPC strictly validates interactive readline confirmation inputs", {
+  # Mock valid "1" responses to pass the three interactive prompts
+  mockery::stub(autoFIPC, 'readline', mockery::mock('1', '1', '1'))
+  mockery::stub(autoFIPC, 'interactive', function() TRUE)
+
+  # The test should proceed past the interactive prompts and fail downstream,
+  # indicating that the valid exact-match response '1' was accepted.
+  err <- tryCatch({
+    autoFIPC(
+      newformXData = data.frame(A=1),
+      oldformYData = data.frame(A=2),
+      newformCommonItemNames = c('A'),
+      oldformCommonItemNames = c('A')
+    )
+    "No error"
+  }, error = function(e) e$message)
+
+  expect_false(grepl("Too many invalid common item confirmation attempts", err))
+})
+
+test_that("autoFIPC correctly rejects invalid numeric inputs and hits the retry limit", {
+  # Mock invalid inputs: '0', '3', '9999999999' (out of range), 'abc' (non-numeric), '' (whitespace/empty)
+  # The loop tries 3 times. We just need to fail the first prompt (checkCorrect) 3 times.
+  mockery::stub(autoFIPC, 'readline', mockery::mock('0', '3', '9999999999'))
+  mockery::stub(autoFIPC, 'interactive', function() TRUE)
+
+  err <- tryCatch({
+    autoFIPC(
+      newformXData = data.frame(A=1),
+      oldformYData = data.frame(A=2),
+      newformCommonItemNames = c('A'),
+      oldformCommonItemNames = c('A')
+    )
+    "No error"
+  }, error = function(e) e$message)
+
+  expect_true(grepl("Too many invalid common item confirmation attempts", err))
+})