test/decode: Add tests for PatternGroups

This adds one test that supposed to succeed to test deep nesting
of pattern groups which is rarely exercised by targets using decode
tree. The remaining tests exercise various fail conditions.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20190227120217.20794-1-kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/decode/check.sh

@@ -15,4 +15,10 @@ for i in err_*.decode; do
     fi
 done
 
+for i in succ_*.decode; do
+    if ! $PYTHON $DECODETREE $i > /dev/null 2> /dev/null; then
+        echo FAIL:$i 1>&2
+    fi
+done
+
 exit $E

tests/decode/err_pattern_group_empty.decode

@@ -0,0 +1,6 @@
+# This work is licensed under the terms of the GNU LGPL, version 2 or later.
+# See the COPYING.LIB file in the top-level directory.
+
+# empty groups are not allowed
+{
+}

tests/decode/err_pattern_group_ident1.decode

@@ -0,0 +1,10 @@
+# This work is licensed under the terms of the GNU LGPL, version 2 or later.
+# See the COPYING.LIB file in the top-level directory.
+
+%sub1 0:8
+
+# Make sure that indentation is enforced
+{
+    top      00000000 00000000 00000000 00000000
+    sub1     00000000 00000000 00000000 ........ %sub1
+}

tests/decode/err_pattern_group_ident2.decode

@@ -0,0 +1,11 @@
+# This work is licensed under the terms of the GNU LGPL, version 2 or later.
+# See the COPYING.LIB file in the top-level directory.
+
+%sub1 0:8
+
+# Make sure that indentation is enforced
+{
+  top      00000000 00000000 00000000 00000000
+  sub1     00000000 00000000 00000000 ........ %sub1
+# comments are suposed to be indented
+}

tests/decode/err_pattern_group_nest1.decode

@@ -0,0 +1,13 @@
+# This work is licensed under the terms of the GNU LGPL, version 2 or later.
+# See the COPYING.LIB file in the top-level directory.
+
+%sub1 0:8
+%sub2 8:8
+%sub3 16:8
+%sub4 24:8
+
+# Groups with no overlap are supposed to fail
+{
+  top  00000000 00000000 00000000 00000000
+  sub4 ........ ........ ........ ........ %sub1 %sub2 %sub3 %sub4
+}

tests/decode/succ_pattern_group_nest1.decode

@@ -0,0 +1,22 @@
+# This work is licensed under the terms of the GNU LGPL, version 2 or later.
+# See the COPYING.LIB file in the top-level directory.
+
+%sub1 0:8
+%sub2 8:8
+%sub3 16:8
+%sub4 24:7
+
+# Make sure deep netsting works, as few targets will actually exercise it
+{
+  top        00000000 00000000 00000000 00000000
+  {
+    sub1     00000000 00000000 00000000 ........ %sub1
+    {
+      sub2   00000000 00000000 ........ ........ %sub1 %sub2
+      {
+        sub3 00000000 ........ ........ ........ %sub1 %sub2 %sub3
+        sub4 0....... ........ ........ ........ %sub1 %sub2 %sub3 %sub4
+      }
+    }
+  }
+}