diff --git a/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/SpecMap.kt b/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/SpecMap.kt
new file mode 100644
index 000000000..706f2fefd
--- /dev/null
+++ b/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/SpecMap.kt
@@ -0,0 +1,8 @@
+package org.jetbrains.kotlin.spec.entity
+
+import kotlinx.serialization.json.JsonElement
+
+sealed class SpecMap() {
+    class Tests(val json: JsonElement)
+    class Sections(val json: JsonElement)
+}
\ No newline at end of file
diff --git a/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/TestMap.kt b/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/TestMap.kt
deleted file mode 100644
index c6a4f459a..000000000
--- a/web/src/main/kotlin/org/jetbrains/kotlin/spec/entity/TestMap.kt
+++ /dev/null
@@ -1,7 +0,0 @@
-package org.jetbrains.kotlin.spec.entity
-
-import kotlinx.serialization.json.JsonElement
-
-class TestMap(val sectionTestMap: JsonElement)
-
-class SectionsMap(val sectionTestMap: JsonElement)
\ No newline at end of file
diff --git a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/GithubTestsLoader.kt b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/GithubTestsLoader.kt
index fa3b0312b..738cb4dca 100644
--- a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/GithubTestsLoader.kt
+++ b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/GithubTestsLoader.kt
@@ -5,9 +5,8 @@ import js.externals.jquery.JQueryXHR
 import js.externals.jquery.`$`
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
-import org.jetbrains.kotlin.spec.entity.SectionsMap
+import org.jetbrains.kotlin.spec.entity.SpecMap
 import org.jetbrains.kotlin.spec.entity.SpecSection
-import org.jetbrains.kotlin.spec.entity.TestMap
 import org.jetbrains.kotlin.spec.entity.test.SpecTest
 import org.jetbrains.kotlin.spec.entity.test.TestPlace
 import org.jetbrains.kotlin.spec.entity.test.parameters.TestInfo
@@ -63,9 +62,9 @@ interface GithubTestsLoader {
                 mainSectionName: String,
                 path: String,
                 testType: TestOrigin,
-                sectionsMapByTestArea: Map<TestArea, SectionsMap>
-        ): Promise<Map<TestArea, TestMap>> = Promise { resolve, _ ->
-            val resultMap = mutableMapOf<TestArea, TestMap>()
+                sectionsMapByTestArea: Map<TestArea, SpecMap.Sections>
+        ): Promise<Map<TestArea, SpecMap.Tests>> = Promise { resolve, _ ->
+            val resultMap = mutableMapOf<TestArea, SpecMap.Tests>()
             val loadableTestAreas: MutableSet<TestArea> = mutableSetOf()
             testAreasToLoad.forEach {
                 if (sectionsMapByTestArea.isTestsMapExists(testArea = it, requestedMainSection = mainSectionName, requestedSubsectionPath = path)) {
@@ -76,14 +75,14 @@ interface GithubTestsLoader {
                     *(loadableTestAreas.associateWith {
                         `$`.ajax(getFullTestMapPath(testType, it, mainSectionName, path), jQueryAjaxSettings { })
                                 .then({ response: Any?, _: Any ->
-                                    resultMap[it] = TestMap(parseJsonText(response.toString()))
+                                    resultMap[it] = SpecMap.Tests(parseJsonText(response.toString()))
                                 })
                     }.values.toTypedArray())
             ).then({ _: Any?, _: Any -> resolve(resultMap) }, { resolve(resultMap) })
         }
 
-        private fun Map<TestArea, SectionsMap>.isTestsMapExists(testArea: TestArea, requestedMainSection: String, requestedSubsectionPath: String): Boolean {
-            val subsectionsArray = this[testArea]?.sectionTestMap?.jsonObject?.get(requestedMainSection) ?: return false
+        private fun Map<TestArea, SpecMap.Sections>.isTestsMapExists(testArea: TestArea, requestedMainSection: String, requestedSubsectionPath: String): Boolean {
+            val subsectionsArray = this[testArea]?.json?.jsonObject?.get(requestedMainSection) ?: return false
             subsectionsArray.jsonArray.forEach { jsonElement ->
                 if (jsonElement.primitive.content == requestedSubsectionPath)
                     return true
@@ -99,13 +98,13 @@ interface GithubTestsLoader {
                 }
 
 
-        fun loadSectionsMapFileFromRawGithub(): Promise<Map<TestArea, SectionsMap>> = Promise { resolve, _ ->
-            val resultMap = mutableMapOf<TestArea, SectionsMap>()
+        fun loadSectionsMapFileFromRawGithub(): Promise<Map<TestArea, SpecMap.Sections>> = Promise { resolve, _ ->
+            val resultMap = mutableMapOf<TestArea, SpecMap.Sections>()
             `$`.`when`(
                     *(testAreasToLoad.asList().associateWith {
                         `$`.ajax(getFullSectionsMapPath(it), jQueryAjaxSettings { })
                                 .then({ response: Any?, _: Any ->
-                                    resultMap[it] = SectionsMap(parseJsonText(response.toString()))
+                                    resultMap[it] = SpecMap.Sections(parseJsonText(response.toString()))
                                 })
                     }.values.toTypedArray())
             ).then({ _: Any?, _: Any -> resolve(resultMap) }, { resolve(resultMap) })
@@ -136,5 +135,5 @@ interface GithubTestsLoader {
 
     }
 
-    fun loadTestFiles(sectionName: String, mainSectionName: String, sectionsPath: List<String>, sectionsMapsByTestArea: Map<TestArea, SectionsMap>): Promise<Promise<SpecSection>>
+    fun loadTestFiles(sectionName: String, mainSectionName: String, sectionsPath: List<String>, sectionsMapsByTestArea: Map<TestArea, SpecMap.Sections>): Promise<Promise<SpecSection>>
 }
diff --git a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/LoaderByTestsMapFile.kt b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/LoaderByTestsMapFile.kt
index 7945f8c04..026f1cc13 100644
--- a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/LoaderByTestsMapFile.kt
+++ b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/LoaderByTestsMapFile.kt
@@ -1,7 +1,6 @@
 package org.jetbrains.kotlin.spec.loader
 
-import org.jetbrains.kotlin.spec.entity.TestMap
-import org.jetbrains.kotlin.spec.entity.SectionsMap
+import org.jetbrains.kotlin.spec.entity.SpecMap
 import org.jetbrains.kotlin.spec.entity.SpecSection
 import org.jetbrains.kotlin.spec.entity.test.SpecTest
 import org.jetbrains.kotlin.spec.entity.test.TestPlace
@@ -17,8 +16,8 @@ import kotlin.js.Promise
 
 class LoaderByTestsMapFile : GithubTestsLoader {
 
-    private fun loadTestsMapFile(mainSectionName: String, sectionsPath: String, sectionsMapByTestArea: Map<TestArea, SectionsMap>
-    ): Promise<Map<TestArea, TestMap>> {
+    private fun loadTestsMapFile(mainSectionName: String, sectionsPath: String, sectionsMapByTestArea: Map<TestArea, SpecMap.Sections>
+    ): Promise<Map<TestArea, SpecMap.Tests>> {
         return loadTestMapFileFromRawGithub(
                 mainSectionName = mainSectionName,
                 path = sectionsPath,
@@ -30,9 +29,9 @@ class LoaderByTestsMapFile : GithubTestsLoader {
     private fun loadSectionsMapFile() = loadSectionsMapFileFromRawGithub()
 
 
-    private fun getPromisesForTestFilesFromTestMap(testsMap: TestMap?, testArea: TestArea): Array<Promise<SpecTest>> {
+    private fun getPromisesForTestFilesFromTestMap(testsMap: SpecMap.Tests?, testArea: TestArea): Array<Promise<SpecTest>> {
         val promises = mutableListOf<Promise<SpecTest>>()
-        val testsMap = testsMap?.sectionTestMap ?: return promises.toTypedArray()
+        val testsMap = testsMap?.json ?: return promises.toTypedArray()
 
         for ((paragraph, testsByParagraphs) in testsMap.jsonObject) {
             for ((testType, testsByTypes) in testsByParagraphs.jsonObject) {
@@ -53,7 +52,7 @@ class LoaderByTestsMapFile : GithubTestsLoader {
     override fun loadTestFiles(sectionToLoadName: String,
                                mainSectionPath: String,
                                sectionsPath: List<String>,
-                               sectionsMapsByTestArea: Map<TestArea, SectionsMap>
+                               sectionsMapsByTestArea: Map<TestArea, SpecMap.Sections>
     ) = loadTestsMapFile(mainSectionName = mainSectionPath,
             sectionsPath = if (mainSectionPath == sectionToLoadName && sectionsPath.isEmpty()) ""
             else if (sectionsPath.isNotEmpty()) sectionsPath.joinToString("/") + "/" + sectionToLoadName
@@ -71,7 +70,7 @@ class LoaderByTestsMapFile : GithubTestsLoader {
 
     private fun getPromiseForTests(
             testArea: TestArea,
-            testMaps: Map<TestArea, TestMap>,
+            testMaps: Map<TestArea, SpecMap.Tests>,
             mapOfTests: MutableMap<TestArea, List<SpecTest>>
     ) = Promise.all(
             getPromisesForTestFilesFromTestMap(testMaps[testArea], testArea))
diff --git a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/SpecTestsLoader.kt b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/SpecTestsLoader.kt
index b90afa21a..ac7743dba 100644
--- a/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/SpecTestsLoader.kt
+++ b/web/src/main/kotlin/org/jetbrains/kotlin/spec/loader/SpecTestsLoader.kt
@@ -2,7 +2,7 @@ package org.jetbrains.kotlin.spec.loader
 
 import js.externals.jquery.JQuery
 import js.externals.jquery.`$`
-import org.jetbrains.kotlin.spec.entity.SectionsMap
+import org.jetbrains.kotlin.spec.entity.SpecMap
 import org.jetbrains.kotlin.spec.entity.SpecSection
 import org.jetbrains.kotlin.spec.entity.test.parameters.testArea.TestArea
 import org.jetbrains.kotlin.spec.utils.format
@@ -169,11 +169,12 @@ class SpecTestsLoader {
 
     fun onTestsLoadingLinkClick(link: JQuery) {
         loader.loadSectionsMapFiles()
-                .then { sectionsMapsByTestArea -> loadTests(link, sectionsMapsByTestArea)
-        }
+                .then { sectionsMapsByTestArea ->
+                    loadTests(link, sectionsMapsByTestArea)
+                }
     }
 
-    private fun loadTests(link: JQuery, sectionsMapsByTestArea: Map<TestArea, SectionsMap>){
+    private fun loadTests(link: JQuery, sectionsMapsByTestArea: Map<TestArea, SpecMap.Sections>) {
         val section = link.parent("h2, h3, h4, h5")
         val paragraphsInfo = getParagraphsInfo(section)
         val nestedSections = getNestedSections(section)
@@ -196,9 +197,9 @@ class SpecTestsLoader {
         }
 
         loader.loadTestFiles(
-                sectionToLoadName= sectionToLoadName,
+                sectionToLoadName = sectionToLoadName,
                 mainSectionPath = mainSectionsPath,
-                sectionsPath= sectionsPath,
+                sectionsPath = sectionsPath,
                 sectionsMapsByTestArea = sectionsMapsByTestArea)
                 .then { sectionTestSet ->