Changeset 15849 for branches/2886_SymRegGrammarEnumeration/Test/TreeHashingTest.cs

Timestamp:

03/20/18 13:49:19 (6 years ago)

Author:

lkammere

Message:

#2886: Add constants to grammar.

File:

• branches/2886_SymRegGrammarEnumeration/Test/TreeHashingTest.cs (modified) (3 diffs)

branches/2886_SymRegGrammarEnumeration/Test/TreeHashingTest.cs

@@ -12 +12 @@
     private TerminalSymbol varB;
     private TerminalSymbol varC;
+    private TerminalSymbol c;
 
     [TestInitialize]
@@ -20 +21 @@
       varB = grammar.VarTerminals.First(s => s.StringRepresentation == "b");
       varC = grammar.VarTerminals.First(s => s.StringRepresentation == "c");
+      c = grammar.Const;
     }
 
@@ -132 +134 @@
     }
 
+    // Constants
+    [TestMethod]
+    [TestCategory("TreeHashing")]
+    public void SimpleConst() {
+      SymbolString s1 = new SymbolString(new Symbol[] { c, varA, grammar.Multiplication, c, grammar.Addition});
+      SymbolString s2 = new SymbolString(new Symbol[] { c, varA, grammar.Multiplication, c, varA, grammar.Multiplication, grammar.Addition, c, grammar.Addition });
+
+      int hash1 = grammar.Hasher.CalcHashCode(s1);
+      int hash2 = grammar.Hasher.CalcHashCode(s2);
+
+      Assert.AreEqual(hash1, hash2);
+    }
+
     /* DEPRECATED; SINCE WE DO NOT ALLOW COMPOUND DIVISIONS
     [TestMethod]