HTML: fix of redundant dot and related autotest (#2289)

plugins/base/src/main/kotlin/renderers/html/SearchbarDataInstaller.kt

@@ -30,7 +30,7 @@ open class SearchbarDataInstaller(val context: DokkaContext) : PageTransformer {
         val id: String
             get() = with(driWithSourceSets.dri) {
                 listOfNotNull(
-                    packageName,
+                    packageName?.takeIf { it.isNotBlank() },
                     classNames,
                     callable?.name
                 ).joinToString(".")

plugins/base/src/test/kotlin/renderers/html/SearchbarDataInstallerTest.kt

@@ -0,0 +1,46 @@
+package renderers.html
+
+import org.jetbrains.dokka.base.testApi.testRunner.BaseAbstractTest
+import org.junit.Test
+import org.junit.jupiter.api.Assertions
+import utils.TestOutputWriterPlugin
+import utils.pagesJson
+
+class SearchbarDataInstallerTest: BaseAbstractTest() {
+
+    @Test
+    fun `should be displayed without leading dot`() {
+        val configuration = dokkaConfiguration {
+            moduleName = "Dokka Module"
+
+            sourceSets {
+                sourceSet {
+                    sourceRoots = listOf("src/kotlin/Test.kt")
+                }
+            }
+        }
+
+        val source = """
+            |/src/kotlin/Test.kt
+            |
+            |class Test
+            |
+        """.trimIndent()
+
+        val writerPlugin = TestOutputWriterPlugin()
+        testInline(
+            source,
+            configuration,
+            pluginOverrides = listOf(writerPlugin)
+        ) {
+            renderingStage = { _, _ ->
+                val searchRecords = writerPlugin.writer.pagesJson("scripts/pages.json")
+
+                Assertions.assertEquals(
+                    "Test",
+                    searchRecords.find { record -> record.name == "class Test" }?.description ?: ""
+                )
+            }
+        }
+    }
+}

plugins/base/src/test/kotlin/utils/HtmlUtils.kt

@@ -1,11 +1,16 @@
 package utils
 
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import org.jetbrains.dokka.base.renderers.html.SearchRecord
 import org.jsoup.Jsoup
 import org.jsoup.nodes.Element
 import org.jsoup.select.Elements
 
 internal fun TestOutputWriter.navigationHtml(): Element = contents.getValue("navigation.html").let { Jsoup.parse(it) }
 
+internal fun TestOutputWriter.pagesJson(fileName: String): List<SearchRecord> = jacksonObjectMapper().readValue(contents.getValue(fileName))
+
 internal fun Elements.selectNavigationGrid(): Element {
     return this.select("div.overview").select("span.nav-link-grid").single()
 }