gopls/internal/regtest: add a failing test for swig
Fixes golang/go#37660
Change-Id: I4607142af03224820e8350a85eca722586b150b5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/261140
Trust: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
diff --git a/gopls/internal/regtest/diagnostics_test.go b/gopls/internal/regtest/diagnostics_test.go
index 109561a..9d652e1 100644
--- a/gopls/internal/regtest/diagnostics_test.go
+++ b/gopls/internal/regtest/diagnostics_test.go
@@ -1382,3 +1382,48 @@
)
})
}
+
+func TestSwig(t *testing.T) {
+ t.Skipf("skipped until golang/go#37098 is resolved")
+
+ const mod = `
+-- go.mod --
+module mod.com
+-- pkg/simple/export_swig.go --
+package simple
+
+func ExportSimple(x, y int) int {
+ return Gcd(x, y)
+}
+-- pkg/simple/simple.swigcxx --
+%module simple
+
+%inline %{
+extern int gcd(int x, int y)
+{
+ int g;
+ g = y;
+ while (x > 0) {
+ g = x;
+ x = y % x;
+ y = g;
+ }
+ return g;
+}
+%}
+-- main.go --
+package a
+
+func main() {
+ var x int
+}
+`
+ run(t, mod, func(t *testing.T, env *Env) {
+ env.Await(
+ OnceMet(
+ InitialWorkspaceLoad,
+ NoDiagnosticWithMessage("illegal character U+0023 '#'"),
+ ),
+ )
+ })
+}
diff --git a/gopls/internal/regtest/expectation.go b/gopls/internal/regtest/expectation.go
index 697363f..70601cc 100644
--- a/gopls/internal/regtest/expectation.go
+++ b/gopls/internal/regtest/expectation.go
@@ -11,6 +11,7 @@
"golang.org/x/tools/internal/lsp"
"golang.org/x/tools/internal/lsp/protocol"
+ "golang.org/x/tools/internal/span"
)
// An Expectation asserts that the state of the editor at a point in time
@@ -491,3 +492,29 @@
path: name,
}
}
+
+// NoDiagnosticWithMessage asserts that there is no diagnostic entry with the
+// given message.
+//
+// This should only be used in combination with OnceMet for a given condition,
+// otherwise it may always succeed.
+func NoDiagnosticWithMessage(msg string) DiagnosticExpectation {
+ var uri span.URI
+ isMet := func(diags *protocol.PublishDiagnosticsParams) bool {
+ for _, d := range diags.Diagnostics {
+ if d.Message == msg {
+ return true
+ }
+ }
+ return false
+ }
+ var path string
+ if uri != "" {
+ path = uri.Filename()
+ }
+ return DiagnosticExpectation{
+ isMet: isMet,
+ description: fmt.Sprintf("no diagnostic with message %s", msg),
+ path: path,
+ }
+}
