starmath: add test for detecting MathML's namespace prefix 'math:'

Change-Id: Ib1b3ec5fc25a05da4970c49a18647299d3d8ce01
Reviewed-on: https://gerrit.libreoffice.org/15013Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

starmath/qa/extras/data/ns-prefix-math.mml

+<?xml version="1.0" encoding="UTF-8" ?>
+<math:math xmlns:math="http://www.w3.org/1998/Math/MathML">
+  <math:msup>
+    <math:mfenced>
+      <math:mrow>
+        <math:mi>a</math:mi>
+        <math:mo>+</math:mo>
+        <math:mi>b</math:mi>
+      </math:mrow>
+    </math:mfenced>
+    <math:mn>2</math:mn>
+  </math:msup>
+</math:math>

starmath/qa/extras/mmlimport-test.cxx

@@ -30,10 +30,12 @@ public:
     virtual void tearDown() SAL_OVERRIDE;
 
     void testSimple();
+    void testNsPrefixMath();
     void testMaction();
 
     CPPUNIT_TEST_SUITE(Test);
     CPPUNIT_TEST(testSimple);
+    CPPUNIT_TEST(testNsPrefixMath);
     CPPUNIT_TEST(testMaction);
     CPPUNIT_TEST_SUITE_END();
 
@@ -83,6 +85,15 @@ void Test::tearDown()
 void Test::testSimple()
 {
     loadURL(getURLFromSrc("starmath/qa/extras/data/simple.mml"));
+    OUString sExpected("left ( {italic \"a\" + italic \"b\"} right )^italic \"2\"");
+    CPPUNIT_ASSERT_EQUAL_MESSAGE("loaded text", sExpected, mxDocShell->GetText());
+}
+
+void Test::testNsPrefixMath()
+{
+    loadURL(getURLFromSrc("starmath/qa/extras/data/ns-prefix-math.mml"));
+    OUString sExpected("left ( {italic \"a\" + italic \"b\"} right )^italic \"2\"");
+    CPPUNIT_ASSERT_EQUAL_MESSAGE("loaded text", sExpected, mxDocShell->GetText());
 }
 
 void Test::testMaction()