add tests for fns/ultimateGear, fns/handleTwoHanded, fns/randomVal, fns/predictableRandom and partial tests for ops/buy

test/common/fns/randomVal.js

@@ -0,0 +1,119 @@
+import randomVal from '../../../common/script/fns/randomVal';
+import {
+  generateUser,
+} from '../../helpers/common.helper';
+
+describe('shared.fns.randomVal', () => {
+  let user;
+  let obj = {
+    a: 1,
+    b: 2,
+    c: 3,
+    d: 4,
+  };
+
+  beforeEach(() => {
+    user = generateUser();
+  });
+
+  describe('returns a random property value from an object', () => {
+    it('returns the same value when the seed is the same', () => {
+      let val1 = randomVal(user, obj, {
+        seed: 222,
+      });
+
+      let val2 = randomVal(user, obj, {
+        seed: 222,
+      });
+
+      expect(val2).to.equal(val1);
+    });
+
+    it('returns the same value when user.stats is the same', () => {
+      user.stats.gp = 34;
+      let val1 = randomVal(user, obj);
+      let val2 = randomVal(user, obj);
+
+      expect(val2).to.equal(val1);
+    });
+
+    it('returns a different value when the seed is different', () => {
+      let val1 = randomVal(user, obj, {
+        seed: 222,
+      });
+
+      let val2 = randomVal(user, obj, {
+        seed: 333,
+      });
+
+      expect(val2).to.not.equal(val1);
+    });
+
+    it('returns a different value when user.stats is different', () => {
+      user.stats.gp = 34;
+      let val1 = randomVal(user, obj);
+      user.stats.gp = 343;
+      let val2 = randomVal(user, obj);
+
+      expect(val2).to.not.equal(val1);
+    });
+  });
+
+  describe('returns a random key from an object', () => {
+    it('returns the same key when the seed is the same', () => {
+      let key1 = randomVal(user, obj, {
+        key: true,
+        seed: 222,
+      });
+
+      let key2 = randomVal(user, obj, {
+        key: true,
+        seed: 222,
+      });
+
+      expect(key2).to.equal(key1);
+    });
+
+    it('returns the same key when user.stats is the same', () => {
+      user.stats.gp = 45;
+      let key1 = randomVal(user, obj, {
+        key: true,
+      });
+
+      let key2 = randomVal(user, obj, {
+        key: true,
+      });
+
+      expect(key2).to.equal(key1);
+    });
+
+    it('returns a different key when the seed is different', () => {
+      let key1 = randomVal(user, obj, {
+        key: true,
+        seed: 222,
+      });
+
+      let key2 = randomVal(user, obj, {
+        key: true,
+        seed: 333,
+      });
+
+      expect(key2).to.not.equal(key1);
+    });
+
+    it('returns a different key when user.stats is different', () => {
+      user.stats.gp = 45;
+      let key1 = randomVal(user, obj, {
+        key: true,
+      });
+
+      user.stats.gp = 43;
+
+      let key2 = randomVal(user, obj, {
+        key: true,
+      });
+
+      expect(key2).to.not.equal(key1);
+    });
+  });
+});