Add tests for finding variable definitions in other files

Author: Kapil Borle

test/PowerShellEditorServices.Test.Host/LanguageServerTests.cs

@@ -455,6 +455,36 @@ await this.SendRequest(
             Assert.Equal(7, locations[0].Range.End.Character);
         }
 
+        [Fact]
+        public async Task FindsDefinitionOfVariableInOtherFile()
+        {
+            await this.SendOpenFileEvent("TestFiles\\FindReferences.ps1");
+
+            Location[] locations =
+                await this.SendRequest(
+                    DefinitionRequest.Type,
+                    new TextDocumentPositionParams
+                    {
+                        TextDocument = new TextDocumentIdentifier
+                        {
+                            Uri = "TestFiles\\FindReferences.ps1"
+                        },
+                        Position = new Position
+                        {
+                            Line = 15,
+                            Character = 20,
+                        }
+                    });
+
+            Assert.NotNull(locations);
+            Assert.Equal(1, locations.Length);
+            Assert.EndsWith("VariableDefinition.ps1", locations[0].Uri);
+            Assert.Equal(0, locations[0].Range.Start.Line);
+            Assert.Equal(0, locations[0].Range.Start.Character);
+            Assert.Equal(0, locations[0].Range.End.Line);
+            Assert.Equal(20, locations[0].Range.End.Character);
+        }
+
         [Fact]
         public async Task FindsOccurencesOnFunctionDefinition()
         {

test/PowerShellEditorServices.Test.Host/TestFiles/FindReferences.ps1

@@ -10,4 +10,7 @@ My-Function $things
 
 Write-Output "Hi";
 
-Write-Output ""
+Write-Output ""
+
+. .\VariableDefinition.ps1
+Write-Output $variableInOtherFile

test/PowerShellEditorServices.Test.Host/TestFiles/VariableDefinition.ps1

@@ -0,0 +1 @@
+$variableInOtherFile = "some value"