[Spec tests] Add tests for elvis-expression

2019-12-23 12:41:17 +03:00
parent 479fa0e7b8
commit 84cf4c5049
6 changed files with 200 additions and 0 deletions
@@ -0,0 +1,43 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNREACHABLE_CODE -UNUSED_VARIABLE -ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE -UNUSED_VALUE -UNUSED_PARAMETER -UNUSED_EXPRESSION
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-218
+ * PLACE: expressions, elvis-operator-expression -> paragraph 3 -> sentence 1
+ * NUMBER: 1
+ * DESCRIPTION: The type of elvis operator expression is the least upper bound of the non-nullable variant of the type of the left-hand side expression and the type of the right-hand side expression.
+ * HELPERS: checkType
+ */
+
+
+// TESTCASE NUMBER: 1
+fun case1() {
+    val x = null ?: getNull()
+    <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Boolean?")!>x<!>
+}
+
+fun getNull(): Boolean? = null
+
+
+// TESTCASE NUMBER: 2
+fun case2() {
+    val x = A(mutableSetOf({ false }, { println("") })).b ?: false
+    <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any")!>x<!>
+}
+
+class A(val b: Set<Any>? = null)
+
+// TESTCASE NUMBER: 3
+fun case3() {
+    val x = null?: throw Exception()
+    <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Nothing")!>x<!>
+}
+
+// TESTCASE NUMBER: 4
+fun case4() {
+    val x = null <!USELESS_ELVIS_RIGHT_IS_NULL!>?: null<!>
+    <!DEBUG_INFO_CONSTANT, DEBUG_INFO_EXPRESSION_TYPE("kotlin.Nothing?")!>x<!>
+}
@@ -0,0 +1,14 @@
+{
+  "3": {
+    "pos": {
+      "1": [
+        {
+          "specVersion": "0.1-218",
+          "casesNumber": 4,
+          "description": "The type of elvis operator expression is the least upper bound of the non-nullable variant of the type of the left-hand side expression and the type of the right-hand side expression.",
+          "unexpectedBehaviour": false
+        }
+      ]
+    }
+  }
+}