Fix EvaluateTests for strings

compiler/frontend/src/org/jetbrains/jet/lang/evaluate/ConstantExpressionEvaluator.kt

@@ -517,7 +517,8 @@ private fun createStringConstant(value: CompileTimeConstant<*>?): StringValue? {
         is IntValue, is ByteValue, is ShortValue, is LongValue,
         is CharValue,
         is DoubleValue, is FloatValue,
-        is BooleanValue -> StringValue(value.getValue().toString())
+        is BooleanValue,
+        is NullValue -> StringValue(value.getValue().toString())
         else -> null
     }
 }

compiler/testData/evaluate/constant/strings.kt

@@ -4,29 +4,29 @@ enum class MyEnum {
     A
 }
 
-// val prop1: "2"
+// val prop1: \"2\"
 val prop1 = "${1 + 1}"
 
 // val prop2: null
 val prop2 = "myEnum=${MyEnum.A}"
 
-// val prop3: "1"
+// val prop3: \"1\"
 val prop3 = "${1}"
 
-// val prop4: null
+// val prop4: \"null\"
 val prop4 = "${null}"
 
-// val prop5: "1.0"
+// val prop5: \"1.0\"
 val prop5 = "${1.toFloat()}"
 
-// val prop6: "1.0"
+// val prop6: \"1.0\"
 val prop6 = "${1.0}"
 
 // val prop7: null
 val prop7 = "${javaClass<Int>()}"
 
-// val prop8: "a1.0"
+// val prop8: \"a1.0\"
 val prop8 = "a${1.toDouble()}"
 
-// val prop9: "ab"
+// val prop9: \"ab\"
 val prop9 = "a" + "b"

compiler/tests/org/jetbrains/jet/evaluate/AbstractEvaluateExpressionTest.kt

@@ -31,6 +31,7 @@ import com.intellij.openapi.util.text.StringUtil
 import org.jetbrains.jet.JetTestUtils
 import org.jetbrains.jet.util.slicedmap.WritableSlice
 import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstant
+import org.jetbrains.jet.lang.resolve.constants.StringValue
 
 abstract class AbstractEvaluateExpressionTest: AbstractAnnotationDescriptorResolveTest() {
 
@@ -39,7 +40,12 @@ abstract class AbstractEvaluateExpressionTest: AbstractAnnotationDescriptorResol
         doTest(path) {
             property, context ->
             val compileTimeConstant = context.get(BindingContext.COMPILE_TIME_VALUE, property.getInitializer())
-            compileTimeConstant.toString()
+            if (compileTimeConstant is StringValue) {
+                "\\\"${compileTimeConstant.getValue()}\\\""
+            }
+            else {
+                compileTimeConstant.toString()
+            }
         }
     }
 
@@ -59,22 +65,23 @@ abstract class AbstractEvaluateExpressionTest: AbstractAnnotationDescriptorResol
 
         val propertiesForTest = getObjectsToTest(fileText)
 
-        val expectedActual = hashMapOf<String, String>()
+        val expectedActual = arrayListOf<Pair<String, String>>()
 
         for (propertyName in propertiesForTest) {
-            val expectedProperyPrefix = "// val ${propertyName}: "
-            val expected = InTextDirectivesUtils.findStringWithPrefixes(fileText, expectedProperyPrefix)
-            assertNotNull(expected, "Failed to find expected directive: $expectedProperyPrefix")
+            val expectedPropertyPrefix = "// val ${propertyName}: "
+            val expected = InTextDirectivesUtils.findStringWithPrefixes(fileText, expectedPropertyPrefix)
+            assertNotNull(expected, "Failed to find expected directive: $expectedPropertyPrefix")
 
             val property = AbstractAnnotationDescriptorResolveTest.getPropertyDescriptor(packageView, propertyName)
             val jetProperty = BindingContextUtils.descriptorToDeclaration(context!!, property) as JetProperty
 
             val testedObject = getValueToTest(jetProperty, context!!)
-            expectedActual[expectedProperyPrefix + expected!!] = expectedProperyPrefix + StringUtil.unquoteString(testedObject)
+            expectedActual.add(expectedPropertyPrefix + expected!! to expectedPropertyPrefix + testedObject)
         }
 
         var actualFileText = fileText
         for ((expected, actual) in expectedActual) {
+            assert(actualFileText.contains(expected), "File text should contains $expected")
             actualFileText = actualFileText.replace(expected, actual)
         }