Live templates. Copy them in ~/Library/Preferences/IntelliJIdea14/templates for Ultimate or ~/Library/Preferences/IdeaIC14/templates for Community. In Linux: ~/.IdeaIC2016.2/config/templates

custom.xml

<templateSet group="custom">
  <template name="ati" value="org.hamcrest.MatcherAssert.assertThat($ACTUAL$, org.hamcrest.CoreMatchers.is($EXPECTED$));" description="assertThat is" toReformat="true" toShortenFQNames="true" useStaticImport="true">
    <variable name="ACTUAL" expression="" defaultValue="" alwaysStopAt="true" />
    <variable name="EXPECTED" expression="" defaultValue="" alwaysStopAt="true" />
    <context>
      <option name="JAVA_CODE" value="false" />
      <option name="JAVA_STATEMENT" value="true" />
      <option name="JAVA_EXPRESSION" value="true" />
      <option name="JAVA_DECLARATION" value="false" />
      <option name="JAVA_COMMENT" value="false" />
      <option name="JAVA_STRING" value="false" />
      <option name="COMPLETION" value="false" />
    </context>
  </template>
  <template name="wtr" value="org.mockito.Mockito.when($METHOD$).thenReturn($RETURN$);" description="when thenReturn" toReformat="true" toShortenFQNames="true" useStaticImport="true">
    <variable name="METHOD" expression="" defaultValue="" alwaysStopAt="true" />
    <variable name="RETURN" expression="" defaultValue="" alwaysStopAt="true" />
    <context>
      <option name="JAVA_CODE" value="false" />
      <option name="JAVA_STATEMENT" value="true" />
      <option name="JAVA_EXPRESSION" value="true" />
      <option name="JAVA_DECLARATION" value="false" />
      <option name="JAVA_COMMENT" value="false" />
      <option name="JAVA_STRING" value="false" />
      <option name="COMPLETION" value="false" />
    </context>
  </template>
  <template name="are" value="org.unitils.reflectionassert.ReflectionAssert.assertReflectionEquals($EXPECTED$, $ACTUAL$);" description="assertReflectionEquals" toReformat="true" toShortenFQNames="true" useStaticImport="true">
    <variable name="EXPECTED" expression="" defaultValue="" alwaysStopAt="true" />
    <variable name="ACTUAL" expression="" defaultValue="" alwaysStopAt="true" />
    <context>
      <option name="JAVA_CODE" value="false" />
      <option name="JAVA_STATEMENT" value="true" />
      <option name="JAVA_EXPRESSION" value="true" />
      <option name="JAVA_DECLARATION" value="false" />
      <option name="JAVA_COMMENT" value="false" />
      <option name="JAVA_STRING" value="false" />
      <option name="COMPLETION" value="false" />
    </context>
  </template>
</templateSet>