add selectOptionByIndex. fixes #25

Author: ddavison

src/main/java/io/ddavison/conductor/Conductor.java

@@ -121,6 +121,16 @@ public interface Conductor<Test> {
     Test selectOptionByValue(String css, String value);
     Test selectOptionByValue(By by, String value);
 
+
+    /**
+     * Selects an option from a dropdown ({@literal <select> tag}) based on the index.
+     * @param css/by The element
+     * @param i The index of which it appears (zero based)
+     * @return The implementing class for fluency
+     */
+    Test selectOptionByIndex(String css, Integer i);
+    Test selectOptionByIndex(By by, Integer i);
+
     /**
      * Waits for a window to appear, then switches to it.
      * @param regex Regex enabled. Url of the window, or title.

src/main/java/io/ddavison/conductor/Locomotive.java

@@ -395,6 +395,20 @@ public Locomotive selectOptionByValue(By by, String value) {
         return this;
     }
 
+    @Override
+    public Locomotive selectOptionByIndex(String css, Integer i) {
+        return selectOptionByIndex(By.cssSelector(css), i);
+    }
+
+    @Override
+    public Locomotive selectOptionByIndex(By by, Integer i) {
+        Select box = new Select(waitForElement(by));
+        waitForCondition(ExpectedConditions.not(ExpectedConditions.invisibilityOfElementLocated(by)))
+        .waitForCondition(ExpectedConditions.elementToBeClickable(by));
+        box.selectByIndex(i);
+        return this;
+    }
+
     /* Window / Frame Switching */
 
     public Locomotive waitForWindow(String regex) {

src/test/java/io/ddavison/conductor/FrameworkTest.java

@@ -87,4 +87,12 @@ public void testGetTextFromTextArea() throws Exception {
         setText("#textArea", "some text")
         .validateText("#textArea", "some text");
     }
+
+    @Test
+    public void testSelectOptionByIndex() throws Exception {
+        selectOptionByIndex("#select", 2)
+        .validateText("#select", "3")
+        .selectOptionByIndex(By.xpath("//*[@id='select']"), 0)
+        .validateText("#select", "1");
+    }
 }