From 9f4197c659207534401ee6a7299275bf4d109949 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Fri, 14 Jul 2017 18:12:08 -0400
Subject: Parse the d operation

---
 __tests__/parser.test.js | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 __tests__/parser.test.js

(limited to '__tests__')

diff --git a/__tests__/parser.test.js b/__tests__/parser.test.js
new file mode 100644
index 0000000..004e18b
--- /dev/null
+++ b/__tests__/parser.test.js
@@ -0,0 +1,35 @@
+const { parse } = require('../src/parser.js')
+
+describe('parse', () => {
+  it('parses a constant', () => {
+    expect(parse('5')).toEqual({ type: 'constant', value: 5 })
+  })
+
+  it('parses a simple die (1d6)', () => {
+    expect(parse('1d6')).toEqual({
+      type: 'd',
+      left: { type: 'constant', value: 1 },
+      right: { type: 'constant', value: 6 }
+    })
+  })
+
+  it('parses a simple die (10d42)', () => {
+    expect(parse('10d42')).toEqual({
+      type: 'd',
+      left: { type: 'constant', value: 10 },
+      right: { type: 'constant', value: 42 }
+    })
+  })
+
+  it('parses a compound die (1d2d3)', () => {
+    expect(parse('1d2d3')).toEqual({
+      type: 'd',
+      left: { type: 'constant', value: 1 },
+      right: {
+        type: 'd',
+        left: { type: 'constant', value: 2 },
+        right: { type: 'constant', value: 3 }
+      }
+    })
+  })
+})
-- 
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