ItEr24S08CUAsignacionGrupoRecursosAPlanificacionItEr23S10: Creating ScriptDependency class representing a dependency.

ganttzk/src/main/java/org/zkoss/ganttz/util/script/ScriptDependency.java

@@ -0,0 +1,55 @@
+package org.zkoss.ganttz.util.script;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.commons.lang.Validate;
+import org.apache.commons.lang.builder.HashCodeBuilder;
+
+/**
+ * Represents a dependency to a script
+ * @author Óscar González Fernández <ogonzalez@igalia.com>
+ */
+public class ScriptDependency {
+
+    private final String url;
+    private final List<ScriptDependency> dependsOn;
+
+    public ScriptDependency(String url) {
+        this(url, Collections.<ScriptDependency> emptyList());
+    }
+
+    public ScriptDependency(String url, Collection<? extends ScriptDependency> dependencies) {
+        Validate.notEmpty(url);
+        Validate.noNullElements(dependencies);
+        this.url = url;
+        this.dependsOn = Collections.unmodifiableList(new ArrayList<ScriptDependency>(
+                dependencies));
+    }
+
+    public String getURL() {
+        return this.url;
+    }
+
+    public List<ScriptDependency> getDependsOn() {
+        return dependsOn;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other)
+            return true;
+        if (other instanceof ScriptDependency) {
+            return url.equals(((ScriptDependency) other).url);
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return new HashCodeBuilder().append(url).toHashCode();
+    }
+
+}

ganttzk/src/test/java/org/zkoss/ganttz/util/script/ScriptDependencyTest.java

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+package org.zkoss.ganttz.util.script;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertThat;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+public class ScriptDependencyTest {
+
+    private ScriptDependency script;
+    private String url;
+    private List<ScriptDependency> dependencies;
+
+    private void givenScript() {
+        url = "blabla/zkau/web/js/yui/2.7.0/selector/selector-min.js";
+        dependencies = new ArrayList<ScriptDependency>();
+        dependencies.add(new ScriptDependency("blabla/blabla/bla.js"));
+        script = new ScriptDependency(url, dependencies);
+    }
+
+    @Test
+    public void aScriptHasAURL() {
+        givenScript();
+        assertThat(script.getURL(), equalTo(url));
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void theURLMustBeNotNull() {
+        new ScriptDependency(null);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void theURLMustBeNotEmpty() {
+        new ScriptDependency("");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void noDependenciesCanBeNull() {
+        List<ScriptDependency> list = new ArrayList<ScriptDependency>();
+        list.add(null);
+        new ScriptDependency("bla", list);
+    }
+
+    @Test
+    public void aScriptCanHaveDependencies() {
+        givenScript();
+        assertThat(script.getDependsOn(), equalTo(dependencies));
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void theDependenciesCannotBeModified() {
+        givenScript();
+        script.getDependsOn().clear();
+    }
+
+    @Test
+    public void twoScriptsAreEqualsIfHaveTheSameURL() {
+        givenScript();
+        ScriptDependency scriptDependencyWithSameURL = new ScriptDependency(url);
+        assertThat(scriptDependencyWithSameURL, equalTo(script));
+        assertThat(scriptDependencyWithSameURL.hashCode(), equalTo(script
+                .hashCode()));
+        assertThat(new ScriptDependency(url + "b"), not(equalTo(script)));
+    }
+
+}