tests: remove some code duplication

* t/ax/am-test-lib (null_install): New function.
* t/instdir-java.sh: Use it instead of copied & pasted code.
* t/instdir-lisp.sh: Likewise.
* t/instdir-ltlib.sh: Likewise.
* t/instdir-prog.sh: Likewise.
* t/instdir-python.sh: Likewise.
* t/instdir-texi.sh: Likewise.
* t/instdir.sh: Likewise.
* t/instdir2.sh: Likewise.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

9 files changed, 48 insertions, 92 deletions

diff --git a/t/ax/am-test-lib.sh b/t/ax/am-test-lib.sh
index 74311f3c3..8072ce0d1 100644
--- a/t/ax/am-test-lib.sh
+++ b/t/ax/am-test-lib.sh
@@ -373,6 +373,7 @@ grep_configure_help ()
   $EGREP "$2" am--our-help || exit 1
 }
 
+
 # using_gmake
 # -----------
 # Return success if $MAKE is GNU make, return failure otherwise.
@@ -483,6 +484,37 @@ am__useless_vpath_rebuild=""
 
 yl_distcheck () { useless_vpath_rebuild || run_make distcheck ${1+"$@"}; }
 
+
+null_install ()
+{
+  for am__v in nulldirs destdir instdir; do
+    if ! eval 'test -n "$'$am__v'"'; then
+      fatal_ "null_install() invoked with \$$am__v unset"
+    fi
+  done
+  unset am__v
+  case $#,$1 in
+    0,)
+      am__inst='install';;
+    1,-t|1,--texi)
+      am__inst='install install-html install-dvi install-ps install-pdf';;
+    *)
+      fatal_ "null_install(): invalid usage";;
+  esac
+  run_make $nulldirs $am__inst
+  test ! -e "$instdir"
+  run_make $nulldirs $am__inst DESTDIR="$destdir"
+  test ! -e "$instdir"
+  test ! -e "$destdir"
+  run_make -M $nulldirs uninstall
+  # Creative quoting below to please maintainer-check.
+  grep 'rm'' ' output && exit 1
+  run_make -M $nulldirs uninstall DESTDIR="$destdir"
+  # Creative quoting below to please maintainer-check.
+  grep 'rm'' ' output && exit 1
+  : # For 'set -e'.
+}
+
 # count_test_results total=N pass=N fail=N xpass=N xfail=N skip=N error=N
 # -----------------------------------------------------------------------
 # Check that a testsuite run driven by the parallel-tests harness has
diff --git a/t/instdir-java.sh b/t/instdir-java.sh
index 547ec5f7c..1356f2437 100644
--- a/t/instdir-java.sh
+++ b/t/instdir-java.sh
@@ -45,16 +45,7 @@ cd build
 ../configure --prefix="$instdir"
 $MAKE
 
-nukedirs='javadir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='javadir='
+null_install
 
 :
diff --git a/t/instdir-lisp.sh b/t/instdir-lisp.sh
index 97605571c..b37e6fe8c 100644
--- a/t/instdir-lisp.sh
+++ b/t/instdir-lisp.sh
@@ -42,16 +42,7 @@ cd build
 ../configure --prefix="$instdir"
 $MAKE
 
-nukedirs='lispdir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='lispdir='
+null_install
 
 :
diff --git a/t/instdir-ltlib.sh b/t/instdir-ltlib.sh
index 0299d5a6a..526e29cdf 100644
--- a/t/instdir-ltlib.sh
+++ b/t/instdir-ltlib.sh
@@ -69,16 +69,7 @@ cd build
              am_cv_python_pyexecdir="$instdir/pyexec"
 $MAKE
 
-nukedirs='bindir= libdir= pyexecdir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='bindir= libdir= pyexecdir='
+null_install
 
 :
diff --git a/t/instdir-prog.sh b/t/instdir-prog.sh
index 2c57157a9..26e6c42fe 100644
--- a/t/instdir-prog.sh
+++ b/t/instdir-prog.sh
@@ -68,19 +68,7 @@ cd build
              am_cv_python_pyexecdir="$instdir/pyexec"
 $MAKE
 
-nukedirs='bindir= libdir= pyexecdir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout \
-  || { cat stdout; exit 1; }
-cat stdout
-# Creative quoting below to please maintainer-check.
-grep 'rm'' ' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir" > stdout \
-  || { cat stdout; exit 1; }
+nulldirs='bindir= libdir= pyexecdir='
+null_install
 
 :
diff --git a/t/instdir-python.sh b/t/instdir-python.sh
index e431a0635..2bd4014ed 100644
--- a/t/instdir-python.sh
+++ b/t/instdir-python.sh
@@ -46,16 +46,7 @@ cd build
 ../configure --prefix="$instdir"
 $MAKE
 
-nukedirs='pythondir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='pythondir='
+null_install
 
 :
diff --git a/t/instdir-texi.sh b/t/instdir-texi.sh
index 5cdaddbef..6f30419f7 100644
--- a/t/instdir-texi.sh
+++ b/t/instdir-texi.sh
@@ -56,17 +56,7 @@ cd build
 $MAKE all dvi ps pdf html
 ls -l
 
-nukedirs='infodir= htmldir= dvidir= psdir= pdfdir='
-
-run_make $nukedirs install install-html install-dvi install-ps install-pdf
-test ! -e "$instdir"
-run_make $nukedirs install install-html install-dvi install-ps install-pdf \
-                   DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='infodir= htmldir= dvidir= psdir= pdfdir='
+null_install --texi
 
 :
diff --git a/t/instdir.sh b/t/instdir.sh
index 6cc4c2c3e..872f3dca7 100644
--- a/t/instdir.sh
+++ b/t/instdir.sh
@@ -55,16 +55,7 @@ cd build
 ../configure --prefix="$instdir"
 $MAKE
 
-nukedirs='bindir= datadir= includedir= foodir= bardir= man1dir= man2dir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='bindir= datadir= includedir= foodir= bardir= man1dir= man2dir='
+null_install
 
 :
diff --git a/t/instdir2.sh b/t/instdir2.sh
index e85e9c190..184859193 100644
--- a/t/instdir2.sh
+++ b/t/instdir2.sh
@@ -77,16 +77,7 @@ cd build
 ../configure --prefix="$instdir"
 $MAKE
 
-nukedirs='bindir= datadir= includedir= foodir= bardir= man1dir= man2dir='
-
-run_make $nukedirs install
-test ! -e "$instdir"
-run_make $nukedirs install DESTDIR="$destdir"
-test ! -e "$instdir"
-test ! -e "$destdir"
-run_make $nukedirs uninstall > stdout || { cat stdout; exit 1; }
-cat stdout
-grep 'rm -f' stdout && exit 1
-run_make $nukedirs uninstall DESTDIR="$destdir"
+nulldirs='bindir= datadir= includedir= foodir= bardir= man1dir= man2dir='
+null_install
 
 :