Scan numeric literals

test/spec/ol/expression/lexer.test.js

@@ -9,6 +9,50 @@ describe('ol.expression.Lexer', function() {
     });
   });
 
+  describe('#scanNumericLiteral_()', function() {
+
+    function scan(code) {
+      var lexer = new ol.expression.Lexer(code);
+      return lexer.scanNumericLiteral_();
+    }
+
+    it('works for integers', function() {
+      var token = scan('123');
+      expect(token.value).to.be(123);
+    });
+
+    it('works for float', function() {
+      var token = scan('123.456');
+      expect(token.value).to.be(123.456);
+    });
+
+    it('works with exponent', function() {
+      var token = scan('1.234e5');
+      expect(token.value).to.be(1.234e5);
+    });
+
+    it('works with explicit positive exponent', function() {
+      var token = scan('1.234e+5');
+      expect(token.value).to.be(1.234e5);
+    });
+
+    it('works with negative exponent', function() {
+      var token = scan('1.234e-5');
+      expect(token.value).to.be(1.234e-5);
+    });
+
+    it('works with octals', function() {
+      var token = scan('02322');
+      expect(token.value).to.be(1234);
+    });
+
+    it('works with hex', function() {
+      var token = scan('0x4d2');
+      expect(token.value).to.be(1234);
+    });
+
+  });
+
 });
 
 goog.require('ol.expression.Lexer');