diff --git a/kotlin-native/backend.native/tests/build.gradle b/kotlin-native/backend.native/tests/build.gradle
index 5489b73497f..8e56e7fbb94 100644
--- a/kotlin-native/backend.native/tests/build.gradle
+++ b/kotlin-native/backend.native/tests/build.gradle
@@ -3372,18 +3372,6 @@ createInterop("sockets") {
     it.defFile 'interop/basics/sockets.def'
 }
 
-createInterop("bitfields") {
-    it.defFile 'interop/basics/bitfields.def'
-}
-
-createInterop("cglobals") {
-    it.defFile 'interop/basics/cglobals.def'
-}
-
-createInterop("cfunptr") {
-    it.defFile 'interop/basics/cfunptr.def'
-}
-
 createInterop("cmacros") {
     it.defFile 'interop/basics/cmacros.def'
 }
@@ -3392,10 +3380,6 @@ createInterop("cunsupported") {
     it.defFile 'interop/basics/cunsupported.def'
 }
 
-createInterop("ctoKString") {
-    it.defFile 'interop/basics/ctoKString.def'
-}
-
 createInterop("ctypes") {
     it.defFile 'interop/basics/ctypes.def'
 }
@@ -3416,10 +3400,6 @@ createInterop("cstructs") {
     it.defFile 'interop/basics/cstructs.def'
 }
 
-createInterop("ccallbacksAndVarargs") {
-    it.defFile 'interop/basics/ccallbacksAndVarargs.def'
-}
-
 createInterop("cmangling") {
     it.defFile 'interop/basics/mangling.def'
 }
@@ -3440,22 +3420,6 @@ createInterop("cunion") {
     it.defFile 'interop/basics/cunion.def'
 }
 
-createInterop("cenums") {
-    it.defFile 'interop/basics/cenums.def'
-}
-
-createInterop("carrayPointers") {
-    it.defFile 'interop/basics/carrayPointers.def'
-}
-
-createInterop("auxiliaryCppSources") {
-    // We need to provide empty def file to create correct `KonanInteropTask`.
-    it.defFile 'interop/auxiliary_sources/auxiliaryCppSources.def'
-    it.headers "$projectDir/interop/auxiliary_sources/name.h"
-    it.extraOpts "-Xcompile-source", "$projectDir/interop/auxiliary_sources/name.cpp"
-    it.extraOpts "-Xsource-compiler-option", "-std=c++17"
-}
-
 createInterop("concurrentTerminate") {
     it.defFile 'interop/concurrentTerminate/concurrentTerminate.def'
     it.headers "$projectDir/interop/concurrentTerminate/async.h"
@@ -3464,12 +3428,6 @@ createInterop("concurrentTerminate") {
     it.extraOpts "-Xsource-compiler-option", "-std=c++17"
 }
 
-createInterop("incomplete_types") {
-    it.defFile 'interop/incomplete_types/library.def'
-    it.headers "$projectDir/interop/incomplete_types/library.h"
-    it.extraOpts "-Xcompile-source", "$projectDir/interop/incomplete_types/library.cpp"
-}
-
 createInterop("embedStaticLibraries") {
     it.defFile 'interop/embedStaticLibraries/embedStaticLibraries.def'
     it.headers "$projectDir/interop/embedStaticLibraries/embedStaticLibraries.h"
@@ -3494,27 +3452,10 @@ createInterop("embedStaticLibraries") {
     it.extraOpts '-staticLibrary', "2.a"
 }
 
-createInterop("kt43265") {
-    it.defFile 'interop/kt43265/kt43265.def'
-}
-
-createInterop("kt44283") {
-    it.defFile 'interop/kt44283/kt44283.def'
-}
-
 createInterop("kt51925") {
     it.defFile 'interop/kt51925/kt51925.def'
 }
 
-createInterop("kt54284") {
-    it.defFile 'interop/kt54284/kt54284.def'
-}
-
-createInterop("kt54284_fmodules") {
-    it.defFile 'interop/kt54284/kt54284.def'
-    it.extraOpts '-compiler-option', '-fmodules'
-}
-
 createInterop("kt43502") {
     it.defFile 'interop/kt43502/kt43502.def'
     it.headers "$projectDir/interop/kt43502/kt43502.h"
@@ -3566,10 +3507,6 @@ createInterop("workerSignals") {
     it.extraOpts "-Xcompile-source", "$projectDir/interop/workerSignals/workerSignals.cpp"
 }
 
-createInterop("cForwardDeclarations") {
-    it.defFile "interop/forwardDeclarations/cForwardDeclarations.def"
-}
-
 createInterop("cForwardDeclarationsTwoLibs1") {
     it.defFile "interop/forwardDeclarationsTwoLibs/cForwardDeclarationsTwoLibs1.def"
 }
@@ -3836,23 +3773,6 @@ standaloneTest("interop5") {
     UtilsKt.dependsOnPlatformLibs(it)
 }
 
-interopTest("interop_bitfields") {
-    disabled = isAggressiveGC // TODO: Investigate why too slow
-    source = "interop/basics/bf.kt"
-    interop = 'bitfields'
-}
-
-interopTest("interop_funptr") {
-    useGoldenData = true
-    source = "interop/basics/funptr.kt"
-    interop = 'cfunptr'
-}
-
-interopTest("interop_globals") {
-    source = "interop/basics/globals.kt"
-    interop = 'cglobals'
-}
-
 interopTest("interop_macros") {
     source = "interop/basics/macros.kt"
     interop = 'cmacros'
@@ -3863,11 +3783,6 @@ interopTest("interop_unsupported") {
     interop = 'cunsupported'
 }
 
-interopTest("interop_toKString") {
-    source = "interop/basics/toKString.kt"
-    interop = 'ctoKString'
-}
-
 interopTest("interop_types") {
     source = "interop/basics/types.kt"
     interop = 'ctypes'
@@ -3903,11 +3818,6 @@ interopTest("interop_mangling_keywords2") {
     interop = 'cmangling_keywords2'
 }
 
-interopTest("interop_auxiliarySources") {
-    source = "interop/auxiliary_sources/main.kt"
-    interop = 'auxiliaryCppSources'
-}
-
 interopTest("interop_concurrentTerminate") {
     source = "interop/concurrentTerminate/main.kt"
     interop = 'concurrentTerminate'
@@ -3915,11 +3825,6 @@ interopTest("interop_concurrentTerminate") {
     expectedExitStatus = 99
 }
 
-interopTest("interop_incompleteTypes") {
-    source = "interop/incomplete_types/main.kt"
-    interop = 'incomplete_types'
-}
-
 interopTest("interop_embedStaticLibraries") {
     source = "interop/embedStaticLibraries/main.kt"
     interop = 'embedStaticLibraries'
@@ -3935,11 +3840,6 @@ interopTest("interop_structs") {
     interop = 'cstructs'
 }
 
-interopTest("interop_callbacksAndVarargs") {
-    source = "interop/basics/callbacksAndVarargs.kt"
-    interop = 'ccallbacksAndVarargs'
-}
-
 interopTest("interop_threadStates") {
     source = "interop/threadStates/threadStates.kt"
     flags = ['-opt-in=kotlin.native.internal.InternalForKotlinNative']
@@ -3982,39 +3882,6 @@ interopTest("interop_union") {
     source = "interop/basics/union.kt"
 }
 
-interopTest("interop_enums") {
-    interop = 'cenums'
-    flags = ['-XXLanguage:+EnumEntries']
-    source = "interop/basics/enums.kt"
-}
-
-interopTest("interop_array_pointers") {
-    interop = 'carrayPointers'
-    source = "interop/basics/arrayPointers.kt"
-}
-
-interopTest("interop_kt43265") {
-    interop = 'kt43265'
-    source = "interop/kt43265/usage.kt"
-}
-
-interopTest("interop_kt44283") {
-    disabled = project.globalTestArgs.contains('-opt') // Incompatible with -g.
-    flags = ['-g']
-    interop = 'kt44283'
-    source = "interop/kt44283/main.kt"
-}
-
-interopTest("interop_kt54284") {
-    interop = 'kt54284'
-    source = "interop/kt54284/main.kt"
-}
-
-interopTest("interop_kt54284_fmodules") {
-    interop = 'kt54284_fmodules'
-    source = "interop/kt54284/main.kt"
-}
-
 // TODO: This test should be run with caches on.
 interopTest("interop_kt51925") {
     interop = 'kt51925'
@@ -4038,11 +3905,6 @@ dynamicTest("interop_kt43502") {
     useGoldenData = true
 }
 
-interopTest("interop_leakMemoryWithRunningThreadUnchecked") {
-    interop = 'leakMemoryWithRunningThread'
-    source = "interop/leakMemoryWithRunningThread/unchecked.kt"
-}
-
 interopTest("interop_leakMemoryWithRunningThreadChecked") {
     interop = 'leakMemoryWithRunningThread'
     source = "interop/leakMemoryWithRunningThread/checked.kt"
@@ -4102,11 +3964,6 @@ interopTest("interop_workerSignals") {
     interop = "workerSignals"
 }
 
-interopTest("interop_forwardDeclarations") {
-    source = "interop/forwardDeclarations/forwardDeclarations.kt"
-    interop = "cForwardDeclarations"
-}
-
 interopTest("interop_forwardDeclarationsTwoLibs") {
     source = "interop/forwardDeclarationsTwoLibs/forwardDeclarationsTwoLibs.kt"
     interop = "cForwardDeclarationsTwoLibs1"
diff --git a/kotlin-native/backend.native/tests/interop/auxiliary_sources/auxiliaryCppSources.def b/kotlin-native/backend.native/tests/interop/auxiliary_sources/auxiliaryCppSources.def
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/kotlin-native/backend.native/tests/interop/incomplete_types/library.def b/kotlin-native/backend.native/tests/interop/incomplete_types/library.def
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/kotlin-native/backend.native/tests/interop/basics/carrayPointers.def b/native/native.tests/testData/CInterop/executable/arrayPointers/arrayPointers.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/carrayPointers.def
rename to native/native.tests/testData/CInterop/executable/arrayPointers/arrayPointers.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/arrayPointers.kt b/native/native.tests/testData/CInterop/executable/arrayPointers/arrayPointers.kt
similarity index 94%
rename from kotlin-native/backend.native/tests/interop/basics/arrayPointers.kt
rename to native/native.tests/testData/CInterop/executable/arrayPointers/arrayPointers.kt
index f33cdb3613d..61c019babc3 100644
--- a/kotlin-native/backend.native/tests/interop/basics/arrayPointers.kt
+++ b/native/native.tests/testData/CInterop/executable/arrayPointers/arrayPointers.kt
@@ -1,6 +1,6 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import carrayPointers.*
+import arrayPointers.*
 import kotlin.test.*
 import kotlinx.cinterop.*
 
diff --git a/kotlin-native/backend.native/tests/interop/auxiliary_sources/name.h b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.aux.h
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/auxiliary_sources/name.h
rename to native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.aux.h
diff --git a/kotlin-native/backend.native/tests/interop/auxiliary_sources/name.cpp b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.cpp
similarity index 76%
rename from kotlin-native/backend.native/tests/interop/auxiliary_sources/name.cpp
rename to native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.cpp
index 14f6b211d85..3f321734742 100644
--- a/kotlin-native/backend.native/tests/interop/auxiliary_sources/name.cpp
+++ b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.cpp
@@ -1,5 +1,5 @@
 #include <string>
-#include "name.h"
+#include "auxiliarySources.aux.h"
 
 static std::string _name = "Hello from C++";
 
diff --git a/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.def b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.def
new file mode 100644
index 00000000000..4389c1838fa
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.def
@@ -0,0 +1,2 @@
+# The def file is empty intentianally
+# `auxiliarySources.aux.h` is meant to be included via `-header` option of cinterop tool
diff --git a/kotlin-native/backend.native/tests/interop/auxiliary_sources/main.kt b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.kt
similarity index 86%
rename from kotlin-native/backend.native/tests/interop/auxiliary_sources/main.kt
rename to native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.kt
index 2bba4e61263..3812cfb5b30 100644
--- a/kotlin-native/backend.native/tests/interop/auxiliary_sources/main.kt
+++ b/native/native.tests/testData/CInterop/executable/auxiliarySources/auxiliarySources.kt
@@ -1,6 +1,6 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import auxiliaryCppSources.*
+import auxiliarySources.*
 import kotlin.test.*
 import kotlinx.cinterop.*
 
diff --git a/kotlin-native/backend.native/tests/interop/basics/bitfields.def b/native/native.tests/testData/CInterop/executable/bitfields/bitfields.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/bitfields.def
rename to native/native.tests/testData/CInterop/executable/bitfields/bitfields.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/bf.kt b/native/native.tests/testData/CInterop/executable/bitfields/bitfields.kt
similarity index 97%
rename from kotlin-native/backend.native/tests/interop/basics/bf.kt
rename to native/native.tests/testData/CInterop/executable/bitfields/bitfields.kt
index ef6739c61e3..e2aa9432dbb 100644
--- a/kotlin-native/backend.native/tests/interop/basics/bf.kt
+++ b/native/native.tests/testData/CInterop/executable/bitfields/bitfields.kt
@@ -2,6 +2,8 @@
  * Copyright 2010-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
+// May need disabling when gcSchedulerType=aggressive . since it may be too slow
+
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
 import bitfields.*
diff --git a/kotlin-native/backend.native/tests/interop/basics/ccallbacksAndVarargs.def b/native/native.tests/testData/CInterop/executable/callbacksAndVarargs/callbacksAndVarargs.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/ccallbacksAndVarargs.def
rename to native/native.tests/testData/CInterop/executable/callbacksAndVarargs/callbacksAndVarargs.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/callbacksAndVarargs.kt b/native/native.tests/testData/CInterop/executable/callbacksAndVarargs/callbacksAndVarargs.kt
similarity index 98%
rename from kotlin-native/backend.native/tests/interop/basics/callbacksAndVarargs.kt
rename to native/native.tests/testData/CInterop/executable/callbacksAndVarargs/callbacksAndVarargs.kt
index 30276377e53..514b2927aa2 100644
--- a/kotlin-native/backend.native/tests/interop/basics/callbacksAndVarargs.kt
+++ b/native/native.tests/testData/CInterop/executable/callbacksAndVarargs/callbacksAndVarargs.kt
@@ -6,7 +6,7 @@
 
 import kotlin.test.*
 import kotlinx.cinterop.*
-import ccallbacksAndVarargs.*
+import callbacksAndVarargs.*
 
 fun main() {
     testStructCallbacks()
diff --git a/kotlin-native/backend.native/tests/interop/basics/cenums.def b/native/native.tests/testData/CInterop/executable/enums/enums.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/cenums.def
rename to native/native.tests/testData/CInterop/executable/enums/enums.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/enums.kt b/native/native.tests/testData/CInterop/executable/enums/enums.kt
similarity index 95%
rename from kotlin-native/backend.native/tests/interop/basics/enums.kt
rename to native/native.tests/testData/CInterop/executable/enums/enums.kt
index b147bdab53e..f568038f2da 100644
--- a/kotlin-native/backend.native/tests/interop/basics/enums.kt
+++ b/native/native.tests/testData/CInterop/executable/enums/enums.kt
@@ -2,9 +2,10 @@
  * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
+// !LANGUAGE: +EnumEntries
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import cenums.*
+import enums.*
 import kotlinx.cinterop.*
 import kotlin.test.*
 
diff --git a/kotlin-native/backend.native/tests/interop/forwardDeclarations/cForwardDeclarations.def b/native/native.tests/testData/CInterop/executable/forwardDeclarations/forwardDeclarations.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/forwardDeclarations/cForwardDeclarations.def
rename to native/native.tests/testData/CInterop/executable/forwardDeclarations/forwardDeclarations.def
diff --git a/kotlin-native/backend.native/tests/interop/forwardDeclarations/forwardDeclarations.kt b/native/native.tests/testData/CInterop/executable/forwardDeclarations/forwardDeclarations.kt
similarity index 97%
rename from kotlin-native/backend.native/tests/interop/forwardDeclarations/forwardDeclarations.kt
rename to native/native.tests/testData/CInterop/executable/forwardDeclarations/forwardDeclarations.kt
index e38cde37f27..282d68cef3b 100644
--- a/kotlin-native/backend.native/tests/interop/forwardDeclarations/forwardDeclarations.kt
+++ b/native/native.tests/testData/CInterop/executable/forwardDeclarations/forwardDeclarations.kt
@@ -1,7 +1,7 @@
 // This test mostly checks frontend behaviour.
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import cForwardDeclarations.*
+import forwardDeclarations.*
 import cnames.structs.StructDeclared
 
 import kotlin.test.assertEquals
diff --git a/kotlin-native/backend.native/tests/interop/basics/cfunptr.def b/native/native.tests/testData/CInterop/executable/funptr/funptr.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/cfunptr.def
rename to native/native.tests/testData/CInterop/executable/funptr/funptr.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/funptr.kt b/native/native.tests/testData/CInterop/executable/funptr/funptr.kt
similarity index 97%
rename from kotlin-native/backend.native/tests/interop/basics/funptr.kt
rename to native/native.tests/testData/CInterop/executable/funptr/funptr.kt
index b5e81736818..686a9adcee3 100644
--- a/kotlin-native/backend.native/tests/interop/basics/funptr.kt
+++ b/native/native.tests/testData/CInterop/executable/funptr/funptr.kt
@@ -1,3 +1,4 @@
+// OUT_DATA_FILE: funptr.out
 /*
  * Copyright 2010-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
@@ -5,7 +6,7 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
 import kotlinx.cinterop.*
-import cfunptr.*
+import funptr.*
 import kotlin.test.*
 
 typealias NotSoLongSignatureFunction = (
diff --git a/kotlin-native/backend.native/tests/interop/basics/funptr.out b/native/native.tests/testData/CInterop/executable/funptr/funptr.out
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/funptr.out
rename to native/native.tests/testData/CInterop/executable/funptr/funptr.out
diff --git a/kotlin-native/backend.native/tests/interop/basics/cglobals.def b/native/native.tests/testData/CInterop/executable/globals/globals.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/cglobals.def
rename to native/native.tests/testData/CInterop/executable/globals/globals.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/globals.kt b/native/native.tests/testData/CInterop/executable/globals/globals.kt
similarity index 97%
rename from kotlin-native/backend.native/tests/interop/basics/globals.kt
rename to native/native.tests/testData/CInterop/executable/globals/globals.kt
index df57370636a..b790bdcda30 100644
--- a/kotlin-native/backend.native/tests/interop/basics/globals.kt
+++ b/native/native.tests/testData/CInterop/executable/globals/globals.kt
@@ -5,7 +5,7 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class, kotlin.experimental.ExperimentalNativeApi::class)
 
 import kotlinx.cinterop.*
-import cglobals.*
+import globals.*
 
 fun main(args: Array<String>) {
     assert(g1__ == 42)
diff --git a/kotlin-native/backend.native/tests/interop/incomplete_types/library.h b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.aux.h
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/incomplete_types/library.h
rename to native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.aux.h
diff --git a/kotlin-native/backend.native/tests/interop/incomplete_types/library.cpp b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.cpp
similarity index 95%
rename from kotlin-native/backend.native/tests/interop/incomplete_types/library.cpp
rename to native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.cpp
index 32ff138ba85..441e9b08833 100644
--- a/kotlin-native/backend.native/tests/interop/incomplete_types/library.cpp
+++ b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.cpp
@@ -1,5 +1,5 @@
 #include <string>
-#include "library.h"
+#include "incompleteTypes.aux.h"
 
 extern "C" {
 
diff --git a/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.def b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.def
new file mode 100644
index 00000000000..a20fcb74b4d
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.def
@@ -0,0 +1,2 @@
+# The def file is empty intentianally
+# `incompleteTypes.aux.h` is meant to be included via `-header` option of cinterop tool
diff --git a/kotlin-native/backend.native/tests/interop/incomplete_types/main.kt b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.kt
similarity index 96%
rename from kotlin-native/backend.native/tests/interop/incomplete_types/main.kt
rename to native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.kt
index 80d53c32a02..880183f47d6 100644
--- a/kotlin-native/backend.native/tests/interop/incomplete_types/main.kt
+++ b/native/native.tests/testData/CInterop/executable/incompleteTypes/incompleteTypes.kt
@@ -1,6 +1,6 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import library.*
+import incompleteTypes.*
 import kotlinx.cinterop.*
 import kotlin.test.*
 
diff --git a/kotlin-native/backend.native/tests/interop/kt43265/kt43265.def b/native/native.tests/testData/CInterop/executable/kt43265/kt43265.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/kt43265/kt43265.def
rename to native/native.tests/testData/CInterop/executable/kt43265/kt43265.def
diff --git a/kotlin-native/backend.native/tests/interop/kt43265/usage.kt b/native/native.tests/testData/CInterop/executable/kt43265/kt43265.kt
similarity index 79%
rename from kotlin-native/backend.native/tests/interop/kt43265/usage.kt
rename to native/native.tests/testData/CInterop/executable/kt43265/kt43265.kt
index 7ccdca15207..8e3c5d62c66 100644
--- a/kotlin-native/backend.native/tests/interop/kt43265/usage.kt
+++ b/native/native.tests/testData/CInterop/executable/kt43265/kt43265.kt
@@ -1,6 +1,7 @@
 import kt43265.*
 import kotlin.test.*
 
+@kotlinx.cinterop.ExperimentalForeignApi
 fun main() {
     assertEquals(bcm2835FunctionSelect.BCM2835_GPIO_FSEL_ALT3, bcm2835FunctionSelect.BCM2835_GPIO_FSEL_MASK)
 }
\ No newline at end of file
diff --git a/kotlin-native/backend.native/tests/interop/kt44283/kt44283.def b/native/native.tests/testData/CInterop/executable/kt44283/kt44283.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/kt44283/kt44283.def
rename to native/native.tests/testData/CInterop/executable/kt44283/kt44283.def
diff --git a/kotlin-native/backend.native/tests/interop/kt44283/main.kt b/native/native.tests/testData/CInterop/executable/kt44283/kt44283.kt
similarity index 96%
rename from kotlin-native/backend.native/tests/interop/kt44283/main.kt
rename to native/native.tests/testData/CInterop/executable/kt44283/kt44283.kt
index a4458552783..194b91bb919 100644
--- a/kotlin-native/backend.native/tests/interop/kt44283/main.kt
+++ b/native/native.tests/testData/CInterop/executable/kt44283/kt44283.kt
@@ -7,6 +7,7 @@ import kotlin.test.*
 
 val callbackCounter = AtomicInt(0)
 
+@ExperimentalForeignApi
 fun main() {
     val func = staticCFunction<CValue<TestStruct>, Unit> {
         kotlin.native.runtime.GC.collect() // Helps to ensure that "runtime" is already initialized.
diff --git a/kotlin-native/backend.native/tests/interop/kt54284/kt54284.def b/native/native.tests/testData/CInterop/executable/kt54284/kt54284.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/kt54284/kt54284.def
rename to native/native.tests/testData/CInterop/executable/kt54284/kt54284.def
diff --git a/kotlin-native/backend.native/tests/interop/kt54284/main.kt b/native/native.tests/testData/CInterop/executable/kt54284/kt54284.kt
similarity index 93%
rename from kotlin-native/backend.native/tests/interop/kt54284/main.kt
rename to native/native.tests/testData/CInterop/executable/kt54284/kt54284.kt
index 9fca500b2af..726a2277a55 100644
--- a/kotlin-native/backend.native/tests/interop/kt54284/main.kt
+++ b/native/native.tests/testData/CInterop/executable/kt54284/kt54284.kt
@@ -2,6 +2,7 @@ import kotlinx.cinterop.*
 import kt54284.*
 import kotlin.test.*
 
+@ExperimentalForeignApi
 fun main() {
     assertEquals("FILE:__FILE__", KFILE)
     assertEquals("LINE:__LINE__", KLINE)
diff --git a/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.def b/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.def
new file mode 100644
index 00000000000..226b6dedb1c
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.def
@@ -0,0 +1,8 @@
+compilerOpts = -fmodules
+---
+#define KFILE "FILE:" __FILE__
+#define KLINE "LINE:" __LINE__
+#define KTIME "TIME:" __TIME__
+#define KDATE "DATE:" __DATE__
+#define KFILENAME "NAME:" __FILE_NAME__
+#define KBASEFILE "BASE:" __BASE_FILE__
diff --git a/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.kt b/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.kt
new file mode 100644
index 00000000000..321f5e9bc9c
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/kt54284_fmodules/kt54284_fmodules.kt
@@ -0,0 +1,13 @@
+import kotlinx.cinterop.*
+import kt54284_fmodules.*
+import kotlin.test.*
+
+@ExperimentalForeignApi
+fun main() {
+    assertEquals("FILE:__FILE__", KFILE)
+    assertEquals("LINE:__LINE__", KLINE)
+    assertEquals("TIME:__TIME__", KTIME)
+    assertEquals("DATE:__DATE__", KDATE)
+    assertEquals("NAME:__FILE_NAME__", KFILENAME)
+    assertEquals("BASE:__BASE_FILE__", KBASEFILE)
+}
diff --git a/native/native.tests/testData/CInterop/executable/KT-63048/library.def b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.def
similarity index 53%
rename from native/native.tests/testData/CInterop/executable/KT-63048/library.def
rename to native/native.tests/testData/CInterop/executable/kt63048/kt63048.def
index 7935e0cbdcc..7bc757c1528 100644
--- a/native/native.tests/testData/CInterop/executable/KT-63048/library.def
+++ b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.def
@@ -1,2 +1,2 @@
 language = Objective-C
-headers = library.h
+headers = kt63048.h
diff --git a/native/native.tests/testData/CInterop/executable/KT-63048/library.h b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.h
similarity index 100%
rename from native/native.tests/testData/CInterop/executable/KT-63048/library.h
rename to native/native.tests/testData/CInterop/executable/kt63048/kt63048.h
diff --git a/native/native.tests/testData/CInterop/executable/KT-63048/usage.kt b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.kt
similarity index 97%
rename from native/native.tests/testData/CInterop/executable/KT-63048/usage.kt
rename to native/native.tests/testData/CInterop/executable/kt63048/kt63048.kt
index 59593aba963..83822b1672b 100644
--- a/native/native.tests/testData/CInterop/executable/KT-63048/usage.kt
+++ b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.kt
@@ -1,6 +1,6 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class, kotlin.experimental.ExperimentalObjCName::class)
 
-import library.*
+import kt63048.*
 import kotlin.test.assertEquals
 
 @ObjCName("KotlinImplWithCompanionPropertyOverride")
diff --git a/native/native.tests/testData/CInterop/executable/KT-63048/library.m b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.m
similarity index 86%
rename from native/native.tests/testData/CInterop/executable/KT-63048/library.m
rename to native/native.tests/testData/CInterop/executable/kt63048/kt63048.m
index 1a7a6a46cf5..e29178a6202 100644
--- a/native/native.tests/testData/CInterop/executable/KT-63048/library.m
+++ b/native/native.tests/testData/CInterop/executable/kt63048/kt63048.m
@@ -1,4 +1,4 @@
-#import "library.h"
+#import "kt63048.h"
 
 @implementation WithClassProperty : NSObject
 -(instancetype) init {}
diff --git a/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.cpp b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.cpp
new file mode 100644
index 00000000000..f02e787ae99
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.cpp
@@ -0,0 +1,15 @@
+#include "leakMemoryWithRunningThreadUnchecked.h"
+
+#include <atomic>
+#include <thread>
+
+extern "C" void test_RunInNewThread(void (*f)()) {
+    std::atomic<bool> haveRun(false);
+    std::thread t([f, &haveRun]() {
+        f();
+        haveRun = true;
+        while (true) {}
+    });
+    t.detach();
+    while (!haveRun) {}
+}
diff --git a/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.def b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.def
new file mode 100644
index 00000000000..e5b0d0a250c
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.def
@@ -0,0 +1,5 @@
+package leakMemoryWithRunningThreadUnchecked
+
+---
+
+void test_RunInNewThread(void (*)());
diff --git a/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.h b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.h
new file mode 100644
index 00000000000..2342ed9c920
--- /dev/null
+++ b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.h
@@ -0,0 +1,9 @@
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void test_RunInNewThread(void (*)());
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/kotlin-native/backend.native/tests/interop/leakMemoryWithRunningThread/unchecked.kt b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.kt
similarity index 79%
rename from kotlin-native/backend.native/tests/interop/leakMemoryWithRunningThread/unchecked.kt
rename to native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.kt
index 480e1b94fb6..0b841788892 100644
--- a/kotlin-native/backend.native/tests/interop/leakMemoryWithRunningThread/unchecked.kt
+++ b/native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/leakMemoryWithRunningThreadUnchecked.kt
@@ -1,6 +1,10 @@
-@file:OptIn(kotlin.experimental.ExperimentalNativeApi::class, kotlin.native.runtime.NativeRuntimeApi::class)
+@file:OptIn(
+    kotlin.experimental.ExperimentalNativeApi::class,
+    kotlin.native.runtime.NativeRuntimeApi::class,
+    kotlinx.cinterop.ExperimentalForeignApi::class
+)
 
-import leakMemory.*
+import leakMemoryWithRunningThreadUnchecked.*
 import kotlin.concurrent.AtomicInt
 import kotlin.native.concurrent.*
 import kotlin.native.Platform
diff --git a/kotlin-native/backend.native/tests/interop/basics/ctoKString.def b/native/native.tests/testData/CInterop/executable/toKString/toKString.def
similarity index 100%
rename from kotlin-native/backend.native/tests/interop/basics/ctoKString.def
rename to native/native.tests/testData/CInterop/executable/toKString/toKString.def
diff --git a/kotlin-native/backend.native/tests/interop/basics/toKString.kt b/native/native.tests/testData/CInterop/executable/toKString/toKString.kt
similarity index 95%
rename from kotlin-native/backend.native/tests/interop/basics/toKString.kt
rename to native/native.tests/testData/CInterop/executable/toKString/toKString.kt
index c085b7d2d4b..083fbdc046f 100644
--- a/kotlin-native/backend.native/tests/interop/basics/toKString.kt
+++ b/native/native.tests/testData/CInterop/executable/toKString/toKString.kt
@@ -1,6 +1,6 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import ctoKString.*
+import toKString.*
 import kotlinx.cinterop.*
 import kotlin.native.*
 import kotlin.test.*
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/ClassicNativeCInteropExecutableTest.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/ClassicNativeCInteropExecutableTest.java
index c691cdc3acd..ee742fa1e54 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/ClassicNativeCInteropExecutableTest.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/ClassicNativeCInteropExecutableTest.java
@@ -25,8 +25,98 @@ public class ClassicNativeCInteropExecutableTest extends AbstractNativeCInteropE
     }
 
     @Test
-    @TestMetadata("KT-63048")
-    public void testKT_63048() throws Exception {
-        runTest("native/native.tests/testData/CInterop/executable/KT-63048/");
+    @TestMetadata("arrayPointers")
+    public void testArrayPointers() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/arrayPointers/");
+    }
+
+    @Test
+    @TestMetadata("auxiliarySources")
+    public void testAuxiliarySources() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/auxiliarySources/");
+    }
+
+    @Test
+    @TestMetadata("bitfields")
+    public void testBitfields() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/bitfields/");
+    }
+
+    @Test
+    @TestMetadata("callbacksAndVarargs")
+    public void testCallbacksAndVarargs() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/callbacksAndVarargs/");
+    }
+
+    @Test
+    @TestMetadata("enums")
+    public void testEnums() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/enums/");
+    }
+
+    @Test
+    @TestMetadata("forwardDeclarations")
+    public void testForwardDeclarations() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/forwardDeclarations/");
+    }
+
+    @Test
+    @TestMetadata("funptr")
+    public void testFunptr() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/funptr/");
+    }
+
+    @Test
+    @TestMetadata("globals")
+    public void testGlobals() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/globals/");
+    }
+
+    @Test
+    @TestMetadata("incompleteTypes")
+    public void testIncompleteTypes() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/incompleteTypes/");
+    }
+
+    @Test
+    @TestMetadata("kt43265")
+    public void testKt43265() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt43265/");
+    }
+
+    @Test
+    @TestMetadata("kt44283")
+    public void testKt44283() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt44283/");
+    }
+
+    @Test
+    @TestMetadata("kt54284")
+    public void testKt54284() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt54284/");
+    }
+
+    @Test
+    @TestMetadata("kt54284_fmodules")
+    public void testKt54284_fmodules() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt54284_fmodules/");
+    }
+
+    @Test
+    @TestMetadata("kt63048")
+    public void testKt63048() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt63048/");
+    }
+
+    @Test
+    @TestMetadata("leakMemoryWithRunningThreadUnchecked")
+    public void testLeakMemoryWithRunningThreadUnchecked() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/");
+    }
+
+    @Test
+    @TestMetadata("toKString")
+    public void testToKString() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/toKString/");
     }
 }
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCInteropExecutableTest.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCInteropExecutableTest.java
index 159d446577c..46c5eed6a0f 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCInteropExecutableTest.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCInteropExecutableTest.java
@@ -29,8 +29,98 @@ public class FirNativeCInteropExecutableTest extends AbstractNativeCInteropExecu
     }
 
     @Test
-    @TestMetadata("KT-63048")
-    public void testKT_63048() throws Exception {
-        runTest("native/native.tests/testData/CInterop/executable/KT-63048/");
+    @TestMetadata("arrayPointers")
+    public void testArrayPointers() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/arrayPointers/");
+    }
+
+    @Test
+    @TestMetadata("auxiliarySources")
+    public void testAuxiliarySources() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/auxiliarySources/");
+    }
+
+    @Test
+    @TestMetadata("bitfields")
+    public void testBitfields() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/bitfields/");
+    }
+
+    @Test
+    @TestMetadata("callbacksAndVarargs")
+    public void testCallbacksAndVarargs() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/callbacksAndVarargs/");
+    }
+
+    @Test
+    @TestMetadata("enums")
+    public void testEnums() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/enums/");
+    }
+
+    @Test
+    @TestMetadata("forwardDeclarations")
+    public void testForwardDeclarations() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/forwardDeclarations/");
+    }
+
+    @Test
+    @TestMetadata("funptr")
+    public void testFunptr() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/funptr/");
+    }
+
+    @Test
+    @TestMetadata("globals")
+    public void testGlobals() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/globals/");
+    }
+
+    @Test
+    @TestMetadata("incompleteTypes")
+    public void testIncompleteTypes() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/incompleteTypes/");
+    }
+
+    @Test
+    @TestMetadata("kt43265")
+    public void testKt43265() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt43265/");
+    }
+
+    @Test
+    @TestMetadata("kt44283")
+    public void testKt44283() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt44283/");
+    }
+
+    @Test
+    @TestMetadata("kt54284")
+    public void testKt54284() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt54284/");
+    }
+
+    @Test
+    @TestMetadata("kt54284_fmodules")
+    public void testKt54284_fmodules() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt54284_fmodules/");
+    }
+
+    @Test
+    @TestMetadata("kt63048")
+    public void testKt63048() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/kt63048/");
+    }
+
+    @Test
+    @TestMetadata("leakMemoryWithRunningThreadUnchecked")
+    public void testLeakMemoryWithRunningThreadUnchecked() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/leakMemoryWithRunningThreadUnchecked/");
+    }
+
+    @Test
+    @TestMetadata("toKString")
+    public void testToKString() throws Exception {
+        runTest("native/native.tests/testData/CInterop/executable/toKString/");
     }
 }
diff --git a/native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/AbstractNativeCInteropExecutableTest.kt b/native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/AbstractNativeCInteropExecutableTest.kt
index 231959e54a4..20e1855c6f3 100644
--- a/native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/AbstractNativeCInteropExecutableTest.kt
+++ b/native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/AbstractNativeCInteropExecutableTest.kt
@@ -20,24 +20,41 @@ import java.io.File
 abstract class AbstractNativeCInteropExecutableTest : AbstractNativeSimpleTest() {
 
     protected fun runTest(@TestDataFile testDataDir: String) {
-        val defFile = File(testDataDir, "library.def")
+        val testName = File(testDataDir).name
+        val defFile = File(testDataDir, "$testName.def")
         muteCInteropTestIfNecessary(defFile, targets.testTarget)
 
-        val mFile = File(testDataDir, "library.m")
-        val ktFile = File(testDataDir, "usage.kt")
+        val interopSourceFileM = File(testDataDir, "$testName.m")
+        val interopSourceFileCPP = File(testDataDir, "$testName.cpp")
+        val interopSourceFile = when {
+            interopSourceFileM.exists() -> interopSourceFileM
+            interopSourceFileCPP.exists() -> interopSourceFileCPP
+            else -> null
+        }
+        val ktFile = File(testDataDir, "$testName.kt")
 
+        val compilerArgs = buildList {
+            add("-compiler-option")
+            add("-I$testDataDir")
+            val auxHeader = File(testDataDir, "$testName.aux.h")
+            if (auxHeader.exists()) {
+                add("-header")
+                add(auxHeader.absolutePath)
+            }
+            interopSourceFile?.let {
+                add("-Xcompile-source")
+                add(it.absolutePath)
+                add("-Xsource-compiler-option")
+                add("-fobjc-arc")
+                add("-Xsource-compiler-option")
+                add("-DNS_FORMAT_ARGUMENT(A)=")
+            }
+        }
         val library = cinteropToLibrary(
             targets = targets,
             defFile = defFile,
             outputDir = buildDir,
-            freeCompilerArgs = TestCompilerArgs(
-                listOf(
-                    "-compiler-option", "-I$testDataDir",
-                    "-Xcompile-source", mFile.absolutePath,
-                    "-Xsource-compiler-option", "-fobjc-arc",
-                    "-Xsource-compiler-option", "-DNS_FORMAT_ARGUMENT(A)=",
-                )
-            )
+            freeCompilerArgs = TestCompilerArgs(compilerArgs)
         ).assertSuccess().resultingArtifact
 
         val testCase = generateTestCaseWithSingleFile(