test: removePlayerFromTeam extended tests

src/test/java/cz/muni/fi/pa165/icehockeymanager/services/TeamServiceImplTest.java

@@ -93,6 +93,47 @@ class TeamServiceImplTest {
         );
     }
 
+    @Test
+    public void removePlayerFromTeam() {
+        Team team = buildTeam("Florida Panthers");
+        var players = buildPlayers();
+        Player player = buildPlayer(3L, "Miroslav Satan");
+        var expected = new HashSet<>(players);
+        players.add(player);
+        team.setPlayers(players);
+        teamService.removePlayerFromTeam(team, player);
+        assertThat(team.getPlayers()).hasSameElementsAs(expected);
+        verify(teamDao).update(team);
+    }
+
+    @Test
+    public void removePlayerFromTeamPlayerIsNotInTeam() {
+        Team team = buildTeam("Florida Panthers");
+        var players = buildPlayers();
+        Player player = buildPlayer(3L, "Miroslav Satan");
+        team.setPlayers(players);
+        assertThatExceptionOfType(PlayerNotInTeamException.class).isThrownBy(
+                () -> teamService.removePlayerFromTeam(team, player)
+        );
+        assertThat(team.getPlayers()).hasSameElementsAs(players);
+    }
+
+    @Test
+    public void removePlayerFromTeamPlayerIsNull() {
+        var team = buildTeam("Dallas Stars");
+        assertThatExceptionOfType(PlayerNotInTeamException.class).isThrownBy(
+                () -> teamService.removePlayerFromTeam(team, null)
+        );
+    }
+
+    @Test
+    public void removePlayerFromTeamTeamIsNull() {
+        var player = buildPlayer(1L, "Peter Bondra");
+        assertThatExceptionOfType(NullPointerException.class).isThrownBy(
+                () -> teamService.removePlayerFromTeam(null, player)
+        );
+    }
+
     private Team buildTeam(String name) {
         var team = new Team();
         team.setName(name);