Merge pull request #29 from spbu-coding-2023/feature/integrateTest

Add integrate test

src/test/kotlin/model/IntegrateTests.kt

@@ -0,0 +1,63 @@
+package model
+
+import androidx.compose.ui.geometry.Offset
+import model.graph.UndirectedGraph
+import org.junit.jupiter.api.Test
+import viewModel.MainViewModel
+import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
+
+class IntegrateTests {
+    @Test
+    fun scenario1() {
+        // User launch app, mainViewModel is creating
+        val AMOUNT_NODES = 16
+        val EDGE_CHANGE = 5.0
+
+        val graph = UndirectedGraph().apply {
+            for (i in (0 until AMOUNT_NODES)) {
+                addVertex(i)
+            }
+
+            for (i in (0 until AMOUNT_NODES)) {
+                for (j in (0 until AMOUNT_NODES)) {
+                    if (Math.random() < EDGE_CHANGE / 100) {
+                        addEdge(i, j)
+                    }
+                }
+            }
+        }
+
+        val mainViewModel = MainViewModel(graph)
+
+        // User create a few nodes
+        val oldSize = graph.vertices.size
+
+        mainViewModel.canvasViewModel.isNodeCreatingMode = true
+        mainViewModel.canvasViewModel.createNode(offset = Offset(100f, 100f))
+        mainViewModel.canvasViewModel.createNode(offset = Offset(300f, 100f))
+        mainViewModel.canvasViewModel.createNode(offset = Offset(200f, 100f))
+        mainViewModel.canvasViewModel.createNode(offset = Offset(100f, 100f))
+
+        // Graph changed
+        assertTrue(graph.vertices.size != oldSize)
+
+        mainViewModel.canvasViewModel.isNodeCreatingMode = false
+
+        // User add edge
+        mainViewModel.canvasViewModel.isEdgeCreatingMode = true
+        val firstVertex = mainViewModel.canvasViewModel.vertices.find { it.vertexViewModel.getKey() == 17 }
+            ?: throw Error("There is no vertex with id 17")
+        val secondVertex = mainViewModel.canvasViewModel.vertices.find { it.vertexViewModel.getKey() == 18 }
+            ?: throw Error("There is no vertex with id 18")
+
+        // User click on two vertecies
+        mainViewModel.canvasViewModel.onClick(firstVertex)
+        mainViewModel.canvasViewModel.onClick(secondVertex)
+
+        // Edge created
+        val edges = mainViewModel.canvasViewModel.edges.flatten()
+        val edge = edges.find { it.first == firstVertex && it.second == secondVertex }
+        assertNotNull(edge)
+    }
+}