Update __init__.py

Added personal coverage tool

src/_pytest/config/__init__.py

@@ -800,26 +800,38 @@ class PytestPluginManager(PluginManager):
 
     def consider_pluginarg(self, arg: str) -> None:
         """:meta private:"""
+        # Branch ID 1
         if arg.startswith("no:"): 
+            branchCoverage[0] = 1
             name = arg[3:]
+            # Branch ID 2
             if name in essential_plugins:
+                branchCoverage[1] = 1
                 print(f"UsageError: plugin {name} cannot be disabled")
 
             # PR #4304: remove stepwise if cacheprovider is blocked.
+            # Branch ID 3
             if name == "cacheprovider":
+                branchCoverage[2] = 1
                 self.set_blocked("stepwise")
                 self.set_blocked("pytest_stepwise")
 
             self.set_blocked(name)
+            # Branch ID 4
             if not name.startswith("pytest_"):
+                branchCoverage[3] = 1
                 self.set_blocked("pytest_" + name)
      
+        # Branch ID 5
         else:
+            branchCoverage[4] = 1
             name = arg
             # Unblock the plugin.
             self.unblock(name)
 
+            # Branch ID 6
             if not name.startswith("pytest_"):
+                branchCoverage[5] = 1
                 self.unblock("pytest_" + name)
             self.import_plugin(arg, consider_entry_points=True)
 
@@ -1979,3 +1991,42 @@ def apply_warning_filters(
 
     for arg in cmdline_filters:
         warnings.filterwarnings(*parse_warning_filter(arg, escape=True))
+
+branchCoverage = [0,0,0,0,0,0]
+i = 1
+for x in branchCoverage:
+    print("Branch " + str(i) + " was reached: "+ str(x))
+    i = i + 1
+
+# Cover branches 1,2,4
+print("Given input: no:mark")
+branchCoverage = [0,0,0,0,0,0]
+something = PytestPluginManager()
+something.consider_pluginarg("no:mark")
+
+i = 1
+for x in branchCoverage:
+    print("Branch " + str(i) + " was reached: "+ str(x))
+    i = i + 1
+
+print()
+
+# Cover branches 1,3,4
+print("Given input: no:cacheprovider")
+branchCoverage = [0,0,0,0,0,0]    
+something.consider_pluginarg("no:cacheprovider")
+i = 1
+for x in branchCoverage:
+    print("Branch " + str(i) + " was reached: "+ str(x))
+    i = i + 1
+
+print()
+
+# Cover branches 5,6
+print("Given input: mark")
+branchCoverage = [0,0,0,0,0,0]    
+something.consider_pluginarg("mark")
+i = 1
+for x in branchCoverage:
+    print("Branch " + str(i) + " was reached: "+ str(x))
+    i = i + 1