Add DeathmatchScoringComponent unit tests

tests/test_deathmatch_scoring_component.gd

@@ -0,0 +1,69 @@
+# This file is part of open-fpsz.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+extends GutTest
+
+var PLAYER : PackedScene = preload("res://entities/player/player.tscn")
+var SCOREBOARD : PackedScene = preload("res://interfaces/scoreboard/scoreboard.tscn")
+
+var _subject : DeathmatchScoringComponent
+var _scoreboard : Object
+var _victim : Player
+var _killer : Player
+
+func _setup_player(player_id : int) -> Player:
+	var player : Player = PLAYER.instantiate()
+	player.name = str(player_id)
+	add_child(player) # we can't autofree in this test setup
+	var participant : MatchParticipantComponent = player.match_participant_component
+	player.match_participant_component.player_id = player_id
+	_scoreboard.add_participant(participant)
+	_subject.subscribe_player(player)
+	_subject._players = self
+	return player
+
+func before_each() -> void:
+	_subject = DeathmatchScoringComponent.new()
+	_scoreboard = double(SCOREBOARD).instantiate()
+	stub(_scoreboard, 'add_score_to_player')
+	stub(_scoreboard, 'increment_kill_count')
+	_subject._scoreboard = _scoreboard
+	_victim = _setup_player(0)
+	_killer = _setup_player(1)
+
+func after_each() -> void:
+	_subject.unsubscribe_player(_victim)
+	_subject.unsubscribe_player(_killer)
+	_victim.free()
+	_killer.free()
+	_subject.free()
+
+func _kill_player(victim : Player, killer : Player) -> void:
+	victim.died.emit(victim, killer.match_participant_component.player_id)
+
+func test_player_gets_no_score_for_self_kill() -> void:
+	_kill_player(_victim, _victim)
+	assert_not_called(_scoreboard, 'add_score_to_player')
+	assert_not_called(_scoreboard, 'increment_kill_count')
+
+func test_killer_gets_score_after_kill() -> void:
+	_kill_player(_victim, _killer)
+	assert_called(_scoreboard, 'add_score_to_player', [_killer.match_participant_component, _subject.ON_KILL_SCORE])
+	assert_called(_scoreboard, 'increment_kill_count', [_killer.match_participant_component])
+
+func test_killer_leaves_before_kill() -> void:
+	remove_child(_killer)
+	_kill_player(_victim, _killer)
+	assert_not_called(_scoreboard, 'add_score_to_player')
+	assert_not_called(_scoreboard, 'increment_kill_count')