Intial Commit

nodered/rootfs/data/node_modules/mathjs/test/index.test.js

@@ -0,0 +1,83 @@
+var assert = require('assert'),
+    approx = require('../tools/approx'),
+    math = require('../index');
+
+describe('factory', function() {
+
+  it('should get a default instance of mathjs', function() {
+    assert.strictEqual(typeof math, 'object');
+    assert.deepEqual(math.config(), {
+      matrix: 'Matrix',
+      number: 'number',
+      precision: 64,
+      predictable: false,
+      epsilon: 1e-12
+    });
+  });
+
+  it('should create an instance of math.js with custom configuration', function() {
+    var math1 = math.create({
+      matrix: 'Array',
+      number: 'BigNumber'
+    });
+
+    assert.strictEqual(typeof math1, 'object');
+    assert.deepEqual(math1.config(), {
+      matrix: 'Array',
+      number: 'BigNumber',
+      precision: 64,
+      predictable: false,
+      epsilon: 1e-12
+    });
+  });
+
+  it('two instances of math.js should be isolated from each other', function() {
+    var math1 = math.create();
+    var math2 = math.create({
+      matrix: 'Array'
+    });
+
+    assert.notStrictEqual(math, math1);
+    assert.notStrictEqual(math, math2);
+    assert.notStrictEqual(math1, math2);
+    assert.notDeepEqual(math1.config(), math2.config());
+    assert.notDeepEqual(math.config(), math2.config());
+
+    // changing config should not affect the other
+    math1.config({number: 'BigNumber'});
+    assert.strictEqual(math.config().number, 'number');
+    assert.strictEqual(math1.config().number, 'BigNumber');
+    assert.strictEqual(math2.config().number, 'number');
+  });
+
+  it('should apply configuration using the config function', function() {
+    var math1 = math.create();
+
+    var config = math1.config();
+    assert.deepEqual(config, {
+      matrix: 'Matrix',
+      number: 'number',
+      precision: 64,
+      predictable: false,
+      epsilon: 1e-12
+    });
+
+    // restore the original config
+    math1.config(config);
+  });
+
+  // TODO: test whether the namespace is correct: has functions like sin, constants like pi, objects like type and error.
+
+  it('should throw an error when ES5 is not supported', function() {
+    var create = Object.create;
+    Object.create = undefined; // fake missing Object.create function
+
+    assert.throws(function () {
+      var math1 = math.create();
+    }, /ES5 not supported/);
+
+    // restore Object.create
+    Object.create = create;
+  });
+
+});