add tests

src/ComputerBuild/Vhdl/Assign.php

@@ -2,19 +2,29 @@
 
 namespace ComputerBuild\Vhdl;
 
+use ComputerBuild\Vhdl\Symbol;
+
+/**
+ * Assigns
+ *
+ * @author Luis Cordova <cordoval@gmail.com>
+ */
 class Assign extends InlineStatement
 {
     protected $args;
 
-    public function __construct($args = null)
+    /**
+     * @param array $args | size should be 2 or 4
+     */
+    public function __construct(array $args)
     {
-        if (strlen($args) == 2) {
+        if (sizeof($args) == 2) {
             $this->target = $args[0];
             $this->expression = $args[1];
         } else {
             $this->target = $args[0]."(".$args[1].")";
-            $this->expression = $args[2]."(".$args[3].")";
-            $this->expression .= $this->expression->toSymbol();
+            $this->expression = $args[2]."(\"".$args[3]."\")";
+            $this->expression = new Symbol($this->expression);
         }
     }
 

src/ComputerBuild/Vhdl/SingleLineStatement.php

@@ -7,7 +7,7 @@
  *
  * @author Luis Cordova <cordoval@gmail.com>
  */
-class SingleLineStatement extends Statement
+abstract class SingleLineStatement extends Statement
 {
     public function generate($out, $indent)
     {

src/ComputerBuild/Vhdl/Symbol.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace ComputerBuild\Vhdl;
+
+/**
+ * Symbol
+ *
+ * @author Luis Cordova <cordoval@gmail.com>
+ */
+class Symbol
+{
+    protected $expression;
+
+    public function __construct($expression)
+    {
+        $this->expression = $expression;
+    }
+
+    public function __toString()
+    {
+        return $this->expression;
+    }
+}

src/ComputerBuild/Vhdl/Type.php

@@ -2,25 +2,25 @@
 
 namespace ComputerBuild\Vhdl;
 
+/**
+ * Class to render single line statement
+ *
+ * @author Luis Cordova <cordoval@gmail.com>
+ * @author Raul Rodriguez <raulrodriguez782@gmail.com>
+ */
 class Type extends SingleLineStatement
 {
     protected $name;
     protected $values;
 
-    public function __construct($name, $values)
+    public function __construct($name, array $values)
     {
         $this->name = $name;
         $this->values = $values;
     }
 
     public function line()
     {
-        $valuesSeparatedWithComas = "";
-        foreach ($this->values as $key => $value) {
-            $separator = $last ? ", " : "";
-            $valuesSeparatedWithComas .= $this->values[$key].$separator;
-        }
-
-        return "TYPE ".$this->name." IS ( ".$valuesSeparatedWithComas." );";
+        return "TYPE ".$this->name." IS (".implode(', ', $this->values).");";
     }
 }

src/Tests/ComputerBuild/Vhdl/AssignTest.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Tests\ComputerBuild\Vhdl;
+
+use ComputerBuild\Vhdl\Assign;
+
+class AssignTest extends \PHPUnit_Framework_TestCase
+{
+    public function testAssignTwoArgumentsShouldAssignFirstTargetSecondExpression()
+    {
+        // Assign(arg0, arg1)
+        // arg0 <= std_logic_vector("arg1")
+        $assignStatement = new Assign(array('output', '0101001'));
+        $this->assertEquals("output <= \"0101001\"", $assignStatement->generate());
+    }
+
+    public function testAssignFourArgumentsShouldSplitTwoAssignments()
+    {
+        // Assign(arg0, arg1, arg2, arg3)
+        // output(7 downto 0) <= std_logic_vector("00010001")
+        $assignStatement = new Assign(array('output', '7 downto 0', 'std_logic_vector', '00010001'));
+        $this->assertEquals("output(7 downto 0) <= std_logic_vector(\"00010001\")", $assignStatement->generate());
+    }
+
+}

src/Tests/ComputerBuild/Vhdl/TypeTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Tests\ComputerBuild\Vhdl;
+
+use ComputerBuild\Vhdl\Type;
+
+/**
+ * @author Luis Cordova <cordoval@gmail.com>
+ * @author Raul Rodriguez <raulrodriguez782@gmail.com>
+ */
+class TypeTest extends \PHPUnit_Framework_TestCase
+{
+    public function testTypeStatement()
+    {
+        $typeStatement = new Type('type_enum', array('a', 'b', 'c'));
+        $this->assertEquals('TYPE type_enum IS (a, b, c);', $typeStatement->line());
+    }
+}