40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
// Test correctness of the "keys" and and "count" fields in the group command output.
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var coll = db.group8;
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var result;
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coll.drop();
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assert.writeOK(coll.insert({a: 1, b: "x"}));
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assert.writeOK(coll.insert({a: 2, b: "x"}));
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assert.writeOK(coll.insert({a: 2, b: "x"}));
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assert.writeOK(coll.insert({a: 3, b: "y"}));
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// Test case when "count" and "keys" are both zero.
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result = coll.runCommand({
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group: {
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ns: coll.getName(),
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key: {a: 1},
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cond: {b: "z"},
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$reduce: function(x, y) {},
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initial: {}
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}
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});
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assert.commandWorked(result);
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assert.eq(result.count, 0);
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assert.eq(result.keys, 0);
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assert.eq(result.retval.length, 0);
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// Test case when "count" and "keys" are both non-zero.
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result = coll.runCommand({
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group: {
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ns: coll.getName(),
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key: {a: 1},
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cond: {b: "x"},
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$reduce: function(x, y) {},
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initial: {}
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}
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});
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assert.commandWorked(result);
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assert.eq(result.count, 3);
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assert.eq(result.keys, 2);
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assert.eq(result.retval.length, 2);
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