diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/FatFrameworkIT.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/FatFrameworkIT.kt
new file mode 100644
index 00000000000..d5594146125
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/FatFrameworkIT.kt
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2010-2019 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.
+ */
+
+package org.jetbrains.kotlin.gradle
+
+import org.jetbrains.kotlin.gradle.util.modify
+import org.jetbrains.kotlin.gradle.util.runProcess
+import org.junit.Test
+import kotlin.test.assertTrue
+
+class FatFrameworkIT : BaseGradleIT() {
+
+    @Test
+    fun smoke() = with(transformProjectWithPluginsDsl("smoke", directoryPrefix = "new-mpp-fat-framework")) {
+        build("fat") {
+            assertSuccessful()
+            val archs = listOf("x64", "arm64", "arm32")
+            val linkTasks = archs.map { ":linkDebugFrameworkIos${it.capitalize()}" }
+
+            assertTasksExecuted(linkTasks)
+            assertTasksExecuted(":fat")
+
+            assertFileExists("build/fat-framework/smoke.framework/smoke")
+            assertFileExists("build/fat-framework/smoke.framework/Headers/smoke.h")
+            assertFileExists("build/fat-framework/smoke.framework.dSYM/Contents/Resources/DWARF/smoke")
+
+            val headerContent = fileInWorkingDir("build/fat-framework/smoke.framework/Headers/smoke.h").readText()
+            assertTrue(
+                headerContent.contains("+ (int32_t)foo __attribute__((swift_name(\"foo()\")));"),
+                "Unexpected header content:\n$headerContent"
+            )
+
+            val plistContent = fileInWorkingDir("build/fat-framework/smoke.framework/Info.plist")
+                .readLines()
+                .joinToString(separator = "\n") { it.trim() }
+
+            assertTrue(
+                plistContent.contains(
+                    """
+                        <key>CFBundleSupportedPlatforms</key>
+                        <array>
+                        <string>iPhoneOS</string>
+                        </array>
+                    """.trimIndent()
+                ),
+                "Unexpected Info.plist content:\n$plistContent"
+            )
+
+            val binary = fileInWorkingDir("build/fat-framework/smoke.framework/smoke")
+            with(runProcess(listOf("file", binary.absolutePath), projectDir)) {
+                assertTrue(isSuccessful)
+                assertTrue(output.contains("\\(for architecture x86_64\\):\\s+Mach-O 64-bit dynamically linked shared library x86_64".toRegex()))
+                assertTrue(output.contains("\\(for architecture armv7\\):\\s+Mach-O dynamically linked shared library arm_v7".toRegex()))
+                assertTrue(output.contains("\\(for architecture arm64\\):\\s+Mach-O 64-bit dynamically linked shared library arm64".toRegex()))
+            }
+        }
+    }
+
+    @Test
+    fun testDuplicatedArchitecture()= with(
+        transformProjectWithPluginsDsl("smoke", directoryPrefix = "new-mpp-fat-framework")
+    ) {
+        gradleBuildScript().modify {
+            it + """
+                val anotherDeviceTarget = kotlin.iosArm64("another") {
+                    binaries.framework("DEBUG")
+                }
+                fat.from(anotherDeviceTarget.binaries.getFramework("DEBUG"))
+            """.trimIndent()
+        }
+        build("fat") {
+            assertFailed()
+            assertContains("This fat framework already has a binary for architecture `arm64`")
+        }
+    }
+
+    @Test
+    fun testIncorrectTarget() = with(
+        transformProjectWithPluginsDsl("smoke", directoryPrefix = "new-mpp-fat-framework")
+    ) {
+        gradleBuildScript().modify {
+            it + """
+                val macos = kotlin.macosX64 {
+                    binaries.framework("DEBUG")
+                }
+                fat.from(macos.binaries.getFramework("DEBUG"))
+            """.trimIndent()
+        }
+        build("fat") {
+            assertFailed()
+            assertContains("Cannot add a framework with target 'macos_x64' to the fat framework")
+        }
+    }
+
+}
+
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/build.gradle.kts b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/build.gradle.kts
new file mode 100644
index 00000000000..b87348f9942
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/build.gradle.kts
@@ -0,0 +1,35 @@
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
+import org.jetbrains.kotlin.gradle.tasks.FatFrameworkTask
+
+plugins {
+    id("org.jetbrains.kotlin.multiplatform").version("<pluginMarkerVersion>")
+}
+
+repositories {
+    mavenLocal()
+    jcenter()
+    maven { setUrl("https://dl.bintray.com/kotlin/kotlin-dev") }
+}
+
+kotlin {
+    sourceSets["commonMain"].dependencies {
+        implementation(kotlin("stdlib-common"))
+    }
+
+    iosArm32()
+    iosArm64()
+    iosX64()
+
+    targets.withType(KotlinNativeTarget::class.java) {
+        binaries.framework(listOf(DEBUG))
+    }
+
+}
+
+val frameworksToMerge = kotlin.targets
+    .withType(KotlinNativeTarget::class.java)
+    .map { it.binaries.getFramework("DEBUG") }
+
+val fat = tasks.create("fat", FatFrameworkTask::class.java) {
+    from(frameworksToMerge)
+}
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/settings.gradle b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/settings.gradle
new file mode 100644
index 00000000000..e2ce47a7256
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/settings.gradle
@@ -0,0 +1,7 @@
+pluginManagement {
+    repositories {
+        mavenLocal()
+        jcenter()
+        gradlePluginPortal()
+    }
+}
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/src/commonMain/kotlin/main.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/src/commonMain/kotlin/main.kt
new file mode 100644
index 00000000000..5730b06eda6
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-fat-framework/smoke/src/commonMain/kotlin/main.kt
@@ -0,0 +1 @@
+fun foo(): Int = 42
\ No newline at end of file