Are string interpolations accepted during a macro?

Using Swift
1

Here's part of my expression macro code:

      guard let literal = node.arguments.first?.expression(StringLiteralExprSyntax.self)
      else {
        throw .notStringLiteral
      }
      guard let string = literal.representedLiteralValue else {
        throw .interpolationTermsPresent
      }

When I run the test for the "interpolationTermsPresent", I get the wrong diagnostic. I get the one for "notStringLiteral".

    @Test("Do not use string interpolation")
    func noInterpolation() {
      #if canImport(MyMacros)
        assertMacroExpansion(
          ##"""
          #myMacro(\("Helo"))
          """##,
          expandedSource: """
            0
            """,
          diagnostics: [
            .init(
              id: .init(
                domain: "MyMacroType",
                id: "contains-string-interpolation"
              ),
              message: "String interpolation is not permitted.",
              line: 1,
              column: 1,
              severity: .error
            )
          ],
          macros: testMacros
        )
      #endif
    }

It's like the "\("Helo")" gets flagged as not-a-string before the interpolation checker sees it. What's going on?

2

I believe you want ##"#myMacro("\(someVariable)")"##

3

This worked! Thanks.