RedundantStringOperation: append("") (IDEA-180178), intern()

ConstantStringInternInspection removed

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/afterStringBuilderAppendCleanUp.java

@@ -0,0 +1,8 @@
+// "Fix all 'Redundant String operation' problems in file" "true"
+class Foo {
+  public static void main(String[] args) {
+    StringBuilder sb = new StringBuilder();
+      sb = new StringBuilder();
+      sb.append("x");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/afterStringBuilderAppendEmpty.java

@@ -0,0 +1,7 @@
+// "Remove redundant 'append' call" "true"
+class Foo {
+  public static void main(String[] args) {
+    StringBuilder sb = new StringBuilder();
+    sb.append("foo").append("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/afterStringIntern.java

@@ -0,0 +1,4 @@
+// "Remove redundant 'intern' call" "true"
+class Foo {
+  private static final String x = ("Hello "+"World"+'!');
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/afterStringToString.java

@@ -1,4 +1,4 @@
-// "Remove 'toString'" "true"
+// "Remove redundant 'toString' call" "true"
 class Foo {
   public static void main(String[] args) {
       /*valuable comment!!!*/

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeObjectToString.java

@@ -1,4 +1,4 @@
-// "Remove 'toString'" "false"
+// "Remove redundant 'toString' call" "false"
 class Foo {
   public static void main(String[] args) {
     Object[] a = args;

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeStringBuilderAppendCleanUp.java

@@ -0,0 +1,9 @@
+// "Fix all 'Redundant String operation' problems in file" "true"
+class Foo {
+  public static void main(String[] args) {
+    StringBuilder sb = new StringBuilder();
+    sb.appe<caret>nd("");
+    (sb = new StringBuilder()).append("");
+    (sb.append("x")).append("");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeStringBuilderAppendEmpty.java

@@ -0,0 +1,7 @@
+// "Remove redundant 'append' call" "true"
+class Foo {
+  public static void main(String[] args) {
+    StringBuilder sb = new StringBuilder();
+    sb.append("foo").ap<caret>pend(("")).append("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeStringIntern.java

@@ -0,0 +1,4 @@
+// "Remove redundant 'intern' call" "true"
+class Foo {
+  private static final String x = ("Hello "+"World"+'!').inte<caret>rn();
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeStringInternNonConst.java

@@ -0,0 +1,4 @@
+// "Remove redundant 'intern' call" "false"
+class Foo {
+  private static final String x = ("Hello "+"World".trim()+'!').inte<caret>rn();
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantStringOperation/beforeStringToString.java

@@ -1,4 +1,4 @@
-// "Remove 'toString'" "true"
+// "Remove redundant 'toString' call" "true"
 class Foo {
   public static void main(String[] args) {
     String s = args[0].toString<caret>(/*valuable comment!!!*/);