gopls/internal/regtest: replace NoDiagnostics with NoMatchingDiagnostics

Replace uses of NoDiagnostics with the more flexible
NoMatchingDiagnostics, and rename NoMatchingDiagnostics to
NoDiagnostics.

Updates golang/go#39384

Change-Id: I15b19ad6c9b58c1ae88ec1b444bb589002f75a80
Reviewed-on: https://go-review.googlesource.com/c/tools/+/461936
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

Author: findleyr

gopls/internal/lsp/regtest/expectation.go

@@ -728,12 +728,10 @@ func Diagnostics(filters ...DiagnosticFilter) Expectation {
 	}
 }
 
-// NoMatchingDiagnostics asserts that there are no diagnostics matching the
-// given filters. Notably, if no filters are supplied this assertion checks
-// that there are no diagnostics at all, for any file.
-//
-// TODO(rfindley): replace NoDiagnostics with this, and rename.
-func NoMatchingDiagnostics(filters ...DiagnosticFilter) Expectation {
+// NoDiagnostics asserts that there are no diagnostics matching the given
+// filters. Notably, if no filters are supplied this assertion checks that
+// there are no diagnostics at all, for any file.
+func NoDiagnostics(filters ...DiagnosticFilter) Expectation {
 	check := func(s State) Verdict {
 		diags := flattenDiagnostics(s)
 		for _, filter := range filters {
@@ -778,7 +776,7 @@ func flattenDiagnostics(state State) []flatDiagnostic {
 // -- Diagnostic filters --
 
 // A DiagnosticFilter filters the set of diagnostics, for assertion with
-// Diagnostics or NoMatchingDiagnostics.
+// Diagnostics or NoDiagnostics.
 type DiagnosticFilter struct {
 	desc  string
 	check func(name string, _ protocol.Diagnostic) bool
@@ -832,21 +830,6 @@ func WithMessageContaining(substring string) DiagnosticFilter {
 
 // TODO(rfindley): eliminate all expectations below this point.
 
-// NoDiagnostics asserts that either no diagnostics are sent for the
-// workspace-relative path name, or empty diagnostics are sent.
-func NoDiagnostics(name string) Expectation {
-	check := func(s State) Verdict {
-		if diags := s.diagnostics[name]; diags == nil || len(diags.Diagnostics) == 0 {
-			return Met
-		}
-		return Unmet
-	}
-	return SimpleExpectation{
-		check:       check,
-		description: fmt.Sprintf("empty or no diagnostics for %q", name),
-	}
-}
-
 // DiagnosticAtRegexp expects that there is a diagnostic entry at the start
 // position matching the regexp search string re in the buffer specified by
 // name. Note that this currently ignores the end position.

gopls/internal/regtest/codelens/codelens_test.go

@@ -215,13 +215,13 @@ require golang.org/x/hello v1.2.3
 					// but there may be some subtlety in timing here, where this
 					// should always succeed, but may not actually test the correct
 					// behavior.
-					NoMatchingDiagnostics(env.AtRegexp("b/go.mod", `require`)),
+					NoDiagnostics(env.AtRegexp("b/go.mod", `require`)),
 				)
 				// Check for upgrades in b/go.mod and then clear them.
 				env.ExecuteCodeLensCommand("b/go.mod", command.CheckUpgrades, nil)
 				env.Await(env.DiagnosticAtRegexpWithMessage("b/go.mod", `require`, "can be upgraded"))
 				env.ExecuteCodeLensCommand("b/go.mod", command.ResetGoModDiagnostics, nil)
-				env.Await(NoDiagnostics("b/go.mod"))
+				env.Await(NoDiagnostics(ForFile("b/go.mod")))
 
 				// Apply the diagnostics to a/go.mod.
 				env.ApplyQuickFixes("a/go.mod", d.Diagnostics)
@@ -331,6 +331,6 @@ func Foo() {
 
 		// Regenerate cgo, fixing the diagnostic.
 		env.ExecuteCodeLensCommand("cgo.go", command.RegenerateCgo, nil)
-		env.Await(NoDiagnostics("cgo.go"))
+		env.Await(NoDiagnostics(ForFile("cgo.go")))
 	})
 }

gopls/internal/regtest/codelens/gcdetails_test.go

@@ -66,7 +66,7 @@ func main() {
 		// Editing a buffer should cause gc_details diagnostics to disappear, since
 		// they only apply to saved buffers.
 		env.EditBuffer("main.go", fake.NewEdit(0, 0, 0, 0, "\n\n"))
-		env.AfterChange(NoDiagnostics("main.go"))
+		env.AfterChange(NoDiagnostics(ForFile("main.go")))
 
 		// Saving a buffer should re-format back to the original state, and
 		// re-enable the gc_details diagnostics.
@@ -75,7 +75,7 @@ func main() {
 
 		// Toggle the GC details code lens again so now it should be off.
 		env.ExecuteCodeLensCommand("main.go", command.GCDetails, nil)
-		env.Await(NoDiagnostics("main.go"))
+		env.Await(NoDiagnostics(ForFile("main.go")))
 	})
 }
 

gopls/internal/regtest/diagnostics/analysis_test.go

@@ -44,6 +44,6 @@ func main() {
 		)
 
 		env.ApplyQuickFixes("main.go", d.Diagnostics)
-		env.AfterChange(NoDiagnostics("main.go"))
+		env.AfterChange(NoDiagnostics(ForFile("main.go")))
 	})
 }

gopls/internal/regtest/diagnostics/builtin_test.go

@@ -30,6 +30,6 @@ const (
 		if !strings.HasSuffix(name, "builtin.go") {
 			t.Fatalf("jumped to %q, want builtin.go", name)
 		}
-		env.AfterChange(NoDiagnostics("builtin.go"))
+		env.AfterChange(NoDiagnostics(ForFile("builtin.go")))
 	})
 }