[FYI 7/8] java coverage: test rebuild rules for java

[Stefano Lattarini]

* tests/java-rebuild.test: New test.
* tests/Makefile.am (TESTS): Update.
---
 ChangeLog               |    6 ++
 tests/Makefile.am       |    1 +
 tests/Makefile.in       |    1 +
 tests/java-rebuild.test |  126 +++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 134 insertions(+), 0 deletions(-)
 create mode 100755 tests/java-rebuild.test

diff --git a/ChangeLog b/ChangeLog
index 26c177e..9c71828 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2011-04-26  Stefano Lattarini  <address@hidden>
 
+       java coverage: test rebuild rules for java
+       * tests/java-rebuild.test: New test.
+       * tests/Makefile.am (TESTS): Update.
+
+2011-04-26  Stefano Lattarini  <address@hidden>
+
        java coverage: try to build and run a java program
        * tests/java-compile-run-flat.test: New test, try to build and run
        a "UNIX-style" java program (complete with wrapper shell script
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ff56b33..0e55109 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -446,6 +446,7 @@ java-sources.test \
 java-no-duplicate.test \
 java-mix.test \
 java-uninstall.test \
+java-rebuild.test \
 ldadd.test \
 ldflags.test \
 lex.test \
diff --git a/tests/Makefile.in b/tests/Makefile.in
index ea6b485..a0e6c70 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -719,6 +719,7 @@ java-sources.test \
 java-no-duplicate.test \
 java-mix.test \
 java-uninstall.test \
+java-rebuild.test \
 ldadd.test \
 ldflags.test \
 lex.test \
diff --git a/tests/java-rebuild.test b/tests/java-rebuild.test
new file mode 100755
index 0000000..75be5f7
--- /dev/null
+++ b/tests/java-rebuild.test
@@ -0,0 +1,126 @@
+#! /bin/sh
+# Copyright (C) 2011 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Test rebuild rules for Java class files.
+
+required='javac'
+. ./defs || Exit 1
+
+set -e
+
+cat >> configure.in <<'END'
+AC_OUTPUT
+END
+
+cat > Makefile.am <<'END'
+AM_JAVACFLAGS = -verbose
+foodir = $(datadir)/java
+foo_JAVA = a.java
+dist_foo_JAVA = d.java
+nodist_foo_JAVA = n.java
+nobase_foo_JAVA = Nobase.java
+nobase_dist_foo_JAVA = NobaseDist.java
+nobase_nodist_foo_JAVA = NobaseNoDist.java
+END
+
+echo 'class _x {}' > a.java
+echo 'class x_ {}' > d.java
+echo 'class a {} class d {}' > n.java
+echo 'class Nobase_Foo {} class Nobase_Bar {}' > Nobase.java
+echo 'class NobaseDist {}' > NobaseDist.java
+echo 'class NobaseNoDist {}' > NobaseNoDist.java
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE
+
+all_classes='_x x_ a d Nobase_Foo Nobase_Bar NobaseDist NobaseNoDist'
+
+for vpath in : false; do
+
+  if $vpath; then
+    srcdir=..
+    mkdir build
+    cd build
+  else
+    srcdir=.
+  fi
+
+  $srcdir/configure
+  $MAKE
+  ls -l # For debugging.
+
+  # Sanity check.
+  test -f classfoo.stamp
+  for cls in $all_classes; do
+    test -f $cls.class
+  done
+
+  # When the stampfile is removed, all the *.class files should
+  # be considered out-of-date.
+  echo timestamp > older
+  $sleep
+  rm -f classfoo.stamp
+  $MAKE
+  for cls in $all_classes; do
+    is_newest $cls.class older
+  done
+
+  # When only a java file is modified, only the *.class files derived from
+  # it should be updated.
+  # The strings we loop on here have the following format:
+  # ``JAVA-FILES-TO-BE-TOUCHED -- CLASSES-THAT-SHOULD-BE-UPDATED''
+  for args in \
+    'a -- _x' \
+    'd -- x_' \
+    'n -- a d' \
+    'a d Nobase -- _x x_ Nobase_Foo Nobase_Bar' \
+    'n NobaseDist -- a d NobaseDist' \
+    'd NobaseNoDist -- x_ NobaseNoDist' \
+    "a d n Nobase NobaseDist NobaseNoDist -- $all_classes" \
+  ; do
+    set $args
+    touched_javas=
+    while test $# -gt 0; do
+      if test x"$1" = x"--"; then
+        shift
+        break
+      else
+        touched_javas="$touched_javas $1"
+        shift
+      fi
+    done
+    updated_classes=$*
+    echo timestamp > older
+    $sleep
+    for j in $touched_javas; do
+      touch $srcdir/$j.java
+    done
+    $MAKE
+    is_newest classfoo.stamp older
+    for cls in $all_classes; do
+      case " $updated_classes " in
+        *" $cls "*) is_newest $cls.class older;;
+        *) is_newest older $cls.class;;
+      esac
+    done
+  done # $args ...
+
+  cd $srcdir
+
+done # $vpath ...
+
+:
-- 
1.7.2.3