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Viewing changes to jstests/group3.js

  • Committer: Bazaar Package Importer
  • Author(s): Antonin Kral
  • Date: 2010-01-29 19:48:45 UTC
  • Revision ID: james.westby@ubuntu.com-20100129194845-8wbmkf626fwcavc9
Tags: upstream-1.3.1
Import upstream version 1.3.1

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Lines of Context:
jstests/group3.js
 
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t = db.group2;
 
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t.drop();
 
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t.save({a: 1});
 
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t.save({a: 2});
 
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t.save({a: 3});
 
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t.save({a: 4});
 
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cmd = { initial: {count: 0, sum: 0},
 
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        reduce: function(obj, prev) {
 
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            prev.count++;
 
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            prev.sum += obj.a;
 
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        },
 
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        finalize: function(obj) {
 
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            if (obj.count){
 
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                obj.avg = obj.sum / obj.count;
 
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            }else{
 
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                obj.avg = 0;
 
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            }
 
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        },
 
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      };
 
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result1 = t.group(cmd);
 
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assert.eq(1, result1.length, "test1");
 
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assert.eq(10, result1[0].sum, "test1");
 
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assert.eq(4, result1[0].count, "test1");
 
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assert.eq(2.5, result1[0].avg, "test1");
 
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cmd['finalize'] = function(obj) {
 
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    if (obj.count){
 
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        return obj.sum / obj.count;
 
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    }else{
 
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        return 0;
 
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    }
 
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};
 
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result2 = t.group(cmd);
 
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assert.eq(1, result2.length, "test2");
 
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assert.eq(2.5, result2[0], "test2");