Add cucumber tests for stack and watch window

Author: joonty

features/correct_window_setup.feature

@@ -0,0 +1,32 @@
+Feature: Correct window setup
+    In order to use Vdebug with all window panels
+    As a user
+    I want to see correct watch, stack and status information
+
+    Scenario: The watch window
+        Given I have a file example.php containing
+            """
+            <?php
+            $var1 = 1;
+            $var2 = array("hello", "world");
+            ?>
+            """
+        And I start the debugger with the PHP script example.php
+        When I step over
+        Then the watch window should show the variable $var1
+        And the watch window should show the variable $var2
+        And the watch window variable $var1 should be (int) 1
+        And the watch window variable $var2 should be (uninitialized)
+
+    Scenario: The stack window
+        Given I have a file example.php containing
+            """
+            <?php
+            $var1 = 1;
+            $var2 = array("hello", "world");
+            ?>
+            """
+        And I start the debugger with the PHP script example.php
+        When I step over
+        Then the first item on the stack should show the file example.php
+        And the first item on the stack should show line 3

features/step_definitions/stack_window_steps.rb

@@ -0,0 +1,7 @@
+Then "the first item on the stack should show the file $file" do |file|
+  vdebug.stack.first[:file].should include file
+end
+
+Then "the first item on the stack should show line $line" do |line|
+  vdebug.stack.first[:line].should == line
+end

features/step_definitions/watch_window_steps.rb

@@ -1,3 +1,7 @@
 Then "the watch window should show the variable $var" do |var|
   vdebug.watch_window_content.should include var
 end
+
+Then "the watch window variable $var should be $value" do |var, value|
+  vdebug.watch_vars[var].should == value
+end

rubylib/vdebug.rb

@@ -50,6 +50,33 @@ def watch_window_content
     fetch_buffer_content 'DebuggerWatch'
   end
 
+  def watch_vars
+    watch_lines = watch_window_content.split("\n")[4..-1]
+    Hash[watch_lines.join("").split('|').map { |v|
+      v[3..-1].split("=", 2).map(&:strip)
+    }]
+  end
+
+  def stack_window_content
+    fetch_buffer_content 'DebuggerStack'
+  end
+
+  def stack
+    stack_window_content.split("\n").map { |l|
+      s = {}
+      matches = /^\[(\d+)\] {([^}]+)} @ ([^:]+):(\d+)/.match(l)
+      if matches
+        s[:level] = matches[1]
+        s[:name] = matches[2]
+        s[:file] = matches[3]
+        s[:line] = matches[4]
+        s
+      else
+        raise "Invalid stack line: #{l}"
+      end
+    }
+  end
+
   def status_window_content
     fetch_buffer_content 'DebuggerStatus'
   end