diff --git a/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.exceptions.compiletime.txt b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.exceptions.compiletime.txt
new file mode 100644
index 00000000000..24cf2ea3528
--- /dev/null
+++ b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.exceptions.compiletime.txt
@@ -0,0 +1 @@
+java.lang.IllegalStateException: CANNOT_CHECK_FOR_ERASED: Cannot check for instance of erased type: A<Long> (16,18) in /2.1.kt
diff --git a/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.kt b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.kt
new file mode 100644
index 00000000000..bdfb68ba314
--- /dev/null
+++ b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.kt
@@ -0,0 +1,19 @@
+// WITH_RUNTIME
+
+/*
+ * KOTLIN CODEGEN BOX SPEC TEST (NEGATIVE)
+ *
+ * SPEC VERSION: 0.1-218
+ * PLACE: expressions, type-checking-and-containment-checking-expressions, type-checking-expression -> paragraph 1 -> sentence 2
+ * NUMBER: 1
+ * DESCRIPTION: E is T: The type T must be runtime-available, otherwise it is a compiler error
+ * EXCEPTION: compiletime
+ */
+
+fun box() {
+    val x = A(1)
+
+    val y = x is A<Long>
+}
+
+class A<T>(val a: T)
diff --git a/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos/1.1.kt b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos/1.1.kt
new file mode 100644
index 00000000000..a5225814d3e
--- /dev/null
+++ b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos/1.1.kt
@@ -0,0 +1,20 @@
+// WITH_RUNTIME
+
+/*
+ * KOTLIN CODEGEN BOX SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-218
+ * PLACE: expressions, type-checking-and-containment-checking-expressions, type-checking-expression -> paragraph 4 -> sentence 1
+ * NUMBER: 1
+ * DESCRIPTION: the expression null is T? for any type T always evaluates to true
+ */
+
+fun box(): String {
+    val x  = null
+    if (x is Any? && x is Nothing? && x is String? && x is A?)
+        if (!((x !is Any?) || (x !is Nothing?) || (x !is String?) || (x !is A?)))
+        return "OK"
+    return "NOK"
+}
+
+class A()
\ No newline at end of file
diff --git a/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json
index 90852765fa5..7e4839a8d57 100644
--- a/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json
+++ b/compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json
@@ -1,5 +1,15 @@
 {
   "1": {
+    "neg": {
+      "2": [
+        {
+          "specVersion": "0.1-218",
+          "casesNumber": 0,
+          "description": "E is T: The type T must be runtime-available, otherwise it is a compiler error",
+          "unexpectedBehaviour": false
+        }
+      ]
+    },
     "pos": {
       "3": [
         {
@@ -16,5 +26,17 @@
         }
       ]
     }
+  },
+  "4": {
+    "pos": {
+      "1": [
+        {
+          "specVersion": "0.1-218",
+          "casesNumber": 0,
+          "description": "the expression null is T? for any type T always evaluates to true",
+          "unexpectedBehaviour": false
+        }
+      ]
+    }
   }
 }
\ No newline at end of file
diff --git a/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos/1.1.kt b/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos/1.1.kt
new file mode 100644
index 00000000000..83bfd9f9c09
--- /dev/null
+++ b/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos/1.1.kt
@@ -0,0 +1,39 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -USELESS_IS_CHECK USELESS_NULLABLE_CHECK -UNUSED_VALUE -UNUSED_PARAMETER -UNREACHABLE_CODE -UNUSED_VARIABLE -USELESS_NULLABLE_CHECK
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-218
+ * PLACE: expressions, type-checking-and-containment-checking-expressions, type-checking-expression -> paragraph 3 -> sentence 1
+ * RELEVANT PLACES: expressions, type-checking-and-containment-checking-expressions, type-checking-expression -> paragraph 4 -> sentence 1
+ * NUMBER: 1
+ * DESCRIPTION: Type-checking expression always has type kotlin.Boolean.
+ * HELPERS: checkType
+ */
+
+// TESTCASE NUMBER: 1
+fun case1() {
+    val x = null is Nothing
+    x checkType { check<Boolean>() }
+}
+
+// TESTCASE NUMBER: 2
+fun case2() {
+    ("" !is String) checkType { check<Boolean>() }
+}
+
+// TESTCASE NUMBER: 3
+fun case3(n: Nothing) {
+    val x = n is Nothing
+    x checkType { check<Boolean>() }
+}
+
+// TESTCASE NUMBER: 4
+fun case4() {
+    val x = A() is Any?
+    x checkType { check<Boolean>() }
+}
+
+class A
\ No newline at end of file
diff --git a/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json b/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json
new file mode 100644
index 00000000000..d02ab56a8c0
--- /dev/null
+++ b/compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/testsMap.json
@@ -0,0 +1,27 @@
+{
+  "3": {
+    "pos": {
+      "1": [
+        {
+          "specVersion": "0.1-218",
+          "casesNumber": 4,
+          "description": "Type-checking expression always has type kotlin.Boolean.",
+          "unexpectedBehaviour": false
+        }
+      ]
+    }
+  },
+  "4": {
+    "pos": {
+      "1": [
+        {
+          "specVersion": "0.1-218",
+          "casesNumber": 4,
+          "description": "Type-checking expression always has type kotlin.Boolean.",
+          "path": "compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos/1.1.kt",
+          "unexpectedBehaviour": false
+        }
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/checkers/DiagnosticsTestSpecGenerated.java b/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/checkers/DiagnosticsTestSpecGenerated.java
index aa34d93979c..a05bd240856 100644
--- a/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/checkers/DiagnosticsTestSpecGenerated.java
+++ b/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/checkers/DiagnosticsTestSpecGenerated.java
@@ -2161,6 +2161,63 @@ public class DiagnosticsTestSpecGenerated extends AbstractDiagnosticsTestSpec {
                 }
             }
 
+            @TestMetadata("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions")
+            @TestDataPath("$PROJECT_ROOT")
+            @RunWith(JUnit3RunnerWithInners.class)
+            public static class Type_checking_and_containment_checking_expressions extends AbstractDiagnosticsTestSpec {
+                private void runTest(String testDataFilePath) throws Exception {
+                    KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                }
+
+                public void testAllFilesPresentInType_checking_and_containment_checking_expressions() throws Exception {
+                    KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions"), Pattern.compile("^(.+)\\.kt$"), true);
+                }
+
+                @TestMetadata("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression")
+                @TestDataPath("$PROJECT_ROOT")
+                @RunWith(JUnit3RunnerWithInners.class)
+                public static class Type_checking_expression extends AbstractDiagnosticsTestSpec {
+                    private void runTest(String testDataFilePath) throws Exception {
+                        KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                    }
+
+                    public void testAllFilesPresentInType_checking_expression() throws Exception {
+                        KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression"), Pattern.compile("^(.+)\\.kt$"), true);
+                    }
+
+                    @TestMetadata("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3")
+                    @TestDataPath("$PROJECT_ROOT")
+                    @RunWith(JUnit3RunnerWithInners.class)
+                    public static class P_3 extends AbstractDiagnosticsTestSpec {
+                        private void runTest(String testDataFilePath) throws Exception {
+                            KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                        }
+
+                        public void testAllFilesPresentInP_3() throws Exception {
+                            KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3"), Pattern.compile("^(.+)\\.kt$"), true);
+                        }
+
+                        @TestMetadata("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos")
+                        @TestDataPath("$PROJECT_ROOT")
+                        @RunWith(JUnit3RunnerWithInners.class)
+                        public static class Pos extends AbstractDiagnosticsTestSpec {
+                            private void runTest(String testDataFilePath) throws Exception {
+                                KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                            }
+
+                            @TestMetadata("1.1.kt")
+                            public void test1_1() throws Exception {
+                                runTest("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos/1.1.kt");
+                            }
+
+                            public void testAllFilesPresentInPos() throws Exception {
+                                KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/diagnostics/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-3/pos"), Pattern.compile("^(.+)\\.kt$"), true);
+                            }
+                        }
+                    }
+                }
+            }
+
             @TestMetadata("compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression")
             @TestDataPath("$PROJECT_ROOT")
             @RunWith(JUnit3RunnerWithInners.class)
diff --git a/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/codegen/BlackBoxCodegenTestSpecGenerated.java b/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/codegen/BlackBoxCodegenTestSpecGenerated.java
index 14a8e3ff0d3..e5a4aa26f8a 100644
--- a/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/codegen/BlackBoxCodegenTestSpecGenerated.java
+++ b/compiler/tests-spec/tests/org/jetbrains/kotlin/spec/codegen/BlackBoxCodegenTestSpecGenerated.java
@@ -1738,6 +1738,24 @@ public class BlackBoxCodegenTestSpecGenerated extends AbstractBlackBoxCodegenTes
                             KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1"), Pattern.compile("^(.+)\\.kt$"), true);
                         }
 
+                        @TestMetadata("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg")
+                        @TestDataPath("$PROJECT_ROOT")
+                        @RunWith(JUnit3RunnerWithInners.class)
+                        public static class Neg extends AbstractBlackBoxCodegenTestSpec {
+                            private void runTest(String testDataFilePath) throws Exception {
+                                KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                            }
+
+                            @TestMetadata("2.1.kt")
+                            public void test2_1() throws Exception {
+                                runTest("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg/2.1.kt");
+                            }
+
+                            public void testAllFilesPresentInNeg() throws Exception {
+                                KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/neg"), Pattern.compile("^(.+)\\.kt$"), true);
+                            }
+                        }
+
                         @TestMetadata("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-1/pos")
                         @TestDataPath("$PROJECT_ROOT")
                         @RunWith(JUnit3RunnerWithInners.class)
@@ -1761,6 +1779,37 @@ public class BlackBoxCodegenTestSpecGenerated extends AbstractBlackBoxCodegenTes
                             }
                         }
                     }
+
+                    @TestMetadata("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4")
+                    @TestDataPath("$PROJECT_ROOT")
+                    @RunWith(JUnit3RunnerWithInners.class)
+                    public static class P_4 extends AbstractBlackBoxCodegenTestSpec {
+                        private void runTest(String testDataFilePath) throws Exception {
+                            KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                        }
+
+                        public void testAllFilesPresentInP_4() throws Exception {
+                            KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4"), Pattern.compile("^(.+)\\.kt$"), true);
+                        }
+
+                        @TestMetadata("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos")
+                        @TestDataPath("$PROJECT_ROOT")
+                        @RunWith(JUnit3RunnerWithInners.class)
+                        public static class Pos extends AbstractBlackBoxCodegenTestSpec {
+                            private void runTest(String testDataFilePath) throws Exception {
+                                KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+                            }
+
+                            @TestMetadata("1.1.kt")
+                            public void test1_1() throws Exception {
+                                runTest("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos/1.1.kt");
+                            }
+
+                            public void testAllFilesPresentInPos() throws Exception {
+                                KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/tests-spec/testData/codegen/box/linked/expressions/type-checking-and-containment-checking-expressions/type-checking-expression/p-4/pos"), Pattern.compile("^(.+)\\.kt$"), true);
+                            }
+                        }
+                    }
                 }
             }