diff --git a/api/chrome/features/chrome.feature b/api/chrome/features/chrome.feature
index a57207e..fe2d27e 100644
--- a/api/chrome/features/chrome.feature
+++ b/api/chrome/features/chrome.feature
@@ -3,15 +3,28 @@ Feature: The Chrome API client
     Scenario: Using the Chrome.start method
         Given the Chrome client
         When the start method is called
-        Then Google Chrome should open
+        Then Google Chrome must open
     
     Scenario: Using the Chrome.start_headless method
         Given the Chrome client
         When the start_headless method is called
-        Then Google Chrome should open headless
+        Then Google Chrome must open headless
 
     Scenario: Using the Chrome.stop method
         Given the Chrome client
         And a Chrome instance
         When the stop method is called upon it
-        Then this Google Chrome instance should close
\ No newline at end of file
+        Then this Google Chrome instance must close
+    
+    Scenario: Using the Chrome.new method
+        Given the Chrome client
+        And a Chrome instance
+        When the new method is called
+        Then a new Google Chrome tab with the url given must open in the instance
+    
+    Scenario: Using the Chrome.close method
+        Given the Chrome client
+        And a Chrome instance
+        And the id of a new Google Chrome tab opened
+        When the close method is called upon the tab id
+        Then the tab must close
\ No newline at end of file
diff --git a/api/chrome/features/steps/steps.py b/api/chrome/features/steps/steps.py
index 6710a06..6d485e6 100644
--- a/api/chrome/features/steps/steps.py
+++ b/api/chrome/features/steps/steps.py
@@ -10,7 +10,7 @@ def step_impl (context):
 def step_impl (context):
     context.start_return = context.client.start()
 
-@then ("Google Chrome should open")
+@then ("Google Chrome must open")
 def step_impl (context):
     assert context.start_return == "", "Google Chrome did not opened as expected."
     context.client.stop()
@@ -21,7 +21,7 @@ def step_impl (context):
 def step_impl (context):
     context.start_headless_return = context.client.start_headless()
 
-@then ("Google Chrome should open headless")
+@then ("Google Chrome must open headless")
 def step_impl (context):
     assert context.start_headless_return == "", "Google Chrome did not opened as expected."
     context.client.stop()
@@ -36,9 +36,33 @@ def step_impl (context):
 def step_impl (context):
     context.stop_return = context.client.stop()
 
-@then ("this Google Chrome instance should close")
+@then ("this Google Chrome instance must close")
 def step_impl (context):
     assert context.stop_return == "", "Google Chrome did not closed as expected."
 
 
-# ========================== Chrome.new () ==========================
\ No newline at end of file
+# ========================== Chrome.new () ==========================
+@when("the new method is called")
+def step_impl(context):
+    context.tab_id = context.client.new("https://www.youtube.com")
+
+@then ("a new Google Chrome tab with the url given must open in the instance")
+def step_impl(context):
+    assert len(context.tab_id) == 32, "The new Google Chrome tab did not opened correctly."
+    context.client.stop()
+
+
+# ========================== Chrome.close () ==========================
+@given ("the id of a new Google Chrome tab opened")
+def step_impl(context):
+    context.tab_id1 = context.client.new("https://www.gmail.com")
+    context.tab_id2 = context.client.new("https://www.youtube.com")
+
+@when ("the close method is called upon the tab id")
+def step_impl(context):
+    context.close_return = context.client.close(context.tab_id1)
+
+@then("the tab must close")
+def step_impl(context):
+    assert context.close_return == "", "The tab did not closed correctly."
+    context.client.stop()