From 5b77a409c912f7251da8c170bd4a3aa8826d989b Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Wed, 30 Aug 2017 16:30:23 -0400
Subject: Implement again under

---
 __tests__/dice.test.js   | 24 ++++++++++++++++++++++++
 __tests__/lexer.test.js  | 10 ++++++++++
 __tests__/parser.test.js | 10 ++++++++++
 3 files changed, 44 insertions(+)

(limited to '__tests__')

diff --git a/__tests__/dice.test.js b/__tests__/dice.test.js
index d4e2802..272f436 100644
--- a/__tests__/dice.test.js
+++ b/__tests__/dice.test.js
@@ -12,6 +12,7 @@ const {
   keepHigh,
   keepLow,
   again,
+  againUnder,
   threshold
 } = require('../src/dice.js')
 
@@ -579,6 +580,29 @@ describe('again', () => {
       }
     })
   })
+
+  describe('1a1d6', () => {
+    const die = againUnder(constant(1), d(constant(1), constant(6)))
+
+    testDie(die, {
+      variableDiceCount: {
+        min: 1,
+        max: Infinity
+      },
+      average: {
+        average: 4.2
+      },
+      variance: {
+        variance: 2.24
+      },
+      bounds: {
+        low: 2,
+        high: Infinity,
+        expectLow: true,
+        expectHigh: false
+      }
+    })
+  })
 })
 
 describe('threshold', () => {
diff --git a/__tests__/lexer.test.js b/__tests__/lexer.test.js
index 0336f44..25ef816 100644
--- a/__tests__/lexer.test.js
+++ b/__tests__/lexer.test.js
@@ -203,6 +203,16 @@ describe('lex', () => {
         { type: 'constant', value: 6 }
       ])
     })
+
+    test('6a3d6', () => {
+      expect(lex('6a3d6')).toEqual([
+        { type: 'constant', value: 6 },
+        { type: 'a' },
+        { type: 'constant', value: 3 },
+        { type: 'd' },
+        { type: 'constant', value: 6 }
+      ])
+    })
   })
 
   describe('threshold', () => {
diff --git a/__tests__/parser.test.js b/__tests__/parser.test.js
index 765388d..ad67fc4 100644
--- a/__tests__/parser.test.js
+++ b/__tests__/parser.test.js
@@ -219,6 +219,16 @@ describe('parse', () => {
         right: { type: 'constant', value: 10 }
       }
     })
+
+    expect(parse('10a3d10')).toEqual({
+      type: 'a',
+      left: { type: 'constant', value: 10 },
+      right: {
+        type: 'd',
+        left: { type: 'constant', value: 3 },
+        right: { type: 'constant', value: 10 }
+      }
+    })
   })
 
   it('parases dice with threshold', () => {
-- 
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