Allow docker image used for selenium to be specified, instead of alwa…

…ys trying to figure out from classpath dependencies. Refs #171

modules/selenium/src/main/java/org/testcontainers/containers/BrowserWebDriverContainer.java

@@ -36,15 +36,16 @@ public class BrowserWebDriverContainer<SELF extends BrowserWebDriverContainer<SE
 
     @Nullable
     private DesiredCapabilities desiredCapabilities;
+    private boolean imageNameIsSet = false;
+
     @Nullable
     private RemoteWebDriver driver;
-
     private VncRecordingMode recordingMode = VncRecordingMode.RECORD_FAILING;
     private File vncRecordingDirectory = new File("/tmp");
+
     private final Collection<VncRecordingSidekickContainer> currentVncRecordings = new ArrayList<>();
 
     private static final Logger LOGGER = LoggerFactory.getLogger(BrowserWebDriverContainer.class);
-
     private static final SimpleDateFormat filenameDateFormat = new SimpleDateFormat("YYYYMMdd-HHmmss");
 
     /**
@@ -53,9 +54,22 @@ public BrowserWebDriverContainer() {
 
     }
 
+    /**
+     * Constructor taking a specific webdriver container name and tag
+     * @param dockerImageName
+     */
+    public BrowserWebDriverContainer(String dockerImageName) {
+        super.setDockerImageName(dockerImageName);
+        this.imageNameIsSet = true;
+    }
+
 
     public SELF withDesiredCapabilities(DesiredCapabilities desiredCapabilities) {
-        super.setDockerImageName(getImageForCapabilities(desiredCapabilities));
+
+        if (! imageNameIsSet) {
+            super.setDockerImageName(getImageForCapabilities(desiredCapabilities));
+        }
+
         this.desiredCapabilities = desiredCapabilities;
         return self();
     }

modules/selenium/src/test/java/org/testcontainers/junit/SpecificImageNameWebDriverContainerTest.java

@@ -0,0 +1,28 @@
+package org.testcontainers.junit;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.openqa.selenium.remote.DesiredCapabilities;
+import org.testcontainers.containers.BrowserWebDriverContainer;
+
+import java.io.IOException;
+
+/**
+ *
+ */
+public class SpecificImageNameWebDriverContainerTest extends BaseWebDriverContainerTest {
+
+    @Rule
+    public BrowserWebDriverContainer firefox = new BrowserWebDriverContainer("selenium/standalone-firefox-debug:2.53.1-beryllium")
+            .withDesiredCapabilities(DesiredCapabilities.firefox());
+
+    @Test
+    public void simpleTest() throws IOException {
+        doSimpleWebdriverTest(firefox);
+    }
+
+    @Test
+    public void simpleExploreTest() throws IOException {
+        doSimpleExplore(firefox);
+    }
+}