Tests: add more Mermaid tests

Samples taken from the website https://mermaid.js.org/

echosvg-test/src/test/java/io/sf/carte/echosvg/test/svg/MermaidRenderingTest.java

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+/*
+
+   See the NOTICE file distributed with this work for additional
+   information regarding copyright ownership.
+
+   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 io.sf.carte.echosvg.test.svg;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import io.sf.carte.echosvg.test.TestFonts;
+import io.sf.carte.echosvg.transcoder.TranscoderException;
+
+/**
+ * This test renders a number of Mermaid-generated SVG files under the {@code samples}
+ * directory, and compares the result with a reference image.
+ * <p>
+ * It bypasses EchoSVG's style computations and uses CSS4J instead.
+ * </p>
+ */
+public class MermaidRenderingTest extends AbstractBypassRenderingCheck {
+
+	@BeforeAll
+	public static void setUpBeforeClass() throws Exception {
+		TestFonts.loadTestFonts();
+	}
+
+	@Test
+	public void testMermaid() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid.svg");
+	}
+
+	@Test
+	public void testWebsiteDiagram93() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-93.svg");
+	}
+
+	@Disabled
+	@Test
+	public void testBlock() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-block.svg");
+	}
+
+	@Test
+	public void testC4Context() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-c4-context.svg");
+	}
+
+	@Test
+	public void testC4Component() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-c4-component.svg");
+	}
+
+	@Test
+	public void testC4Container() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-c4-container.svg");
+	}
+
+	@Test
+	public void testC4Deployment() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-c4-deployment.svg");
+	}
+
+	@Test
+	public void testC4Dynamic() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-c4-dynamic.svg");
+	}
+
+	@Test
+	public void testClass() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-class.svg", 1);
+	}
+
+	@Test
+	public void testEntityRelationship() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-erd.svg");
+	}
+
+	@Test
+	public void testEntityRelationship2() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-erd2.svg");
+	}
+
+	@Test
+	public void testFlowChart() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-flowchart.svg");
+	}
+
+	@Test
+	public void testFlowChartCyrillic() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-flowchart-cyrillic.svg");
+	}
+
+	@Test
+	public void testGantt() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-gantt.svg", 6);
+	}
+
+	@Test
+	public void testGitGraph() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-git-graph.svg", 1);
+	}
+
+	@Test
+	public void testJourney() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-journey.svg", 9);
+	}
+
+	@Test
+	public void testMindmap() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-mindmap.svg", 1);
+	}
+
+	@Test
+	public void testPie() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-pie.svg");
+	}
+
+	@Test
+	public void testQuadrant() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-quadrant.svg", 6);
+	}
+
+	@Test
+	public void testRequirement() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-requirement.svg", 1);
+	}
+
+	@Test
+	public void testSankey() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sankey.svg");
+	}
+
+	@Test
+	public void testSequence() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sequence.svg", 9);
+	}
+
+	@Test
+	public void testSequenceBackground() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sequence-background.svg", 5);
+	}
+
+	@Test
+	public void testSequenceCritical() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sequence-critical.svg", 5);
+	}
+
+	@Test
+	public void testSequenceGrouping() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sequence-grouping.svg", 11);
+	}
+
+	@Test
+	public void testSequenceParallel() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-sequence-parallel.svg", 7);
+	}
+
+	@Test
+	public void testState() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-state.svg");
+	}
+
+	@Test
+	public void testTimeline() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-timeline.svg", 2);
+	}
+
+	@Test
+	public void testXY() throws TranscoderException, IOException {
+		testNV("samples/tests/spec2/foreign/mermaid-xy.svg");
+	}
+
+}