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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
vim:set ts=2 sw=2 sts=2 et:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// This file tests the functions of mozIStorageStatementWrapper
function setup() {
getOpenedDatabase().createTable(
"test",
"id INTEGER PRIMARY KEY, val NONE,alt_val NONE"
);
}
/**
* A convenience wrapper for do_check_eq. Calls do_check_eq on aActualVal
* and aReturnedVal, with one caveat.
*
* Date objects are converted before parameter binding to PRTime's (microsecs
* since epoch). They are not reconverted when retrieved from the database.
* This function abstracts away this reconversion so that you can pass in,
* for example:
*
* checkVal(new Date(), aReturnedVal) // this
* checkVal(new Date().valueOf() * 1000.0, aReturnedVal) // instead of this
*
* Should any other types require conversion in the future, their conversions
* may also be abstracted away here.
*
* @param aActualVal
* the value inserted into the database
* @param aReturnedVal
* the value retrieved from the database
*/
function checkVal(aActualVal, aReturnedVal) {
if (aActualVal instanceof Date) {
aActualVal = aActualVal.valueOf() * 1000.0;
}
Assert.equal(aActualVal, aReturnedVal);
}
/**
* Removes all rows from our test table.
*/
function clearTable() {
var stmt = createStatement("DELETE FROM test");
stmt.execute();
stmt.finalize();
ensureNumRows(0);
}
/**
* Ensures that the number of rows in our test table is equal to aNumRows.
* Calls do_check_eq on aNumRows and the value retrieved by SELECT'ing COUNT(*).
*
* @param aNumRows
* the number of rows our test table should contain
*/
function ensureNumRows(aNumRows) {
var stmt = createStatement("SELECT COUNT(*) AS number FROM test");
Assert.ok(stmt.step());
Assert.equal(aNumRows, stmt.row.number);
stmt.reset();
stmt.finalize();
}
/**
* Inserts aVal into our test table and checks that insertion was successful by
* retrieving the newly inserted value from the database and comparing it
* against aVal. aVal is bound to a single parameter.
*
* @param aVal
* value to insert into our test table and check
*/
function insertAndCheckSingleParam(aVal) {
clearTable();
var stmt = createStatement("INSERT INTO test (val) VALUES (:val)");
stmt.params.val = aVal;
stmt.execute();
stmt.finalize();
ensureNumRows(1);
stmt = createStatement("SELECT val FROM test WHERE id = 1");
Assert.ok(stmt.step());
checkVal(aVal, stmt.row.val);
stmt.reset();
stmt.finalize();
}
/**
* Inserts aVal into our test table and checks that insertion was successful by
* retrieving the newly inserted value from the database and comparing it
* against aVal. aVal is bound to two separate parameters, both of which are
* checked against aVal.
*
* @param aVal
* value to insert into our test table and check
*/
function insertAndCheckMultipleParams(aVal) {
clearTable();
var stmt = createStatement(
"INSERT INTO test (val, alt_val) VALUES (:val, :val)"
);
stmt.params.val = aVal;
stmt.execute();
stmt.finalize();
ensureNumRows(1);
stmt = createStatement("SELECT val, alt_val FROM test WHERE id = 1");
Assert.ok(stmt.step());
checkVal(aVal, stmt.row.val);
checkVal(aVal, stmt.row.alt_val);
stmt.reset();
stmt.finalize();
}
/**
* A convenience function that prints out a description of aVal using
* aVal.toString and aVal.toSource. Output is useful when the test fails.
*
* @param aVal
* a value inserted or to be inserted into our test table
*/
function printValDesc(aVal) {
try {
var toSource = aVal.toSource();
} catch (ex) {
toSource = "";
}
print(
"Testing value: toString=" +
aVal +
(toSource ? " toSource=" + toSource : "")
);
}
function run_test() {
setup();
// function JSValStorageStatementBinder in
// storage/mozStorageStatementParams.cpp tells us that the following types
// and only the following types are valid as statement parameters:
var vals = [
1337, // int
3.1337, // double
"foo", // string
true, // boolean
null, // null
new Date(), // Date object
];
vals.forEach(function (val) {
printValDesc(val);
print("Single parameter");
insertAndCheckSingleParam(val);
print("Multiple parameters");
insertAndCheckMultipleParams(val);
});
cleanup();
}
|
