Add delete functions

src/integration-test/kotlin/postgresql/DeleteIT.kt

@@ -0,0 +1,49 @@
+package solutions.bitbadger.documents.postgresql
+
+import org.junit.jupiter.api.DisplayName
+import solutions.bitbadger.documents.common.Delete
+import kotlin.test.Test
+
+@DisplayName("PostgreSQL - Delete")
+class DeleteIT {
+
+    @Test
+    @DisplayName("byId deletes a matching ID")
+    fun byIdMatch() =
+        PgDB().use(Delete::byIdMatch)
+
+    @Test
+    @DisplayName("byId succeeds when no ID matches")
+    fun byIdNoMatch() =
+        PgDB().use(Delete::byIdNoMatch)
+
+    @Test
+    @DisplayName("byFields deletes matching documents")
+    fun byFieldsMatch() =
+        PgDB().use(Delete::byFieldsMatch)
+
+    @Test
+    @DisplayName("byFields succeeds when no documents match")
+    fun byFieldsNoMatch() =
+        PgDB().use(Delete::byFieldsNoMatch)
+
+    @Test
+    @DisplayName("byContains deletes matching documents")
+    fun byContainsMatch() =
+        PgDB().use(Delete::byContainsMatch)
+
+    @Test
+    @DisplayName("byContains succeeds when no documents match")
+    fun byContainsNoMatch() =
+        PgDB().use(Delete::byContainsNoMatch)
+
+    @Test
+    @DisplayName("byJsonPath deletes matching documents")
+    fun byJsonPathMatch() =
+        PgDB().use(Delete::byJsonPathMatch)
+
+    @Test
+    @DisplayName("byJsonPath succeeds when no documents match")
+    fun byJsonPathNoMatch() =
+        PgDB().use(Delete::byJsonPathNoMatch)
+}