parse arg test

plan/command/command_test.go

@@ -69,6 +69,36 @@ func TestParseArgs(t *testing.T) {
 				Flags: map[string]string{},
 			},
 		},
+		{
+			name: "just main",
+			args: []string{"one", "two three", "four"},
+			expAS: &command.ArgSet{
+				Main:  "one two three four",
+				Flags: map[string]string{},
+			},
+		},
+		{
+			name: "with flags",
+			args: []string{"-flag1", "value1", "one", "two", "-flag2", "value2", "-flag3", "value3"},
+			expAS: &command.ArgSet{
+				Main: "one two",
+				Flags: map[string]string{
+					"flag1": "value1",
+					"flag2": "value2",
+					"flag3": "value3",
+				},
+			},
+		},
+		{
+			name:   "flag without value",
+			args:   []string{"one", "two", "-flag1"},
+			expErr: true,
+		},
+		{
+			name:   "split main",
+			args:   []string{"one", "-flag1", "value1", "two"},
+			expErr: true,
+		},
 	} {
 		t.Run(tc.name, func(t *testing.T) {
 			actAS, actErr := command.ParseArgs(tc.args)