Issue #2161: unify test input locations for checks package

1 files changed, 222 insertions, 0 deletions

diff --git a/src/test/resources/com/puppycrawl/tools/checkstyle/checks/InputSemantic.java b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/InputSemantic.java
new file mode 100644
index 000000000..978963767
--- /dev/null
+++ b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/InputSemantic.java
@@ -0,0 +1,222 @@
+////////////////////////////////////////////////////////////////////////////////
+// Test case file for checkstyle.
+// Created: 2001
+////////////////////////////////////////////////////////////////////////////////
+package com.puppycrawl.tools.checkstyle.checks;
+
+import java.io.*; // star import for instantiation tests
+import java.awt.Dimension; // explicit import for instantiation tests
+import java.awt.Color;
+
+/**
+ * Test case for detecting simple semantic errors.
+ * @author Lars Kühne
+ **/
+class InputSemantic
+{
+    /* Boolean instantiation in a static initializer */
+    static {
+        Boolean x = new Boolean(true);
+    }
+
+    /* Boolean instantiation in a non-static initializer */
+    {
+        Boolean x = new Boolean(true);
+        Boolean[] y = new Boolean[]{Boolean.TRUE, Boolean.FALSE};
+    }
+
+    /** fully qualified Boolean instantiation in a method. **/
+    Boolean getBoolean()
+    {
+        return new java.lang.Boolean(true);
+    }
+
+    void otherInstantiations()
+    {
+        // instantiation of classes in the same package
+        Object o1 = new InputBraces();
+        Object o2 = new InputModifier();
+        // classes in another package with .* import
+        ByteArrayOutputStream s = new ByteArrayOutputStream();
+        File f = new File("/tmp");
+        // classes in another package with explicit import
+        Dimension dim = new Dimension();
+        Color col = new Color(0, 0, 0);
+    }
+
+    void exHandlerTest()
+    {
+        try {
+            ; // do stuff and don't handle exceptions in some cases
+        }
+        catch (IllegalStateException emptyCatchIsAlwaysAnError) {
+        }
+        catch (NullPointerException ex) {
+            // can never happen, but only commentig this is currently an error
+            // Possible future enhancement: allowEmptyCatch="commented"
+        }
+        catch (ArrayIndexOutOfBoundsException ex) {
+            ;
+            // can never happen, semicolon makes checkstyle happy
+            // this is a workaround for above problem
+        }
+        catch (NegativeArraySizeException ex) {
+            {
+            }
+            // can never happen, empty compound statement is another workaround
+        }
+        catch (UnsupportedOperationException handledException) {
+            System.out.println(handledException.getMessage());
+        }
+        catch (SecurityException ex) { /* hello */ }
+        catch (StringIndexOutOfBoundsException ex) {}
+        catch (IllegalArgumentException ex) { }
+
+        try {
+        }
+        finally {
+        }
+        try {
+        // something
+        }
+        finally {
+            // something
+        }
+        try {
+            ; // something
+        }
+        finally {
+            ; // statement
+        }
+    }
+
+    /** test **/
+    private static final long IGNORE = 666l + 666L;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    public class EqualsVsHashCode1
+    {
+        public boolean equals(int a) // wrong arg type, don't flag
+        {
+            return a == 1;
+        }
+    }
+
+    public class EqualsVsHashCode2
+    {
+        public boolean equals(String a) // flag
+        {
+            return true;
+        }
+    }
+
+    public class EqualsVsHashCode3
+    {
+        public boolean equals(Object a) // don't flag
+        {
+            return true;
+        }
+
+        public int hashCode()
+        {
+            return 0;
+        }
+    }
+
+    public class EqualsVsHashCode4
+    {
+        // in anon inner class
+        ByteArrayOutputStream bos1 = new ByteArrayOutputStream()
+        {
+            public boolean equals(Object a) // don't flag
+            {
+                return true;
+            }
+
+            public int hashCode()
+            {
+                return 0;
+            }
+        };
+
+        ByteArrayOutputStream bos2 = new ByteArrayOutputStream()
+        {
+            public boolean equals(Object a) // flag
+            {
+                return true;
+            }
+        };
+    }
+
+    public void triggerEmptyBlockWithoutBlock()
+    {
+        // an if statement without a block to increase test coverage
+        if (true)
+            return;
+    }
+    
+    // empty instance initializer
+    {
+    }
+
+    public class EqualsVsHashCode5
+    {
+        public <A> boolean equals(int a) // wrong arg type, don't flag even with generics
+        {
+            return a == 1;
+        }
+    }
+
+    public class EqualsVsHashCode6
+    {
+        public <A> boolean equals(Comparable<A> a) // flag, weven with generics
+        {
+            return true;
+        }
+    }
+    
+    private class InputBraces {
+        
+    }
+    
+    private class InputModifier {
+        
+    }
+
+    synchronized void foo() {
+        synchronized (this) {} // not OK
+        synchronized (Class.class) { // OK
+            synchronized (new Object()) {
+                // not OK if checking statements
+            }
+        }
+    }
+    
+    
+    static {
+       
+    int a = 0;}
+    
+    static {
+        
+    }
+}