Введение теста SupplierTest

function/src/test/java/com/sogeor/framework/function/SupplierTest.java

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+/*
+ * Copyright 2024 Sogeor
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.sogeor.framework.function;
+
+import com.sogeor.framework.annotation.NonNull;
+import com.sogeor.framework.throwable.fault.ImaginaryFault;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+final class SupplierTest {
+
+    @Test
+    void methodDirect() {
+        final @NonNull var object = new Object();
+        final @NonNull var supplier = Supplier.<Object, ImaginaryFault>direct(object);
+        assertNotNull(supplier);
+
+        assertEquals(object, supplier.get());
+    }
+
+    @Test
+    void methodOf() {
+        final @NonNull var object = new Object();
+        final @NonNull var supplier = Supplier.<Object, ImaginaryFault>of(() -> object);
+        assertNotNull(supplier);
+
+        assertEquals(object, supplier.get());
+    }
+
+    @Test
+    void methodOrPassed() {
+        final @NonNull var object = new Object();
+        final @NonNull var supplier = Supplier.of(() -> {
+            throw new RuntimeException();
+        }).orPassed(object);
+        assertNotNull(supplier);
+
+        assertEquals(object, supplier.get());
+    }
+
+    @Test
+    void methodOrSupplied() {
+        final @NonNull var object = new Object();
+        final @NonNull var supplier = Supplier.of(() -> {
+            throw new RuntimeException();
+        }).orSupplied(Supplier.direct(object));
+        assertNotNull(supplier);
+
+        assertEquals(object, supplier.get());
+    }
+
+}