first commit

build/node_modules/base62/test/test.js

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+var assert = require('assert');
+var Base62 = require('../base62');
+
+describe("encode", function() {
+    it("should encode a number to a Base62 string", function() {
+        assert.equal(Base62.encode(0), '0');
+        assert.equal(Base62.encode(999), 'g7');
+        assert.equal(Base62.encode(65), '13');
+        //test big numbers
+        assert.equal(Base62.encode(10000000000001), "2Q3rKTOF");
+        assert.equal(Base62.encode(10000000000002), "2Q3rKTOG");
+
+    });
+});
+
+describe("decode", function() {
+    it("should decode a number from a Base62 string", function() {
+        assert.equal(Base62.decode('0'), 0);
+        assert.equal(Base62.decode('g7'), 999);
+        assert.equal(Base62.decode('13'), 65);
+        //zero padded strings
+        assert.equal(Base62.decode('0013'), 65);
+        //test big numbers
+        assert.equal(Base62.decode("2Q3rKTOF"), 10000000000001);
+        assert.equal(Base62.decode("2Q3rKTOH"), 10000000000003);
+    });
+});
+
+describe("setCharacterSequence", function(){
+    it("should update the character sequence", function(){
+        Base62.setCharacterSet("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+
+        //Test default character set is not intact
+        assert.notEqual(Base62.encode(999), 'g7');
+
+        //Test new character set test cases
+        var testCases = {
+            "G7": 999,
+            "Lxf7": 5234233,
+            "qx": 3283,
+            "29": 133,
+            "1S": 90,
+            "3k": 232,
+            "4I": 266,
+            "2X": 157,
+            "1E": 76,
+            "1L": 83
+        };
+
+        Object.keys(testCases).forEach(function(base62String){
+            assert.equal(Base62.encode(testCases[base62String]), base62String);
+            assert.equal(Base62.decode(base62String), testCases[base62String]);
+        });
+
+    });
+
+    it("should throw exceptions on invalid strings", function(){
+        var errorCheck = function(err) {
+            if ( (err instanceof Error) && /value/.test(err) ) {
+                return true;
+            }
+        };
+
+        assert.throws(function(){
+            Base62.setCharacterSet("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxy");
+        }, /You must supply 62 characters/);
+
+        assert.throws(function(){
+            Base62.setCharacterSet("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz;");
+        }, /You must supply 62 characters/);
+
+
+        assert.throws(function(){
+            Base62.setCharacterSet("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxzz");
+        }, /You must use unique characters/);
+
+    });
+});