refactor: Extract custom test context

(cherry picked from commit 10e529e)

src/test/scala/org/camunda/feel/impl/interpreter/InterpreterContextExpressionTest.scala

@@ -61,20 +61,12 @@ class InterpreterContextExpressionTest
   it should "access a previous entry if there is a variable with the same name (custom context)" in {
     evaluateExpression(
       expression = "{a:1, b:a+1}",
-      context = new MyContext(Map("a" -> 0))
+      context = new MyCustomContext(Map("a" -> 0))
     ) should returnResult(
       Map("a" -> 1, "b" -> 2)
     )
   }
 
-  class MyContext(val vars: Map[String, Any]) extends CustomContext {
-    override def variableProvider: VariableProvider = new VariableProvider {
-      override def getVariable(name: String): Option[Any] = vars.get(name)
-
-      override def keys: Iterable[String] = vars.keys
-    }
-  }
-
   it should "be compared with '='" in {
     evaluateExpression("{} = {}") should returnResult(true)
     evaluateExpression("{x:1} = {x:1}") should returnResult(true)

src/test/scala/org/camunda/feel/impl/interpreter/InterpreterListExpressionTest.scala

@@ -421,17 +421,8 @@ class InterpreterListExpressionTest
                            {"loanId" : "AAA002", "amount" : 20},
                            {"loanId" : "AAA001", "amount" : 50}
                          ]}.loans[loanId = id].amount)""",
-      context = new MyContext(Map("id" -> "AAA002", "loanId" -> "AAA002"))
+      context = new MyCustomContext(Map("id" -> "AAA002", "loanId" -> "AAA002"))
     ) should returnResult(20)
   }
 
-
-  class MyContext(val vars: Map[String, Any]) extends CustomContext {
-    override def variableProvider: VariableProvider = new VariableProvider {
-      override def getVariable(name: String): Option[Any] = vars.get(name)
-
-      override def keys: Iterable[String] = vars.keys
-    }
-  }
-
 }

src/test/scala/org/camunda/feel/impl/interpreter/MyCustomContext.scala

@@ -0,0 +1,27 @@
+/*
+ * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
+ * under one or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information regarding copyright
+ * ownership. Camunda licenses this file to you under the Apache License,
+ * Version 2.0; 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 org.camunda.feel.impl.interpreter
+
+import org.camunda.feel.context.{CustomContext, VariableProvider}
+
+class MyCustomContext(val vars: Map[String, Any]) extends CustomContext {
+  override def variableProvider: VariableProvider = new VariableProvider {
+    override def getVariable(name: String): Option[Any] = vars.get(name)
+
+    override def keys: Iterable[String] = vars.keys
+  }
+}