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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /src/internal/reflectlite/set_test.go
parentInitial commit. (diff)
downloadgolang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz
golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/internal/reflectlite/set_test.go')
-rw-r--r--src/internal/reflectlite/set_test.go101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/internal/reflectlite/set_test.go b/src/internal/reflectlite/set_test.go
new file mode 100644
index 0000000..a610499
--- /dev/null
+++ b/src/internal/reflectlite/set_test.go
@@ -0,0 +1,101 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package reflectlite_test
+
+import (
+ "bytes"
+ "go/ast"
+ "go/token"
+ . "internal/reflectlite"
+ "io"
+ "testing"
+)
+
+func TestImplicitSetConversion(t *testing.T) {
+ // Assume TestImplicitMapConversion covered the basics.
+ // Just make sure conversions are being applied at all.
+ var r io.Reader
+ b := new(bytes.Buffer)
+ rv := ValueOf(&r).Elem()
+ rv.Set(ValueOf(b))
+ if r != b {
+ t.Errorf("after Set: r=%T(%v)", r, r)
+ }
+}
+
+var implementsTests = []struct {
+ x interface{}
+ t interface{}
+ b bool
+}{
+ {new(*bytes.Buffer), new(io.Reader), true},
+ {new(bytes.Buffer), new(io.Reader), false},
+ {new(*bytes.Buffer), new(io.ReaderAt), false},
+ {new(*ast.Ident), new(ast.Expr), true},
+ {new(*notAnExpr), new(ast.Expr), false},
+ {new(*ast.Ident), new(notASTExpr), false},
+ {new(notASTExpr), new(ast.Expr), false},
+ {new(ast.Expr), new(notASTExpr), false},
+ {new(*notAnExpr), new(notASTExpr), true},
+ {new(mapError), new(error), true},
+ {new(*mapError), new(error), true},
+}
+
+type notAnExpr struct{}
+
+func (notAnExpr) Pos() token.Pos { return token.NoPos }
+func (notAnExpr) End() token.Pos { return token.NoPos }
+func (notAnExpr) exprNode() {}
+
+type notASTExpr interface {
+ Pos() token.Pos
+ End() token.Pos
+ exprNode()
+}
+
+type mapError map[string]string
+
+func (mapError) Error() string { return "mapError" }
+
+var _ error = mapError{}
+var _ error = new(mapError)
+
+func TestImplements(t *testing.T) {
+ for _, tt := range implementsTests {
+ xv := TypeOf(tt.x).Elem()
+ xt := TypeOf(tt.t).Elem()
+ if b := xv.Implements(xt); b != tt.b {
+ t.Errorf("(%s).Implements(%s) = %v, want %v", TypeString(xv), TypeString(xt), b, tt.b)
+ }
+ }
+}
+
+var assignableTests = []struct {
+ x interface{}
+ t interface{}
+ b bool
+}{
+ {new(chan int), new(<-chan int), true},
+ {new(<-chan int), new(chan int), false},
+ {new(*int), new(IntPtr), true},
+ {new(IntPtr), new(*int), true},
+ {new(IntPtr), new(IntPtr1), false},
+ {new(Ch), new(<-chan interface{}), true},
+ // test runs implementsTests too
+}
+
+type IntPtr *int
+type IntPtr1 *int
+type Ch <-chan interface{}
+
+func TestAssignableTo(t *testing.T) {
+ for i, tt := range append(assignableTests, implementsTests...) {
+ xv := TypeOf(tt.x).Elem()
+ xt := TypeOf(tt.t).Elem()
+ if b := xv.AssignableTo(xt); b != tt.b {
+ t.Errorf("%d:AssignableTo: got %v, want %v", i, b, tt.b)
+ }
+ }
+}