add more tests

core/discov/subscriber_test.go

@@ -72,12 +72,9 @@ func TestContainer(t *testing.T) {
 				{
 					act: actionDel,
 					key: "first",
-					val: "a",
 				},
 			},
-			expect: []string{
-				"b",
-			},
+			expect: []string{"b"},
 		},
 		{
 			name: "add two, delete two",
@@ -95,21 +92,83 @@ func TestContainer(t *testing.T) {
 				{
 					act: actionDel,
 					key: "first",
-					val: "a",
 				},
 				{
 					act: actionDel,
 					key: "second",
-					val: "b",
 				},
 			},
 			expect: []string{},
 		},
+		{
+			name: "add three, dup values, delete two",
+			do: []action{
+				{
+					act: actionAdd,
+					key: "first",
+					val: "a",
+				},
+				{
+					act: actionAdd,
+					key: "second",
+					val: "b",
+				},
+				{
+					act: actionAdd,
+					key: "third",
+					val: "a",
+				},
+				{
+					act: actionDel,
+					key: "first",
+				},
+				{
+					act: actionDel,
+					key: "second",
+				},
+			},
+			expect: []string{"a"},
+		},
+		{
+			name: "add three, dup values, delete two, delete not added",
+			do: []action{
+				{
+					act: actionAdd,
+					key: "first",
+					val: "a",
+				},
+				{
+					act: actionAdd,
+					key: "second",
+					val: "b",
+				},
+				{
+					act: actionAdd,
+					key: "third",
+					val: "a",
+				},
+				{
+					act: actionDel,
+					key: "first",
+				},
+				{
+					act: actionDel,
+					key: "second",
+				},
+				{
+					act: actionDel,
+					key: "forth",
+				},
+			},
+			expect: []string{"a"},
+		},
 	}
 
+	exclusives := []bool{true, false}
 	for _, test := range tests {
+		for _, exclusive := range exclusives {
 			t.Run(test.name, func(t *testing.T) {
-			c := newContainer(false)
+				c := newContainer(exclusive)
 				for _, order := range test.do {
 					if order.act == actionAdd {
 						c.OnAdd(internal.KV{
@@ -130,3 +189,4 @@ func TestContainer(t *testing.T) {
 			})
 		}
 	}
+}