mongodb/jstests/decimal/decimal_find_basic.js

// Tests finding NumberDecimal from the shell.

(function() {
    "use strict";
    var col = db.decimal_find_basic;
    col.drop();

    // Insert some sample data.

    assert.writeOK(col.insert([
        {"decimal": NumberDecimal("0")},
        {"decimal": NumberDecimal("0.00")},
        {"decimal": NumberDecimal("-0")},
        {"decimal": NumberDecimal("1.0")},
        {"decimal": NumberDecimal("1.00")},
        {"decimal": NumberDecimal("2.00")},
        {"decimal": NumberDecimal("12345678901234567890.12345678901234")},
        {"decimal": NumberDecimal("NaN")},
        {"decimal": NumberDecimal("-NaN")},
        {"decimal": NumberDecimal("-Infinity")},
        {"decimal": NumberDecimal("Infinity")},
    ]),
                   "Initial insertion of decimals failed");

    // Zeros
    assert.eq(col.find({"decimal": NumberDecimal("0")}).count(), "3");

    // NaNs
    assert.eq(col.find({"decimal": NumberDecimal("NaN")}).count(), 2, "NaN find failed");

    var theNaNs = [{"decimal": NumberDecimal("NaN")}, {"decimal": NumberDecimal("-NaN")}];

    assert(bsonWoCompare(theNaNs[0], theNaNs[1]) == 0, "NaN compares equal");

    // Infinity
    assert.eq(col.find({"decimal": NumberDecimal("Infinity")}).count(), 1, "Infinity count wrong");
    assert.eq(col.find({"decimal": NumberDecimal("-Infinity")}).count(), 1, "Infinity count wrong");

    // Maximum Precision
    assert.eq(col.find({"decimal": NumberDecimal("12345678901234567890.12345678901234")}).count(),
              1,
              "Maximum precision decimal not found.");

    col.drop();

    // Maximum and Minimum Values
    assert.writeOK(col.insert([
        {"max": NumberDecimal("9999999999999999999999999999999999E6111")},
        {"min": NumberDecimal("1E-6176")}
    ]));

    assert.eq(col.find({"max": NumberDecimal("9999999999999999999999999999999999E6111")}).count(),
              1);
    assert.eq(col.find({"min": NumberDecimal("1E-6176")}).count(), 1);
}());