Add tests for ranges

test/range.js

@@ -0,0 +1,86 @@
+/*
+ Copyright (C) 2019 Guy Lewin <guy@lewin.co.il>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+'use strict';
+
+var fs = require('fs'),
+    esprima = require('esprima'),
+    escodegen = require('./loader'),
+    chai = require('chai'),
+    expect = chai.expect;
+
+function test(tree) {
+    var tree, actual;
+    var code = "{\n    }";
+    var options = {
+        preserveBlankLines: true,
+        sourceCode: code,
+        format: {
+            preserveBlankLines: true
+        }
+    };
+
+    actual = escodegen.generate(tree, options);
+    expect(actual).to.be.equal(code);
+}
+
+describe('test building trees with and without range', function () {
+    it("with range - Esprima built", function () {
+        // Parsed by Esprima
+        test({
+            "type": "Program",
+            "body": [{
+                "type": "BlockStatement",
+                "body": [],
+                "range": [
+                    0,
+                    7
+                ]
+            }],
+            "sourceType": "module",
+            "range": [
+                0,
+                7
+            ]
+        });
+    });
+
+    it("without range - Acorn built", function () {
+        // Parsed by Acorn
+        test({
+            "type": "Program",
+            "start": 0,
+            "end": 7,
+            "body": [{
+                "type": "BlockStatement",
+                "start": 0,
+                "end": 7,
+                "body": []
+            }],
+            "sourceType": "module"
+        });
+    });
+});
+
+/* vim: set sw=4 ts=4 et tw=80 : */