1 files changed, 118 insertions, 0 deletions
diff --git a/test/racc/assets/echk.y b/test/racc/assets/echk.y
new file mode 100644
index 0000000000..0fda2685aa
--- /dev/null
+++ b/test/racc/assets/echk.y
@@ -0,0 +1,118 @@
+#
+# racc tester
+#
+
+class Calcp
+
+  prechigh
+    left '*' '/'
+    left '+' '-'
+  preclow
+
+  convert
+    NUMBER 'Number'
+  end
+
+rule
+
+  target : exp | /* none */ { result = 0 } ;
+
+  exp    : exp '+' exp { result += val[2]; a = 'plus' }
+         | exp '-' exp { result -= val[2]; "string test" }
+         | exp '*' exp { result *= val[2] }
+         | exp '/' exp { result /= val[2] }
+         | '(' { $emb = true } exp ')'
+             {
+               raise 'must not happen' unless $emb
+               result = val[2]
+             }
+         | '-' NUMBER  { result = -val[1] }
+         | NUMBER
+         ;
+
+end
+
+----header
+
+class Number ; end
+
+----inner
+
+  def parse( src )
+    @src = src
+    do_parse
+  end
+
+  def next_token
+    @src.shift
+  end
+
+  def initialize
+    @yydebug = true
+  end
+
+----footer
+
+$parser = Calcp.new
+$tidx = 1
+
+def chk( src, ans )
+  ret = $parser.parse( src )
+  unless ret == ans then
+    bug! "test #{$tidx} fail"
+  end
+  $tidx += 1
+end
+
+chk(
+  [ [Number, 9],
+    [false, false],
+    [false, false] ], 9
+)
+
+chk(
+  [ [Number, 5],
+    ['*', nil],
+    [Number, 1],
+    ['-', nil],
+    [Number, 1],
+    ['*', nil],
+    [Number, 8],
+    [false, false],
+    [false, false] ], -3
+)
+
+chk(
+  [ [Number, 5],
+    ['+', nil],
+    [Number, 2],
+    ['-', nil],
+    [Number, 5],
+    ['+', nil],
+    [Number, 2],
+    ['-', nil],
+    [Number, 5],
+    [false, false],
+    [false, false] ], -1
+)
+
+chk(
+  [ ['-', nil],
+    [Number, 4],
+    [false, false],
+    [false, false] ], -4
+)
+
+chk(
+  [ [Number, 7],
+    ['*', nil],
+    ['(', nil],
+    [Number, 4],
+    ['+', nil],
+    [Number, 3],
+    [')', nil],
+    ['-', nil],
+    [Number, 9],
+    [false, false],
+    [false, false] ], 40
+)