120 lines
4.1 KiB
JavaScript
120 lines
4.1 KiB
JavaScript
// In SERVER-8951, $indexOfCP was introduced. In this file, we test the correctness and error
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// cases of the expression.
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load("jstests/aggregation/extras/utils.js"); // For assertErrorCode and testExpression.
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(function() {
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"use strict";
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function testExpressionCodePoints(coll, expression, result, shouldTestEquivalence = true) {
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testExpression(coll, expression, result);
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var indexOfSpec = expression["$indexOfCP"];
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if (shouldTestEquivalence) {
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// If we are specifying a starting or ending index for the search, we should be able to
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// achieve equivalent behavior using $substrCP.
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var input = indexOfSpec[0];
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var token = indexOfSpec[1];
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var start = indexOfSpec.length > 2 ? indexOfSpec[2] : 0;
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var end = indexOfSpec.length > 3 ? indexOfSpec[3] : {$strLenCP: input};
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var substrExpr = {
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$indexOfCP: [{$substrCP: [input, start, {$subtract: [end, start]}]}, token]
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};
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// Since the new expression takes the index with respect to a shortened string, the
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// output index will differ from the index with respect to the full length string,
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// unless the output is -1.
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var substrResult = (result === -1) ? -1 : result - start;
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testExpression(coll, substrExpr, substrResult);
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}
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}
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var coll = db.indexofcp;
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coll.drop();
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// Insert a dummy document so something flows through the pipeline.
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assert.writeOK(coll.insert({}));
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testExpressionCodePoints(coll, {$indexOfCP: ["∫aƒ", "ƒ"]}, 2);
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testExpressionCodePoints(coll, {$indexOfCP: ["a∫c", "d"]}, -1);
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testExpressionCodePoints(coll, {$indexOfCP: ["∫b∫ba", "b", 2]}, 3);
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testExpressionCodePoints(coll, {$indexOfCP: ["ab∫de", "d", 0, 3]}, -1);
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testExpressionCodePoints(coll, {$indexOfCP: ["ab∫de", "d", 0, 4]}, 3);
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testExpressionCodePoints(coll, {$indexOfCP: ["øøc", "ø", 1]}, 1);
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testExpressionCodePoints(coll, {$indexOfCP: ["øƒc", "ƒ", 0, 10]}, 1);
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testExpressionCodePoints(coll, {$indexOfCP: ["abcbabc", "b", 2, 4]}, 3);
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// $strLenCP does not accept null as an input.
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testExpressionCodePoints(coll, {$indexOfCP: [null, "√"]}, null, false);
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testExpressionCodePoints(coll, {$indexOfCP: ["abc", "b", 3]}, -1);
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// We are intentionally testing specifying an end index before the start index, which is why we
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// cannot use $substrCP in checking for equivalence.
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testExpressionCodePoints(coll, {$indexOfCP: ["a√cb", "b", 3, 1]}, -1, false);
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testExpressionCodePoints(coll, {$indexOfCP: ["a∫b", "b", 3, 5]}, -1);
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testExpressionCodePoints(coll, {$indexOfCP: ["", "∫"]}, -1);
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testExpressionCodePoints(coll, {$indexOfCP: [" ", ""]}, 0);
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testExpressionCodePoints(coll, {$indexOfCP: ["", ""]}, 0);
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testExpressionCodePoints(coll, {$indexOfCP: ["abc", "", 1]}, 1);
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// Test with multi-byte tokens.
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testExpressionCodePoints(coll, {$indexOfCP: ["abcƒe", "ƒe"]}, 3);
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testExpressionCodePoints(coll, {$indexOfCP: ["∫aeøø", "øøø"]}, -1);
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// Test with embedded null bytes.
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testExpressionCodePoints(coll, {$indexOfCP: ["ab∫\0d", "d"]}, 4);
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testExpressionCodePoints(coll, {$indexOfCP: ["øbc\0", "\0"]}, 3);
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testExpressionCodePoints(coll, {$indexOfCP: ["πbƒ\0d\0", "d", 5, 6]}, -1);
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// Error cases.
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var pipeline = {
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$project: {
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output: {
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$indexOfCP: [3, "s"],
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}
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}
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};
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assertErrorCode(coll, pipeline, 40093);
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pipeline = {
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$project: {
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output: {
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$indexOfCP: ["s", 3],
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}
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}
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};
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assertErrorCode(coll, pipeline, 40094);
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pipeline = {$project: {output: {$indexOfCP: ["abc", "b", "bad"]}}};
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assertErrorCode(coll, pipeline, 40096);
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pipeline = {$project: {output: {$indexOfCP: ["abc", "b", 0, "bad"]}}};
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assertErrorCode(coll, pipeline, 40096);
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pipeline = {$project: {output: {$indexOfCP: ["abc", "b", -1]}}};
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assertErrorCode(coll, pipeline, 40097);
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pipeline = {$project: {output: {$indexOfCP: ["abc", "b", 1, -1]}}};
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assertErrorCode(coll, pipeline, 40097);
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}());
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