testing Clojure in Maven
- by Ralph
I am new at Maven and even newer at Clojure. As an exercise to learn the language, I am writing a spider solitaire player program. I also plan on writing a similar program in Scala to compare the implementations (see my post http://stackoverflow.com/questions/2571267/modern-java-alternatives-closed).
I have configured a Maven directory structure containing the usual src/main/clojure and src/test/clojure directories. My pom.xml file includes the clojure-maven-plugin. When I run "mvn test", it displays "No tests to run", despite my having test code in the src/test/clojure directory. As I misnaming something? Here is my pom.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SpiderPlayer</groupId>
<artifactId>SpiderPlayer</artifactId>
<version>1.0.0-SNAPSHOT</version>
<inceptionYear>2010</inceptionYear>
<packaging>jar</packaging>
<properties>
<maven.build.timestamp.format>yyMMdd.HHmm</maven.build.timestamp.format>
<main.dir>org/dogdaze/spider_player</main.dir>
<main.package>org.dogdaze.spider_player</main.package>
<main.class>${main.package}.Main</main.class>
</properties>
<build>
<sourceDirectory>src/main/clojure</sourceDirectory>
<testSourceDirectory>src/main/clojure</testSourceDirectory>
<plugins>
<plugin>
<groupId>com.theoryinpractise</groupId>
<artifactId>clojure-maven-plugin</artifactId>
<version>1.3.1</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<tasks>
<echo file="${project.build.sourceDirectory}/${main.dir}/Version.clj"
message="(ns ${main.package})${line.separator}"/>
<echo file="${project.build.sourceDirectory}/${main.dir}/Version.clj" append="true"
message="(def version "${maven.build.timestamp}")${line.separator}"/>
</tasks>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<goals>
<goal>single</goal>
</goals>
<phase>package</phase>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>${main.class}</mainClass>
</manifest>
</archive>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<redirectTestOutputToFile>true</redirectTestOutputToFile>
<skipTests>false</skipTests>
<skip>false</skip>
</configuration>
<executions>
<execution>
<id>surefire-it</id>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<skip>false</skip>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.2</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
Here is my Clojure source file (src/main/clojure/org/dogdaze/spider_player/Deck.clj):
; Copyright 2010 Dogdaze
(ns org.dogdaze.spider_player.Deck
(:use
[clojure.contrib.seq-utils
:only (shuffle)]))
(def suits [:clubs :diamonds :hearts :spades])
(def ranks [:ace :two :three :four :five :six :seven :eight :nine :ten :jack :queen :king])
(defn suit-seq
"Return 4 suits:
if number-of-suits == 1: :clubs :clubs :clubs :clubs
if number-of-suits == 2: :clubs :diamonds :clubs :diamonds
if number-of-suits == 4: :clubs :diamonds :hearts :spades."
[number-of-suits]
(take 4 (cycle (take number-of-suits suits))))
(defstruct card :rank :suit)
(defn unshuffled-deck
"Create an unshuffled deck containing all cards from the number of suits specified."
[number-of-suits]
(for
[rank ranks suit (suit-seq number-of-suits)]
(struct card rank suit)))
(defn deck
"Create a shuffled deck containing all cards from the number of suits specified."
[number-of-suits]
(shuffle (unshuffled-deck number-of-suits)))
Here is my test case (src/test/clojure/org/dogdaze/spider_player/TestDeck.clj):
; Copyright 2010 Dogdaze
(ns org.dogdaze.spider_player
(:use
clojure.set
clojure.test
org.dogdaze.spider_player.Deck))
(deftest test-suit-seq
(is (= (suit-seq 1) [:clubs :clubs :clubs :clubs]))
(is (= (suit-seq 2) [:clubs :diamonds :clubs :diamonds]))
(is (= (suit-seq 4) [:clubs :diamonds :hearts :spades])))
(def one-suit-deck
[{:rank :ace, :suit :clubs} {:rank :ace, :suit :clubs} {:rank :ace, :suit :clubs} {:rank :ace, :suit :clubs}
{:rank :two, :suit :clubs} {:rank :two, :suit :clubs} {:rank :two, :suit :clubs} {:rank :two, :suit :clubs}
{:rank :three, :suit :clubs} {:rank :three, :suit :clubs} {:rank :three, :suit :clubs} {:rank :three, :suit :clubs}
{:rank :four, :suit :clubs} {:rank :four, :suit :clubs} {:rank :four, :suit :clubs} {:rank :four, :suit :clubs}
{:rank :five, :suit :clubs} {:rank :five, :suit :clubs} {:rank :five, :suit :clubs} {:rank :five, :suit :clubs}
{:rank :six, :suit :clubs} {:rank :six, :suit :clubs} {:rank :six, :suit :clubs} {:rank :six, :suit :clubs}
{:rank :seven, :suit :clubs} {:rank :seven, :suit :clubs} {:rank :seven, :suit :clubs} {:rank :seven, :suit :clubs}
{:rank :eight, :suit :clubs} {:rank :eight, :suit :clubs} {:rank :eight, :suit :clubs} {:rank :eight, :suit :clubs}
{:rank :nine, :suit :clubs} {:rank :nine, :suit :clubs} {:rank :nine, :suit :clubs} {:rank :nine, :suit :clubs}
{:rank :ten, :suit :clubs} {:rank :ten, :suit :clubs} {:rank :ten, :suit :clubs} {:rank :ten, :suit :clubs}
{:rank :jack, :suit :clubs} {:rank :jack, :suit :clubs} {:rank :jack, :suit :clubs} {:rank :jack, :suit :clubs}
{:rank :queen, :suit :clubs} {:rank :queen, :suit :clubs} {:rank :queen, :suit :clubs} {:rank :queen, :suit :clubs}
{:rank :king, :suit :clubs} {:rank :king, :suit :clubs} {:rank :king, :suit :clubs} {:rank :king, :suit :clubs}])
(def two-suits-deck
[{:rank :ace, :suit :clubs} {:rank :ace, :suit :diamonds} {:rank :ace, :suit :clubs} {:rank :ace, :suit :diamonds}
{:rank :two, :suit :clubs} {:rank :two, :suit :diamonds} {:rank :two, :suit :clubs} {:rank :two, :suit :diamonds}
{:rank :three, :suit :clubs} {:rank :three, :suit :diamonds} {:rank :three, :suit :clubs} {:rank :three, :suit :diamonds}
{:rank :four, :suit :clubs} {:rank :four, :suit :diamonds} {:rank :four, :suit :clubs} {:rank :four, :suit :diamonds}
{:rank :five, :suit :clubs} {:rank :five, :suit :diamonds} {:rank :five, :suit :clubs} {:rank :five, :suit :diamonds}
{:rank :six, :suit :clubs} {:rank :six, :suit :diamonds} {:rank :six, :suit :clubs} {:rank :six, :suit :diamonds}
{:rank :seven, :suit :clubs} {:rank :seven, :suit :diamonds} {:rank :seven, :suit :clubs} {:rank :seven, :suit :diamonds}
{:rank :eight, :suit :clubs} {:rank :eight, :suit :diamonds} {:rank :eight, :suit :clubs} {:rank :eight, :suit :diamonds}
{:rank :nine, :suit :clubs} {:rank :nine, :suit :diamonds} {:rank :nine, :suit :clubs} {:rank :nine, :suit :diamonds}
{:rank :ten, :suit :clubs} {:rank :ten, :suit :diamonds} {:rank :ten, :suit :clubs} {:rank :ten, :suit :diamonds}
{:rank :jack, :suit :clubs} {:rank :jack, :suit :diamonds} {:rank :jack, :suit :clubs} {:rank :jack, :suit :diamonds}
{:rank :queen, :suit :clubs} {:rank :queen, :suit :diamonds} {:rank :queen, :suit :clubs} {:rank :queen, :suit :diamonds}
{:rank :king, :suit :clubs} {:rank :king, :suit :diamonds} {:rank :king, :suit :clubs} {:rank :king, :suit :diamonds}])
(def four-suits-deck
[{:rank :ace, :suit :clubs} {:rank :ace, :suit :diamonds} {:rank :ace, :suit :hearts} {:rank :ace, :suit :spades}
{:rank :two, :suit :clubs} {:rank :two, :suit :diamonds} {:rank :two, :suit :hearts} {:rank :two, :suit :spades}
{:rank :three, :suit :clubs} {:rank :three, :suit :diamonds} {:rank :three, :suit :hearts} {:rank :three, :suit :spades}
{:rank :four, :suit :clubs} {:rank :four, :suit :diamonds} {:rank :four, :suit :hearts} {:rank :four, :suit :spades}
{:rank :five, :suit :clubs} {:rank :five, :suit :diamonds} {:rank :five, :suit :hearts} {:rank :five, :suit :spades}
{:rank :six, :suit :clubs} {:rank :six, :suit :diamonds} {:rank :six, :suit :hearts} {:rank :six, :suit :spades}
{:rank :seven, :suit :clubs} {:rank :seven, :suit :diamonds} {:rank :seven, :suit :hearts} {:rank :seven, :suit :spades}
{:rank :eight, :suit :clubs} {:rank :eight, :suit :diamonds} {:rank :eight, :suit :hearts} {:rank :eight, :suit :spades}
{:rank :nine, :suit :clubs} {:rank :nine, :suit :diamonds} {:rank :nine, :suit :hearts} {:rank :nine, :suit :spades}
{:rank :ten, :suit :clubs} {:rank :ten, :suit :diamonds} {:rank :ten, :suit :hearts} {:rank :ten, :suit :spades}
{:rank :jack, :suit :clubs} {:rank :jack, :suit :diamonds} {:rank :jack, :suit :hearts} {:rank :jack, :suit :spades}
{:rank :queen, :suit :clubs} {:rank :queen, :suit :diamonds} {:rank :queen, :suit :hearts} {:rank :queen, :suit :spades}
{:rank :king, :suit :clubs} {:rank :king, :suit :diamonds} {:rank :king, :suit :hearts} {:rank :king, :suit :spades}])
(deftest test-unshuffled-deck
(is (= (unshuffled-deck 1) one-suit-deck))
(is (= (unshuffled-deck 2) two-suits-deck))
(is (= (unshuffled-deck 4) four-suits-deck)))
(deftest test-shuffled-deck
(is (= (set (deck 1)) (set one-suit-deck)))
(is (= (set (deck 2)) (set two-suits-deck)))
(is (= (set (deck 4)) (set four-suits-deck))))
(run-tests)
Any idea why the test is not running? BTW, feel free to suggest improvements to the Clojure code.
Thanks, Ralph
