IDEA-CR-44517 RUBY-17964 markdown enter handler: more tests

(cherry picked from commit ebc21c69d2f91089e1eabb7d089470e0feee1661)
(cherry picked from commit a31de5024303e30525f1598fb18cfda1db1d7dbb)

GitOrigin-RevId: c65f7ab620c391f0737680f7c9375258073a5087

plugins/markdown/test/data/enter/codeFenceWithSpace.after.md

+```html
+abc 
+<caret>
+```
\ No newline at end of file

plugins/markdown/test/data/enter/codeFenceWithSpace.before.md

+```html
+abc <caret>
+```
\ No newline at end of file

plugins/markdown/test/data/enter/quoteInListMiddleWithSpace.after.md

+- >qwe
+  >asd 
+  ><caret>
\ No newline at end of file

plugins/markdown/test/data/enter/quoteInListMiddleWithSpace.before.md

+- >qwe
+  >asd <caret>
\ No newline at end of file

plugins/markdown/test/data/enter/quoteInListWithSpace.after.md

+- > 
+  ><caret>
\ No newline at end of file

plugins/markdown/test/data/enter/quoteInListWithSpace.before.md

+- > <caret>
\ No newline at end of file

plugins/markdown/test/src/org/intellij/plugins/markdown/enter/MarkdownEnterHandlerTest.java

@@ -38,6 +38,18 @@ public class MarkdownEnterHandlerTest extends BasePlatformTestCase {
     doTest();
   }
 
+  public void testQuoteInListWithSpace() {
+    doTest();
+  }
+
+  public void testCodeFenceWithSpace() {
+    doTest();
+  }
+
+  public void testQuoteInListMiddleWithSpace() {
+    doTest();
+  }
+
   private void doTest() {
     String testName = getTestName(true);
     myFixture.configureByFile(testName + ".before.md");