Add test for MapValueResolver

Author: mattbertolini

spring-annotated-data-binder-core/src/test/java/com/mattbertolini/spring/web/bind/support/MapValueResolverTest.java

@@ -0,0 +1,32 @@
+package com.mattbertolini.spring.web.bind.support;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MapValueResolverTest {
+    @Test
+    void resolveValueReturnsMapValueFromKey() {
+        Map<String, Object> map = Map.of("key1", "value1", "key2", "value2");
+        MapValueResolver valueResolver = new MapValueResolver(map);
+        assertThat(valueResolver.resolveValue("key1", String.class)).isEqualTo("value1");
+    }
+
+    @Test
+    void getNamesReturnsMapKeys() {
+        Map<String, Object> map = Map.of("key1", "value1", "key2", "value2");
+        MapValueResolver valueResolver = new MapValueResolver(map);
+        assertThat(valueResolver.getNames()).contains("key1", "key2");
+    }
+
+    @Test
+    void valuesAccessorIsUnmodifiable() {
+        Map<String, Object> map = Map.of("key1", "value1", "key2", "value2");
+        MapValueResolver valueResolver = new MapValueResolver(map);
+        assertThat(valueResolver.values())
+            .isUnmodifiable()
+            .isEqualTo(map);
+    }
+}