[WTH] Implement Ertai's Familiar

Mage.Tests/src/test/java/org/mage/test/cards/single/wth/ErtaisFamiliarTest.java

@@ -0,0 +1,106 @@
+
+package org.mage.test.cards.single.wth;
+
+import mage.constants.PhaseStep;
+import mage.constants.Zone;
+import org.junit.Test;
+import org.mage.test.serverside.base.CardTestPlayerBase;
+
+/**
+ * @author Susucr
+ */
+public class ErtaisFamiliarTest extends CardTestPlayerBase {
+
+    /**
+     * {@link mage.cards.e.ErtaisFamiliar} <br>
+     * Ertai's Familiar {1}{U} <br>
+     * Creature — Illusion <br>
+     * Phasing <br>
+     * When Ertai’s Familiar phases out or leaves the battlefield, mill three cards. <br>
+     * {U}: Until your next upkeep, Ertai’s Familiar can’t phase out. <br>
+     * 2/2
+     */
+    private final String familiar = "Ertai's Familiar";
+
+    @Test
+    public void test_phaseout() {
+        setStrictChooseMode(true);
+
+        addCard(Zone.HAND, playerA, familiar);
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 2);
+
+        // Casting the familiar for it to not start phasing out turn 1.
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, familiar);
+
+        setStopAt(3, PhaseStep.PRECOMBAT_MAIN);
+        execute();
+
+        assertGraveyardCount(playerA, 3);
+        assertPermanentCount(playerA, familiar, 0);
+    }
+
+    @Test
+    public void test_activate_cant_phaseout() {
+        setStrictChooseMode(true);
+
+        addCard(Zone.HAND, playerA, familiar);
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 3);
+
+        // Casting the familiar for it to not start phasing out turn 1.
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, familiar);
+
+        activateAbility(1, PhaseStep.POSTCOMBAT_MAIN, playerA, "{U}:");
+
+        setStopAt(3, PhaseStep.PRECOMBAT_MAIN);
+        execute();
+
+        assertGraveyardCount(playerA, 0);
+        assertPermanentCount(playerA, familiar, 1);
+    }
+
+    @Test
+    public void test_activate_cant_phaseout_other_effect() {
+        setStrictChooseMode(true);
+
+        addCard(Zone.HAND, playerA, familiar);
+        // Put a +1/+1 counter on target creature. It phases out.
+        addCard(Zone.HAND, playerA, "Slip Out the Back");
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 4);
+
+        // Casting the familiar for it to not start phasing out turn 1.
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, familiar);
+
+        activateAbility(1, PhaseStep.BEGIN_COMBAT, playerA, "{U}:");
+        castSpell(1, PhaseStep.POSTCOMBAT_MAIN, playerA, "Slip Out the Back", familiar);
+
+        setStopAt(3, PhaseStep.PRECOMBAT_MAIN);
+        execute();
+
+        assertGraveyardCount(playerA, 1); // Slip Out the Back
+        assertPermanentCount(playerA, familiar, 1);
+        assertPowerToughness(playerA, familiar, 3, 3);
+    }
+
+    @Test
+    public void test_activate_cant_phaseout_then_blink() {
+        setStrictChooseMode(true);
+
+        addCard(Zone.HAND, playerA, familiar);
+        // Exile target creature you control, then return that card to the battlefield under its owner’s control.
+        // Draw a card.
+        addCard(Zone.HAND, playerA, "Blur");
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 6);
+
+        // Casting the familiar for it to not start phasing out turn 1.
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, familiar);
+
+        activateAbility(1, PhaseStep.BEGIN_COMBAT, playerA, "{U}:");
+        castSpell(1, PhaseStep.POSTCOMBAT_MAIN, playerA, "Blur", familiar);
+
+        setStopAt(3, PhaseStep.PRECOMBAT_MAIN);
+        execute();
+
+        assertGraveyardCount(playerA, 3 * 2 + 1); // 2 familiar trigger + Blur
+        assertPermanentCount(playerA, familiar, 0);
+    }
+}