expand test cases

app_test.go

@@ -885,32 +885,50 @@ func TestRequiredFlagAppRunBehavior(t *testing.T) {
 		appCommands     []Command
 		expectedAnError bool
 	}{
+		// expectations:
+		// 	- empty input, when a required flag is present, errors and shows the flag error message
 		{
-			// expectations:
-			// 	- empty input, when a required flag is present, shows the help message
-			// 	- empty input, when a required flag is present, errors and shows the flag error message
 			testCase:        "error_case_empty_input_with_required_flag",
 			appRunInput:     []string{"myCLI"},
 			appFlags:        []Flag{StringFlag{Name: "requiredFlag", Required: true}},
 			expectedAnError: true,
 		},
+		// expectations:
+		// 	- inputing --help, when a required flag is present, does not error
 		{
-			// expectations:
-			// 	- inputing --help, when a required flag is present, shows the help message
-			// 	- inputing --help, when a required flag is present, does not error
 			testCase:    "valid_case_help_input_with_required_flag",
 			appRunInput: []string{"myCLI", "--help"},
 			appFlags:    []Flag{StringFlag{Name: "requiredFlag", Required: true}},
 		},
 		{
-			// expectations:
-			// 	- giving optional input, when a required flag is present, shows the help message
-			// 	- giving optional input, when a required flag is present, errors and shows the flag error message
+			testCase:    "valid_case_help_input_with_required_flag_command",
+			appRunInput: []string{"myCLI", "myCommand", "--help"},
+			appCommands: []Command{Command{
+				Name:  "myCommand",
+				Flags: []Flag{StringFlag{Name: "requiredFlag", Required: true}},
+			}},
+		},
+		{
+			testCase:    "valid_case_help_input_with_required_flag_subcommand",
+			appRunInput: []string{"myCLI", "myCommand", "mySubCommand", "--help"},
+			appCommands: []Command{Command{
+				Name: "myCommand",
+				Subcommands: []Command{Command{
+					Name:  "mySubCommand",
+					Flags: []Flag{StringFlag{Name: "requiredFlag", Required: true}},
+				}},
+			}},
+		},
+		// expectations:
+		// 	- giving optional input, when a required flag is present, shows the help message
+		// 	- giving optional input, when a required flag is present, errors and shows the flag error message
+		{
 			testCase:        "error_case_optional_input_with_required_flag",
 			appRunInput:     []string{"myCLI", "--optional", "cats"},
 			appFlags:        []Flag{StringFlag{Name: "requiredFlag", Required: true}, StringFlag{Name: "optional"}},
 			expectedAnError: true,
 		},
+		// valid input cases
 		{
 			testCase:    "valid_case_required_flag_input",
 			appRunInput: []string{"myCLI", "--requiredFlag", "cats"},