tests

dunno how it worked on my server without registering? maybe skbee has them undocumented?

Author: sovdeeth

src/main/java/org/skriptlang/skript/bukkit/misc/MiscModule.java

@@ -2,6 +2,7 @@
 
 import org.skriptlang.skript.addon.AddonModule;
 import org.skriptlang.skript.addon.SkriptAddon;
+import org.skriptlang.skript.bukkit.misc.expressions.ExprDustingProgress;
 import org.skriptlang.skript.bukkit.misc.expressions.ExprWithYawPitch;
 import org.skriptlang.skript.registration.SyntaxRegistry;
 
@@ -11,6 +12,7 @@ public class MiscModule implements AddonModule {
 	public void load(SkriptAddon addon) {
 		SyntaxRegistry registry = addon.syntaxRegistry();
 		ExprWithYawPitch.register(registry);
+		ExprDustingProgress.register(registry);
 	}
 
 	@Override

src/main/java/org/skriptlang/skript/bukkit/misc/expressions/ExprDustingProgress.java

@@ -89,8 +89,8 @@ public boolean init(Expression<?>[] expressions, int matchedPattern, Kleenean is
 	public void change(Event event, Object @Nullable [] delta, ChangeMode mode) {
 		int level = delta == null ? 0 : (Integer) delta[0];
 		Function<Brushable, Integer> getValue = switch (mode) {
-			case ADD -> brushable -> level + brushable.getDusted();
-			case REMOVE -> brushable -> level - brushable.getDusted();
+			case ADD -> brushable -> brushable.getDusted() + level;
+			case REMOVE -> brushable -> brushable.getDusted() - level;
 			case SET,RESET -> brushable -> level;
 			default -> throw new IllegalArgumentException("should not be able to change with mode " + mode);
 		};

src/test/skript/tests/syntaxes/expressions/ExprDustingProgress.sk

@@ -0,0 +1,53 @@
+test "dusting progress" when running minecraft "1.20":
+	set {_old} to block data of test-block
+	set block at test-block to suspicious gravel
+	set {_block} to block at test-block
+	set {_blockdata} to block data of {_block}
+
+	# test getting initial value
+	assert dusting progress of {_block} is 0 with "Initial dusting progress should be 0"
+
+	# test setting
+	set dusting progress of {_block} to 2
+	assert dusting progress of {_block} is 2 with "Failed to set dusting progress to 2"
+
+	# test max dusting progress
+	assert max dusting progress of {_block} is 3 with "Max dusting progress should be 3"
+	assert maximum dusting progress of {_block} is 3 with "Maximum dusting progress should be 3"
+
+	# test adding
+	set dusting progress of {_block} to 1
+	add 1 to dusting progress of {_block}
+	assert dusting progress of {_block} is 2 with "Failed to add 1 to dusting progress"
+
+	# test clamping at max
+	add 99 to dusting progress of {_block}
+	assert dusting progress of {_block} is 3 with "Dusting progress should be clamped at max"
+
+	# test removing
+	set dusting progress of {_block} to 2
+	remove 1 from dusting progress of {_block}
+	assert dusting progress of {_block} is 1 with "Failed to remove 1 from dusting progress"
+
+	# test clamping at min
+	remove 99 from dusting progress of {_block}
+	assert dusting progress of {_block} is 0 with "Dusting progress should be clamped at 0"
+
+	# test reset
+	set dusting progress of {_block} to 2
+	assert dusting progress of {_block} is 2 with "Failed to set dusting progress"
+	reset dusting progress of {_block}
+	assert dusting progress of {_block} is 0 with "Failed to reset dusting progress"
+
+	# test with blockdata
+	set dusting progress of {_blockdata} to 2
+	assert dusting progress of {_blockdata} is 2 with "Failed to set dusting progress on blockdata"
+
+	# test alternative syntax (excavation)
+	set block at test-block to suspicious sand
+	set {_sand} to block at test-block
+	set excavation progress of {_sand} to 1
+	assert excavation progress of {_sand} is 1 with "Failed to set excavation progress"
+	assert max excavation progress of {_sand} is 3 with "Max excavation progress should be 3"
+
+	set block data of test-block to {_old}