From fa15554ff30921ed6e1d4959f3937ca4a0f1756f Mon Sep 17 00:00:00 2001
From: Jason Axelson <jason.axelson@gmail.com>
Date: Fri, 4 Oct 2019 07:49:14 -1000
Subject: [PATCH] Clear the screen before each test run

---
 History.md                | 1 +
 README.md                 | 9 +++++++++
 config/config.exs         | 3 ++-
 lib/cortex/test_runner.ex | 4 ++++
 4 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/History.md b/History.md
index 426c883..e77e64c 100644
--- a/History.md
+++ b/History.md
@@ -2,6 +2,7 @@ Unreleased
 ==========
 
   * feat: File throttling to prevent files being compiled multiple times in quick succession and tests being run multiple times due to one "change".
+  * feat: by default clear the screen before each test run (configurable with `clear_before_running_tests`)
 
 0.5.0 / 2018-05-01
 ==================
diff --git a/README.md b/README.md
index dc75a0f..c4f6cb5 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,15 @@ config :cortex,
   disabled: {:system, "CI_RUN", false}
 ```
 
+## Configuring
+
+```ex
+config :cortex,
+  clear_before_running_tests: true
+```
+
+Set `clear_before_running_tests` to clear the screen immediately before running tests, defaults to true.
+
 ## Phoenix
 
 If you are running a phoenix application,
diff --git a/config/config.exs b/config/config.exs
index 7ecf341..5333cad 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -30,4 +30,5 @@ use Mix.Config
 #     import_config "#{Mix.env}.exs"
 config :cortex,
   enabled: {:system, "CORTEX_ENABLED", true},
-  disabled: {:system, "CORTEX_DISABLED", false}
+  disabled: {:system, "CORTEX_DISABLED", false},
+  clear_before_running_tests: true
diff --git a/lib/cortex/test_runner.ex b/lib/cortex/test_runner.ex
index aa372b9..f525051 100644
--- a/lib/cortex/test_runner.ex
+++ b/lib/cortex/test_runner.ex
@@ -144,6 +144,10 @@ defmodule Cortex.TestRunner do
     # present
     if focus == nil, do: clear_focus()
 
+    if Application.get_env(:cortex, :clear_before_running_tests, true) do
+      IEx.Helpers.clear()
+    end
+
     files_to_load = [test_helper | files]
 
     compiler_errors =