[site] Find usages test

_SUMMARY.md

@@ -71,7 +71,7 @@
         * [Formatter Test](formatter_test.html)
         * [Rename Test](rename_test.html)
         * [Folding Test](folding_test.html)
-        * [Find Usages Test](TODO)
+        * [Find Usages Test](find_usages_test.html)
         * [Commenter Test](TODO)
         * [Reference Test](TODO)
 * [Plugin Development FAQ](faq.html)

find_usages_test.md

@@ -0,0 +1,62 @@
+---
+title: Find Usages Test
+---
+
+<!--
+INITIAL_SOURCE https://confluence.jetbrains.com/display/IntelliJIDEA/Find+Usages+Test
+-->
+
+# {{ page.title }}
+
+In this test we will check if the find usages provider, implemented in the
+[Find Usages Provider](find_usages_provider.html)
+section of the
+[Custom Language Support Tutorial](cls_tutorial.html),
+works correctly.
+
+### 1. Define test data
+
+Create a file *FindUsagesTestData.simple*.
+
+```bash
+# You are reading the ".properties" entry.
+! The exclamation mark can also mark text as comments.
+<caret>website = http://en.wikipedia.org/
+
+language = English
+# The backslash below tells the application to continue reading
+# the value onto the next line.
+message = Welcome to \
+          Wikipedia!
+# Add spaces to the key
+key\ with\ spaces = This is the value that could be looked up with the key "key with spaces".
+# Unicode
+tab : \u0009
+```
+
+Create a file *FindUsagesTestData.java*.
+
+```java
+public class Test {
+    public static void main(String[] args) {
+        System.out.println("simple:website");
+    }
+}
+```
+
+### 2. Define a test method
+
+```java
+public void testFindUsages() {
+    Collection<UsageInfo> usageInfos = myFixture.testFindUsages("FindUsagesTestData.simple", "FindUsagesTestData.java");
+    assertEquals(1, usageInfos.size());
+}
+```
+
+### 3. Run the test
+
+Run the test and make sure it's green.
+
+-----
+
+[Previous](folding_test.html) [Top](writing_tests_for_plugins.html) [Next](commenter_test.html)

writing_tests_for_plugins.md

@@ -21,7 +21,7 @@ and cover its code with functional tests.
 *  [Formatter Test](formatter_test.html)
 *  [Rename Test](rename_test.html)
 *  [Folding Test](folding_test.html)
-*  [Find Usages Test](TODO)
+*  [Find Usages Test](find_usages_test.html)
 *  [Commenter Test](TODO)
 *  [Reference Test](TODO)