mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-15 08:20:16 +08:00
Add Java testsuite info.
This commit is contained in:
Bruce Momjian
parent
ca5134e694
commit
a926c7058b
322
src/interfaces/jdbc/TESTSUITE
Normal file
322
src/interfaces/jdbc/TESTSUITE
Normal file
@ -0,0 +1,322 @@
|
||||
PostgreSQL/JDBC Test Suite Howto
|
||||
================================
|
||||
1 Introduction
|
||||
2 Installation
|
||||
3 Configuration
|
||||
4 Running the test suite
|
||||
5 Extending the test suite with new tests
|
||||
6 Guidelines for developing new tests
|
||||
7 Example
|
||||
8 Running the JDBC 2 test suite from Sun against PostgreSQL
|
||||
9 Credits, feedback
|
||||
|
||||
|
||||
1 Introduction
|
||||
--------------
|
||||
The PostgreSQL source tree contains an automated test suite for
|
||||
the JDBC driver. This document explains how to install,
|
||||
configure and run this test suite. Furthermore, it offers
|
||||
guidelines and an example for developers to add new test cases.
|
||||
|
||||
Sun provides two standard JDBC test suites that you may also
|
||||
find useful.
|
||||
http://java.sun.com/products/jdbc/download2.html (JDBC 1)
|
||||
http://java.sun.com/products/jdbc/jdbctestsuite-1_2_1.html (JDBC
|
||||
2, including J2EE requirements)
|
||||
The JDBC 2 test suite is covered in section 8 below. The JDBC 1
|
||||
test suite is not currently covered in this document.
|
||||
|
||||
2 Installation
|
||||
--------------
|
||||
Of course, you need to have a Java 2 JDK or JRE installed. The
|
||||
standard JDK from Sun is OK. You can download it from
|
||||
http://java.sun.com/.
|
||||
|
||||
You need to install the Ant build utility. You can download it
|
||||
from http://jakarta.apache.org/ant/.
|
||||
|
||||
You also need to install the JUnit testing framework. You can
|
||||
download it from http://www.junit.org/. Add junit.jar to your
|
||||
CLASSPATH before you perform the following steps. Ant will
|
||||
dynamically detect that JUnit is present and then build the JDBC
|
||||
test suite.
|
||||
|
||||
You need to install and build the PostgreSQL source tree. You
|
||||
can download it from http://www.postgresql.org/devel-corner/.
|
||||
See README and INSTALL in the top of the tree for more
|
||||
information.
|
||||
|
||||
You should run ./configure with the command line option
|
||||
--with-java. You may also want to use --with-pgport to compile a
|
||||
non-standard default port number (e.g. 5433) into all
|
||||
components. This will cause the server to listen on this
|
||||
non-standard port and it will cause the JDBC driver to connect
|
||||
to this port by default. In this way your testing environment is
|
||||
easily separated from other PostgreSQL applications on the same
|
||||
system.
|
||||
|
||||
In this Howto we'll use $JDBC_SRC to refer to the directory
|
||||
src/interfaces/jdbc of the PostgreSQL source tree in your
|
||||
environment. The test suite is located in the subdirectory
|
||||
$JDBC_SRC/org/postgresql/test.
|
||||
|
||||
3 Configuration
|
||||
---------------
|
||||
The test suite requires a PostgreSQL database to run the tests
|
||||
against and a user to login as. For a full regression test of
|
||||
the entire PostgreSQL system, you should run the test against a
|
||||
server built from the same source tree as the driver you're
|
||||
testing. The tests will create and drop many objects in this
|
||||
database, so it should not contain production tables to avoid
|
||||
loss of data. We recommend you assign the following names:
|
||||
|
||||
database: test
|
||||
username: test
|
||||
password: password
|
||||
|
||||
These names correspond with the default names set for the test
|
||||
suite in $JDBC_SRC/build.xml. If you have chosen other names you
|
||||
need to edit this file and change the properties "database",
|
||||
"username" and "password" accordingly.
|
||||
|
||||
4 Running the test suite
|
||||
------------------------
|
||||
%cd $JDBC_SRC
|
||||
%make
|
||||
%make check
|
||||
|
||||
This will run the command line version of JUnit. If you'd like
|
||||
to see an animated coloured progress bar as the tests are
|
||||
executed, you may want to use one of the GUI versions of the
|
||||
test runner. See the JUnit documentation for more information.
|
||||
|
||||
If the test suite reports errors or failures that you cannot
|
||||
explain, please post the relevant parts of the output to the
|
||||
mailing list pgsql-jdbc@postgresql.org.
|
||||
|
||||
5 Extending the test suite with new tests
|
||||
-----------------------------------------
|
||||
If you're not familiar with JUnit, we recommend that you
|
||||
first read the introductory article "JUnit Test Infected:
|
||||
Programmers Love Writing Tests" on
|
||||
http://junit.sourceforge.net/doc/testinfected/testing.htm.
|
||||
Before continuing, you should ensure you understand the
|
||||
following concepts: test suite, test case, test, fixture,
|
||||
assertion, failure.
|
||||
|
||||
The test suite consists of test cases, which consist of tests.
|
||||
A test case is a collection of tests that test a particular
|
||||
feature. The test suite is a collection of test cases that
|
||||
together test the driver - and to an extent the PostgreSQL
|
||||
backend - as a whole.
|
||||
|
||||
If you decide to add a test to an existing test case, all you
|
||||
need to do is add a method with a name that begins with "test"
|
||||
and which takes no arguments. JUnit will dynamically find this
|
||||
method using reflection and run it when it runs the test case.
|
||||
In your test method you can use the fixture that is setup for it
|
||||
by the test case.
|
||||
|
||||
If you decide to add a new test case, you should do two things:
|
||||
1) Add a class that extends junit.framework.TestCase. It should
|
||||
contain setUp() and tearDown() methods that create and destroy
|
||||
the fixture respectively.
|
||||
2) Edit $JDBC_SRC/org/postgresql/test/JDBC2Tests.java and add a
|
||||
suite.addTestSuite() call for your class. This will make the
|
||||
test case part of the test suite.
|
||||
|
||||
6 Guidelines for developing new tests
|
||||
-------------------------------------
|
||||
Every test should create and drop its own tables. We suggest to
|
||||
consider database objects (e.g. tables) part of the fixture for
|
||||
the tests in the test case. The test should also succeed when a
|
||||
table by the same name already exists in the test database, e.g.
|
||||
by dropping the table before running the test (ignoring errors).
|
||||
The recommended pattern for creating and dropping tables can be
|
||||
found in the example in section 7 below.
|
||||
|
||||
Please note that JUnit provides several convenience methods to
|
||||
check for conditions. See the TestCase class in the Javadoc
|
||||
documentation of JUnit, which is installed on your system. For
|
||||
example, you can compare two integers using
|
||||
TestCase.assertEquals(int expected, int actual). This method
|
||||
will print both values in case of a failure.
|
||||
|
||||
To simply report a failure use TestCase.fail().
|
||||
|
||||
The JUnit FAQ explains how to test for a thrown exception.
|
||||
|
||||
Avoid the use of the deprecated TestCase.assert(), since it will
|
||||
collide with the new assert keyword in the Java 2 platform
|
||||
version 1.4.
|
||||
|
||||
As a rule, the test suite should succeed. Any errors or failures
|
||||
- which may be caused by bugs in the JDBC driver, the backend or
|
||||
the test suite - should be fixed ASAP. Don't let a test fail
|
||||
just to make it clear that something needs to be fixed somewhere.
|
||||
That's what the TODO lists are for.
|
||||
|
||||
Add some comments to your tests to explain to others what it is
|
||||
you're testing. A long sequence of JDBC method calls and JUnit
|
||||
assertions can be hard to comprehend.
|
||||
|
||||
For example, in the comments you can explain where a certain test
|
||||
condition originates from. Is it a JDBC requirement, PostgreSQL
|
||||
behaviour or the intended implementation of a feature?
|
||||
|
||||
7 Example (incomplete)
|
||||
----------------------
|
||||
package org.postgresql.test.jdbc2;
|
||||
|
||||
import org.postgresql.test.JDBC2Tests;
|
||||
import junit.framework.TestCase;
|
||||
import java.sql.*;
|
||||
|
||||
/**
|
||||
* Test case for ...
|
||||
*/
|
||||
public class FooTest extends TestCase {
|
||||
|
||||
private Connection con;
|
||||
private Statement stmt;
|
||||
|
||||
public FooTest(String name) {
|
||||
super(name);
|
||||
}
|
||||
|
||||
protected void setUp() throws Exception {
|
||||
con = JDBC2Tests.openDB();
|
||||
stmt = con.createStatement();
|
||||
|
||||
// Drop the test table if it already exists for some
|
||||
// reason. It is not an error if it doesn't exist.
|
||||
try {
|
||||
stmt.executeUpdate("DROP TABLE testfoo");
|
||||
} catch (SQLException e) {
|
||||
// Intentionally ignore. We cannot distinguish
|
||||
// "table does not exist" from other errors, since
|
||||
// PostgreSQL doesn't support error codes yet.
|
||||
}
|
||||
|
||||
stmt.executeUpdate(
|
||||
"CREATE TABLE testfoo(pk INTEGER, col1 INTEGER)");
|
||||
stmt.executeUpdate("INSERT INTO testfoo VALUES(1, 0)");
|
||||
|
||||
// You may want to call con.setAutoCommit(false) at
|
||||
// this point, if most tests in this test case require
|
||||
// the use of transactions.
|
||||
}
|
||||
|
||||
protected void tearDown() throws Exception {
|
||||
con.setAutoCommit(true);
|
||||
if (stmt != null) {
|
||||
stmt.executeUpdate("DROP TABLE testfoo");
|
||||
stmt.close();
|
||||
}
|
||||
if (con != null) {
|
||||
JDBC2Tests.closeDB(con);
|
||||
}
|
||||
}
|
||||
|
||||
public void testFoo() {
|
||||
// Use the assert methods in junit.framework.TestCase
|
||||
// for the actual tests
|
||||
|
||||
// Just some silly examples
|
||||
assertNotNull(con);
|
||||
if (stmt == null) {
|
||||
fail("Where is my statement?");
|
||||
}
|
||||
}
|
||||
|
||||
public void testBar() {
|
||||
// Another test.
|
||||
}
|
||||
}
|
||||
|
||||
8. Running the JDBC 2 test suite from Sun against PostgreSQL
|
||||
------------------------------------------------------------
|
||||
Download the test suite from
|
||||
http://java.sun.com/products/jdbc/jdbctestsuite-1_2_1.html
|
||||
This is the JDBC 2 test suite that includes J2EE requirements.
|
||||
|
||||
1. Configure PostgreSQL so that it accepts TCP/IP connections and
|
||||
start the server. Prepare PostgreSQL by creating two users (cts1
|
||||
and cts2) and two databases (DB1 and DB2) in the cluster that is
|
||||
going to be used for JDBC testing.
|
||||
|
||||
2. Download the latest release versions of the J2EE, J2SE, and JDBC
|
||||
test suite from Sun's Java site (http://java.sun.com), and install
|
||||
according to Sun's documentation.
|
||||
|
||||
3. The following environment variables should be set:
|
||||
|
||||
CTS_HOME=<path where JDBC test suite installed (eg: /usr/local/jdbccts)>
|
||||
J2EE_HOME=<path where J2EE installed (eg: /usr/local/j2sdkee1.2.1)>
|
||||
JAVA_HOME=<path where J2SE installed (eg: /usr/local/jdk1.3.1)>
|
||||
NO_JAVATEST=Y
|
||||
LOCAL_CLASSES=<path to PostgreSQL JDBC driver jar>
|
||||
|
||||
4. In $J2EE_HOME/config/default.properties:
|
||||
|
||||
jdbc.drivers=org.postgresql.Driver
|
||||
jdbc.datasources=jdbc/DB1|jdbc:postgresql://localhost:5432/DB1|jdbc/DB2|jdbc:postgresq://localhost:5432/DB2
|
||||
|
||||
Of course, if PostgreSQL is running on a computer different from
|
||||
the one running the application server, localhost should be changed
|
||||
to the proper host. Also, 5432 should be changed to whatever port
|
||||
PostgreSQL is listening on (5432 is the default).
|
||||
|
||||
In $J2EE_HOME/bin/userconfig.sh:
|
||||
|
||||
Add $CTS_HOME/lib/harness.jar, $CTS_HOME/lib/moo.jar,
|
||||
$CTS_HOME/lib/util.jar to J2EE_CLASSPATH. Also add the path to
|
||||
the PostgreSQL JDBC jar to J2EE_CLASSPATH. Set the JAVA_HOME
|
||||
variable to where you installed the J2SE. You should end up with
|
||||
something like this:
|
||||
|
||||
CTS_HOME=/home/liams/linux/java/jdbccts
|
||||
J2EE_CLASSPATH=/home/liams/work/inst/postgresql-7.1.2/share/java/postgresql.jar:$CTS_HOME/lib/harness.jar:$CTS_HOME/lib/moo.jar:$CTS_HOME/lib/util.jar
|
||||
export J2EE_CLASSPATH
|
||||
|
||||
JAVA_HOME=/home/liams/linux/java/jdk1.3.1
|
||||
export JAVA_HOME
|
||||
|
||||
In $CTS_HOME/bin/cts.jte:
|
||||
|
||||
webServerHost=localhost
|
||||
webServerPort=8000
|
||||
servletServerHost=localhost
|
||||
servletServerPort=8000
|
||||
|
||||
5. Start the application server (j2ee):
|
||||
|
||||
$ cd $J2EE_HOME
|
||||
$ bin/j2ee -verbose
|
||||
|
||||
The server can be stopped after the tests have finished:
|
||||
|
||||
$ cd $J2EE_HOME
|
||||
$ bin/j2ee -stop
|
||||
|
||||
6. Run the JDBC tests:
|
||||
|
||||
$ cd $CTS_HOME/tests/jdbc/ee
|
||||
$ make jdbc-tests
|
||||
|
||||
At the time of writing of this document, a great number of tests
|
||||
in this test suite fail.
|
||||
|
||||
9 Credits, feedback
|
||||
-------------------
|
||||
The parts of this document describing the PostgreSQL test suite
|
||||
were originally written by Rene Pijlman. Liam Stewart contributed
|
||||
the section on the Sun JDBC 2 test suite.
|
||||
|
||||
Please send your questions about the JDBC test suites or suggestions
|
||||
for improvement to the pgsql-jdbc@postgresql.org mailing list.
|
||||
|
||||
The source of this document is maintained in
|
||||
src/interfaces/jdbc/org/postgresql/test/README in CVS. Patches for
|
||||
improvement can be send to the mailing list
|
||||
pgsql-patches@postgresql.org.
|
||||
Loading…
Reference in New Issue
Block a user