node-postgres/test/integration/client/prepared-statement-tests.js

155 lines
3.6 KiB
JavaScript

var helper = require(__dirname +'/test-helper');
test("simple, unnamed prepared statement", function(){
var client = helper.client();
var query = client.query({
text: 'select age from person where name = $1',
values: ['Brian']
});
assert.raises(query, 'row', function(row) {
assert.equal(row.fields[0], 20);
});
assert.raises(query, 'end', function() {
client.end();
});
});
test("named prepared statement", function() {
var client = helper.client();
client.on('drain', client.end.bind(client));
var queryName = "user by age and like name";
var parseCount = 0;
test("first named prepared statement",function() {
var query = client.query({
text: 'select name from person where age <= $1 and name LIKE $2',
values: [20, 'Bri%'],
name: queryName
});
test("is parsed", function() {
client.connection.on('parseComplete', function() {
parseCount++;
});
});
assert.raises(query, 'row', function(row) {
assert.equal(row.fields[0], 'Brian');
});
assert.raises(query, 'end', function() {
test("query was parsed", function() {
assert.equal(parseCount, 1);
});
});
});
test("second named prepared statement with same name & text", function() {
var cachedQuery = client.query({
text: 'select name from person where age <= $1 and name LIKE $2',
name: queryName,
values: [10, 'A%']
});
assert.raises(cachedQuery, 'row', function(row) {
assert.equal(row.fields[0], 'Aaron');
});
assert.raises(cachedQuery, 'end', function() {
test("query was only parsed one time", function() {
assert.equal(parseCount, 1, "Should not have reparsed query");
});
});
});
test("with same name, but the query text not even there batman!", function() {
var q = client.query({
name: queryName,
values: [30, '%n%']
});
test("gets first row", function() {
assert.raises(q, 'row', function(row) {
assert.equal(row.fields[0], "Aaron");
test("gets second row", function() {
assert.raises(q, 'row', function(row) {
assert.equal(row.fields[0], "Brian");
});
});
});
});
assert.raises(q, 'end', function() {
assert.equal(parseCount, 1);
});
});
});
test("prepared statements on different clients", function() {
var statementName = "differ";
var statement1 = "select count(*) from person";
var statement2 = "select count(*) from person where age < $1";
var client1Finished = false;
var client2Finished = false;
var client1 = helper.client();
var client2 = helper.client();
test("client 1 execution", function() {
var query = client1.query({
name: statementName,
text: statement1
});
test('gets right data back', function() {
assert.raises(query, 'row', function(row) {
assert.equal(row.fields[0], 26);
});
});
assert.raises(query, 'end', function() {
if(client2Finished) {
client1.end();
client2.end();
} else {
client1Finished = true;
}
});
});
test('client 2 execution', function() {
var query = client2.query({
name: statementName,
text: statement2,
values: [11]
});
test('gets right data', function() {
assert.raises(query, 'row', function(row) {
assert.equal(row.fields[0], 1);
});
});
assert.raises(query, 'end', function() {
if(client1Finished) {
client1.end();
client2.end();
} else {
client2Finished = true;
}
});
});
});