tests: move input-tty into a test-lib.sh function

* tests/test-lib.sh (require_controlling_input_terminal_): New function, from
* tests/input-tty: ...here.  Remove file.
* tests/Makefile.am (EXTRA_DIST): Remove input-tty.
* tests/mv/i-3: Use the function, not the file.
* tests/misc/stty: Likewise.
* tests/misc/stty-row-col: Likewise.
* tests/misc/stty-invalid: Likewise.

7 files changed, 17 insertions, 17 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 8a5835624..bc656c427 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -11,7 +11,6 @@ EXTRA_DIST =		\
   README		\
   check.mk		\
   envvar-check		\
-  input-tty		\
   lang-default		\
   other-fs-tmpdir	\
   require-perl		\
diff --git a/tests/input-tty b/tests/input-tty
deleted file mode 100644
index 7df151523..000000000
--- a/tests/input-tty
+++ /dev/null
@@ -1,10 +0,0 @@
-# Require a controlling input `terminal'.
-
-tty -s || have_input_tty=no
-test -t 1 || have_input_tty=no
-if test "$have_input_tty" = no; then
-  echo "$0: This test must have a controlling input \`terminal'," 1>&2
-  echo "  so it may not be run via \`batch', \`at', or \`rsh'." 1>&2
-  echo "  On some systems, it may not even be run in the background." 1>&2
-  (exit 77); exit 77
-fi
diff --git a/tests/misc/stty b/tests/misc/stty
index 8b5fbff00..8216c8e81 100755
--- a/tests/misc/stty
+++ b/tests/misc/stty
@@ -22,8 +22,8 @@ if test "$VERBOSE" = yes; then
 fi
 
 # Make sure there's a tty on stdin.
-. $srcdir/input-tty
 . $srcdir/test-lib.sh
+require_controlling_input_terminal_
 
 # The following list of reversible options was generated with
 # grep -w REV stty.c|sed -n '/^  {"/{s//REV_/;s/".*/=1/;p;}'|fmt
diff --git a/tests/misc/stty-invalid b/tests/misc/stty-invalid
index 168bb59af..302dbe0ec 100755
--- a/tests/misc/stty-invalid
+++ b/tests/misc/stty-invalid
@@ -21,9 +21,8 @@ if test "$VERBOSE" = yes; then
   stty --version
 fi
 
-# Make sure there's a tty on stdin.
-. $srcdir/input-tty
 . $srcdir/test-lib.sh
+require_controlling_input_terminal_
 
 fail=0
 
diff --git a/tests/misc/stty-row-col b/tests/misc/stty-row-col
index 7fc917fa4..8ac114336 100755
--- a/tests/misc/stty-row-col
+++ b/tests/misc/stty-row-col
@@ -36,9 +36,8 @@ export COLUMNS
 LC_ALL=C
 export LC_ALL
 
-# Make sure there's a tty on stdin.
-. $srcdir/input-tty
 . $srcdir/test-lib.sh
+require_controlling_input_terminal_
 
 # Versions of GNU stty from shellutils-1.9.2c and earlier failed
 # tests #2 and #4 when run on SunOS 4.1.3.
diff --git a/tests/mv/i-3 b/tests/mv/i-3
index eed3c8b66..9d8b03ecd 100755
--- a/tests/mv/i-3
+++ b/tests/mv/i-3
@@ -22,8 +22,8 @@ if test "$VERBOSE" = yes; then
   mv --version
 fi
 
-. $srcdir/input-tty
 . $srcdir/test-lib.sh
+require_controlling_input_terminal_
 skip_if_root_
 
 touch f g h i || framework_failure
diff --git a/tests/test-lib.sh b/tests/test-lib.sh
index f38693334..f0e107061 100644
--- a/tests/test-lib.sh
+++ b/tests/test-lib.sh
@@ -57,6 +57,19 @@ require_strace_()
     skip_test_ 'strace -qe "'"$1"'" does not work'
 }
 
+# Require a controlling input `terminal'.
+require_controlling_input_terminal_()
+{
+  tty -s || have_input_tty=no
+  test -t 1 || have_input_tty=no
+  if test "$have_input_tty" = no; then
+    echo "$0: This test must have a controlling input \`terminal'," 1>&2
+    echo "  so it may not be run via \`batch', \`at', or \`rsh'." 1>&2
+    echo "  On some systems, it may not even be run in the background." 1>&2
+    (exit 77); exit 77
+  fi
+}
+
 require_built_()
 {
   skip_=no