+ rm -f "$temp_diff"
+
+ return $ret
+}
+
+# Checks the difference between:
+#
+# 1. What the CLI outputs on its standard output when given the arguments
+# "$@" (excluding the first two arguments).
+# 2. The file with path "$1".
+#
+# And the difference between:
+#
+# 1. What the CLI outputs on its standard error when given the arguments
+# "$@" (excluding the first two arguments).
+# 2. The file with path "$2".
+#
+# Returns 0 if there's no difference, and 1 if there is, also printing
+# said difference to the standard error.
+bt_diff_cli() {
+ local expected_stdout_file="$1"
+ local expected_stderr_file="$2"
+ shift 2
+ local args=("$@")
+
+ local temp_stdout_output_file
+ local temp_stderr_output_file
+ local ret=0
+
+ temp_stdout_output_file="$(mktemp -t actual_stdout.XXXXXX)"
+ temp_stderr_output_file="$(mktemp -t actual_stderr.XXXXXX)"
+
+ # Run the CLI to get a detailed file.
+ run_python_bt2 "$BT_TESTS_BT2_BIN" "${args[@]}" 1>"$temp_stdout_output_file" 2>"$temp_stderr_output_file"
+
+ bt_diff "$expected_stdout_file" "$temp_stdout_output_file" "$expected_stderr_file" "$temp_stderr_output_file" "${args[@]}"
+ ret=$?
+
+ rm -f "$temp_stdout_output_file" "$temp_stderr_output_file"