Make load-break-switch looks like breaker (#394)

* Change sld-load-break-switch style
* Add test for sld-load-break-switch new style
* Add white background
* Update test references

Signed-off-by: Thomas ADAM <tadam@silicom.fr>

single-line-diagram-core/src/main/resources/ConvergenceLibrary/components.css

@@ -4,14 +4,14 @@
 .sld-disconnector {stroke-width: 3; stroke: black; fill: none}
 /* Stroke blue */
 .sld-breaker {stroke-width: 2; stroke: blue; fill:white}
+.sld-load-break-switch {stroke: blue; fill: white}
 /* Stroke --sld-vl-color with fallback black */
 .sld-bus-connection {fill: var(--sld-vl-color, black)}
 .sld-cell-shape-flat .sld-bus-connection {visibility: hidden}
 .sld-busbar-section {stroke: var(--sld-vl-color, black); stroke-width: 3; fill: none}
 /* Stroke --sld-vl-color with fallback red */
 .sld-wire {stroke: var(--sld-vl-color, #c80000); fill: none}
 /* Stroke --sld-vl-color with fallback blue */
-.sld-load-break-switch {stroke: var(--sld-vl-color, blue); fill: none}
 .sld-load {stroke: var(--sld-vl-color, blue); fill: none}
 .sld-generator {stroke: var(--sld-vl-color, blue); fill: none}
 .sld-two-wt {stroke: var(--sld-vl-color, blue); fill: none}

single-line-diagram-core/src/test/java/com/powsybl/sld/iidm/TestCaseLoadBreakSwitch.java

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2019, RTE (http://www.rte-france.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+package com.powsybl.sld.iidm;
+
+import com.powsybl.iidm.network.Country;
+import com.powsybl.iidm.network.Network;
+import com.powsybl.iidm.network.SwitchKind;
+import com.powsybl.iidm.network.TopologyKind;
+import com.powsybl.sld.builders.NetworkGraphBuilder;
+import com.powsybl.sld.iidm.extensions.ConnectablePosition;
+import com.powsybl.sld.model.graphs.VoltageLevelGraph;
+import com.powsybl.sld.util.TopologicalStyleProvider;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Thomas Adam <tadam at silicom.fr>
+ */
+public class TestCaseLoadBreakSwitch extends AbstractTestCaseIidm {
+
+    @Before
+    public void setUp() {
+        network = Network.create("testCaseLoadBreakSwitch", "test");
+        graphBuilder = new NetworkGraphBuilder(network);
+        substation = createSubstation(network, "s", "s", Country.FR);
+        vl = createVoltageLevel(substation, "vl", "vl", TopologyKind.NODE_BREAKER, 380, 10);
+        createBusBarSection(vl, "bbs", "bbs", 0, 1, 1);
+        createBusBarSection(vl, "bbs2", "bbs2", 1, 2, 2);
+        createGenerator(vl, "G", "G", "G", 0, ConnectablePosition.Direction.TOP, 2, 50, 100, false, 100, 400);
+        createLoad(vl, "l", "l", "l", 0, ConnectablePosition.Direction.BOTTOM, 3, 10, 10);
+        createSwitch(vl, "d", "d", SwitchKind.LOAD_BREAK_SWITCH, false, false, false, 0, 2);
+        createSwitch(vl, "b", "b", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 1, 3);
+        createSwitch(vl, "b1", "b1", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 0, 1);
+
+        createTwoWindingsTransformer(substation, "T11", "T11", 250, 100, 52, 12, 65, 90,
+                4, 6, vl.getId(), vl.getId(),
+                "T11", null, ConnectablePosition.Direction.TOP,
+                "T11", null, ConnectablePosition.Direction.BOTTOM);
+        createSwitch(vl, "b2", "b2", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 0, 4);
+        createSwitch(vl, "b3", "b3", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 1, 5);
+        createSwitch(vl, "b4", "b4", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 5, 6);
+        createSwitch(vl, "b5", "b5", SwitchKind.LOAD_BREAK_SWITCH, false, true, false, 5, 3);
+    }
+
+    @Test
+    public void test() {
+        // build graph
+        VoltageLevelGraph g = graphBuilder.buildVoltageLevelGraph(vl.getId());
+
+        // Run layout
+        voltageLevelGraphLayout(g);
+
+        // write Json and compare to reference
+        assertEquals(toString("/TestCaseLoadBreakSwitch.svg"), toSVG(g, "/TestCaseLoadBreakSwitch.svg", getDefaultDiagramLabelProvider(), new TopologicalStyleProvider(network)));
+    }
+}