public async Task HoveringVariableShadowedByAnotherReturnsTheOriginalVariable()
{
var source = @"
class Test {
var x: int;
method DoIt() {
var x := ""1"";
{
var x := 2;
}
print x;
}
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (8, 10));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nx: string\n```", markup.Value);
}
public async Task HoveringTypeOfConstructorInvocationReturnsTheUserDefinedType()
{
var source = @"
class A {
constructor() {}
}
class B {
var a: A;
constructor() {
a := new A();
}
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (8, 13));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nclass A\n```", markup.Value);
}
public async Task HoveringVariableShadowingAnotherVariableReturnsTheShadowingVariable()
{
var source = @"
class Test {
var x: int;
method DoIt() {
var x := 1;
{
var x := ""2"";
print x;
}
}
}".TrimStart();
var documentItem = CreateTestDocument(source);
await client.OpenDocumentAndWaitAsync(documentItem, CancellationToken);
var hover = await RequestHover(documentItem, (7, 12));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nx: string\n```", markup.Value);
}
public async Task HoveringInvocationOfUnknownFunctionOrMethodReturnsNull()
{
var source = @"
method DoIt() returns (x: int) {
return GetX();
}".TrimStart();
var documentItem = CreateTestDocument(source);
await client.OpenDocumentAndWaitAsync(documentItem, CancellationToken);
var hover = await RequestHover(documentItem, (1, 12));
Assert.IsNull(hover);
}
public async Task HoveringInvocationOfUnknownFunctionOrMethodReturnsEmptyHover()
{
var source = @"
method DoIt() returns (x: int) {
return GetX();
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (1, 12));
Assert.IsNotNull(hover);
Assert.IsNull(hover.Contents.MarkupContent);
}
public async Task HoveringParentTraitOfUserDefinedTypeReturnsTheParentTrait()
{
var source = @"
trait Base {}
class Sub extends Base {}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (1, 19));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\ntrait Base\n```", markup.Value);
}
public async Task HoveringFieldOfSystemTypeReturnsDefinition()
{
var source = @"
method DoIt() {
var x := new int[0];
var y := x.Length;
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (2, 14));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nconst array.Length: int\n```", markup.Value);
}
public async Task HoveringParameterOfMethodReturnsTheUserDefinedType()
{
var source = @"
class A {
constructor() {}
}
method DoIt(a: A) {}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (4, 15));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nclass A\n```", markup.Value);
}
public async Task HoveringParameterDesignatorOfMethodInsideDataTypeReturnsTheParameterType()
{
var source = @"
datatype SomeType = SomeType {
method AssertEqual(x: int, y: int) {
assert x == y;
}
}".TrimStart();
var documentItem = CreateTestDocument(source);
client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (2, 11));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nx: int\n```", markup.Value);
}
public async Task HoveringMethodInvocationOfMethodDeclaredInSameDocumentReturnsSignature()
{
var source = @"
method DoIt() returns (x: int) {
}
method CallDoIt() returns () {
var x := DoIt();
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (4, 14));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nmethod DoIt() returns (x: int)\n```", markup.Value);
}
public async Task HoveringFunctionInvocationOfFunctionDeclaredInForeignDocumentReturnsSignature()
{
// TODO Actually, the invoked function is a function method.
var source = @"
include ""foreign.dfy""
method DoIt() returns (x: int) {
var a := new A();
return a.GetX();
}".TrimStart();
var documentItem = CreateTestDocument(source, Path.Combine(Directory.GetCurrentDirectory(), "Lookup/TestFiles/test.dfy"));
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (4, 13));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nfunction A.GetX(): int\n```", markup.Value);
}
public async Task HoveringVariableShadowingFieldReturnsTheFieldIfThisIsUsed()
{
var source = @"
class Test {
var x: int;
method DoIt() {
var x := 1;
print this.x;
}
}".TrimStart();
var documentItem = CreateTestDocument(source);
_client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (5, 15));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nvar Test.x: int\n```", markup.Value);
}
public async Task HoveringMethodInvocationOfDataTypeReturnsMethodSignature()
{
var source = @"
datatype SomeType = SomeType {
method AssertEqual(x: int, y: int) {
assert x == y;
}
}
method Main() {
var instance: SomeType;
instance.AssertEqual(1, 2);
}".TrimStart();
var documentItem = CreateTestDocument(source);
client.OpenDocument(documentItem);
var hover = await RequestHover(documentItem, (8, 12));
Assert.IsNotNull(hover);
var markup = hover.Contents.MarkupContent;
Assert.AreEqual(MarkupKind.Markdown, markup.Kind);
Assert.AreEqual("```dafny\nmethod SomeType.AssertEqual(x: int, y: int)\n```", markup.Value);
}
