Add testbench docs (#326)

Signed-off-by: Ruturaj Mohite <mohite.ruturaj15@gmail.com>

Author: gr455

docs/_sidebar.md

@@ -29,6 +29,7 @@
 * Chapter 7: Building Circuit Simulations within CircuitVerse
     * [CircuitVerse Design Process](/chapter7/1cvdesignprocess.md)
     * [Building Circuit Simulations within CircuitVerse Simulator](/chapter7/2buildwithcv.md)
+    * [Testing Circuits](/chapter7/3testcircuits.md)
 * Chapter 8: Support Resources
     * [Online Forums](/chapter8/1onlineforums.md)
     * [FAQ](/chapter8/2cvfaq.md)

docs/chapter7/3testcircuits.md

@@ -0,0 +1,48 @@
+# Testing CircuitVerse circuits
+
+The Testbench helps you test your circuits in the simulator itself
+
+### It's here in this corner
+
+![drawing](../images/img_chapter7/location.jpg)
+
+### Attach a test to a circuit
+Each circuit in a project can be attached a test, this test is saved along with your circuits. So the next time you load your circuit, the test loads with it.
+
+![drawing](../images/img_chapter7/click_attach.png)
+
+### Create the test using the test creator
+The test creator provides an intuitive UI to create tests.
+ - Select the type of test - `Sequential` or `Combinational`
+ - Add inputs / outputs by clicking the `+` icon next to `INPUTS` / `OUTPUTS` label.
+ - Add another test to the group by clicking `+` icon below
+ - Add another group by clicking `New Group`
+
+For sequential tests, clock is ticked between each Group. For combinational tests, Groups are just a logical seperation between different types of tests.
+
+Alternatively, you can also export the created test as CSV and edit it. You can import this CSV to attch by clicking `Import from CSV`
+
+Finally,
+ - Save and attach the test by clicking `Attach`
+
+![drawing](../images/img_chapter7/make_test.png)
+
+### Label your circuit elements
+The testbench uses the element labels to identify Input and Output elements. So make sure they are labelled the same as that in the tests.
+
+Click `Validate` to make sure you have added all elements properly
+
+![drawing](../images/img_chapter7/name_elements.png)
+
+### Ready to go!
+Click the arrows next to Group / Test number to scroll through and run tests
+
+![drawing](../images/img_chapter7/manual.png)
+
+Click `Run All` to run all the tests in an instant
+
+![drawing](../images/img_chapter7/runall.png)
+
+And get detailed results!
+
+![drawing](../images/img_chapter7/detailed.png)