clean up for the tests

This mostly corrects file and class names for PSR-2. Function names have
not been adjusted yet

_test/QueryBuilderWhereTest.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace dokuwiki\plugin\struct\test;
+
+use dokuwiki\plugin\struct\meta\QueryBuilder;
+use dokuwiki\plugin\struct\meta\QueryBuilderWhere;
+
+/**
+ * @group plugin_struct
+ * @group plugins
+ */
+class QueryBuilderWhereTest extends StructTest
+{
+
+    public function test_sql()
+    {
+        $QB = new QueryBuilder();
+        $where = new QueryBuilderWhere($QB);
+
+        $where->whereAnd('foo = foo');
+        $this->assertEquals(
+            $this->cleanWS('(foo = foo)'),
+            $this->cleanWS($where->toSQL())
+        );
+
+        $where->whereAnd('bar = bar');
+        $this->assertEquals(
+            $this->cleanWS('(foo = foo AND bar = bar)'),
+            $this->cleanWS($where->toSQL())
+        );
+
+        $sub = $where->whereSubAnd();
+        $this->assertEquals(
+            $this->cleanWS('(foo = foo AND bar = bar)'),
+            $this->cleanWS($where->toSQL())
+        );
+
+        $sub->whereAnd('zab = zab');
+        $this->assertEquals(
+            $this->cleanWS('(foo = foo AND bar = bar AND (zab = zab))'),
+            $this->cleanWS($where->toSQL())
+        );
+
+        $sub->whereOr('fab = fab');
+        $this->assertEquals(
+            $this->cleanWS('(foo = foo AND bar = bar AND (zab = zab OR fab = fab))'),
+            $this->cleanWS($where->toSQL())
+        );
+    }
+
+    public function test_orsql()
+    {
+        $QB = new QueryBuilder();
+        $where = new QueryBuilderWhere($QB);
+
+        $where->whereAnd("foo = ''");
+        $this->assertEquals(
+            $this->cleanWS("(foo = '')"),
+            $this->cleanWS($where->toSQL())
+        );
+
+        $sub = $where->whereSubOr();
+        $sub->whereAnd('bar = bar');
+        $sub->whereAnd('baz = baz');
+        $this->assertEquals(
+            $this->cleanWS("(foo = '' OR (bar = bar AND baz = baz))"),
+            $this->cleanWS($where->toSQL())
+        );
+    }
+}