Imported Upstream version 2012.01.27upstream-weekly/2012.01.27

1 files changed, 232 insertions, 0 deletions

diff --git a/src/cmd/gofix/error_test.go b/src/cmd/gofix/error_test.go
new file mode 100644
index 000000000..eeab7e2ee
--- /dev/null
+++ b/src/cmd/gofix/error_test.go
@@ -0,0 +1,232 @@
+// 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 main
+
+func init() {
+	addTestCases(errorTests, errorFn)
+}
+
+var errorTests = []testCase{
+	{
+		Name: "error.0",
+		In: `package main
+
+func error() {}
+
+var error int
+`,
+		Out: `package main
+
+func error() {}
+
+var error int
+`,
+	},
+	{
+		Name: "error.1",
+		In: `package main
+
+import "os"
+
+func f() os.Error {
+	return os.EOF
+}
+
+func error() {}
+
+var error int
+
+func g() {
+	error := 1
+	_ = error
+}
+`,
+		Out: `package main
+
+import "io"
+
+func f() error {
+	return io.EOF
+}
+
+func error_() {}
+
+var error_ int
+
+func g() {
+	error := 1
+	_ = error
+}
+`,
+	},
+	{
+		Name: "error.2",
+		In: `package main
+
+import "os"
+
+func f() os.Error {
+	return os.EOF
+}
+
+func g() string {
+	// these all convert because f is known
+	if err := f(); err != nil {
+		return err.String()
+	}
+	if err1 := f(); err1 != nil {
+		return err1.String()
+	}
+	if e := f(); e != nil {
+		return e.String()
+	}
+	if x := f(); x != nil {
+		return x.String()
+	}
+
+	// only the error names (err, err1, e) convert; u is not known
+	if err := u(); err != nil {
+		return err.String()
+	}
+	if err1 := u(); err1 != nil {
+		return err1.String()
+	}
+	if e := u(); e != nil {
+		return e.String()
+	}
+	if x := u(); x != nil {
+		return x.String()
+	}
+	return ""
+}
+
+type T int
+
+func (t T) String() string { return "t" }
+
+type PT int
+
+func (p *PT) String() string { return "pt" }
+
+type MyError int
+
+func (t MyError) String() string { return "myerror" }
+
+type PMyError int
+
+func (p *PMyError) String() string { return "pmyerror" }
+
+func error() {}
+
+var error int
+`,
+		Out: `package main
+
+import "io"
+
+func f() error {
+	return io.EOF
+}
+
+func g() string {
+	// these all convert because f is known
+	if err := f(); err != nil {
+		return err.Error()
+	}
+	if err1 := f(); err1 != nil {
+		return err1.Error()
+	}
+	if e := f(); e != nil {
+		return e.Error()
+	}
+	if x := f(); x != nil {
+		return x.Error()
+	}
+
+	// only the error names (err, err1, e) convert; u is not known
+	if err := u(); err != nil {
+		return err.Error()
+	}
+	if err1 := u(); err1 != nil {
+		return err1.Error()
+	}
+	if e := u(); e != nil {
+		return e.Error()
+	}
+	if x := u(); x != nil {
+		return x.String()
+	}
+	return ""
+}
+
+type T int
+
+func (t T) String() string { return "t" }
+
+type PT int
+
+func (p *PT) String() string { return "pt" }
+
+type MyError int
+
+func (t MyError) Error() string { return "myerror" }
+
+type PMyError int
+
+func (p *PMyError) Error() string { return "pmyerror" }
+
+func error_() {}
+
+var error_ int
+`,
+	},
+	{
+		Name: "error.3",
+		In: `package main
+
+import "os"
+
+func f() os.Error {
+	return os.EOF
+}
+
+type PathError struct {
+	Name  string
+	Error os.Error
+}
+
+func (p *PathError) String() string {
+	return p.Name + ": " + p.Error.String()
+}
+
+func (p *PathError) Error1() string {
+	p = &PathError{Error: nil}
+	return fmt.Sprint(p.Name, ": ", p.Error)
+}
+`,
+		Out: `package main
+
+import "io"
+
+func f() error {
+	return io.EOF
+}
+
+type PathError struct {
+	Name string
+	Err  error
+}
+
+func (p *PathError) Error() string {
+	return p.Name + ": " + p.Err.Error()
+}
+
+func (p *PathError) Error1() string {
+	p = &PathError{Err: nil}
+	return fmt.Sprint(p.Name, ": ", p.Err)
+}
+`,
+	},
+}