diff options
Diffstat (limited to 'gcc-4.8.1/libgo/go/text/template/exec_test.go')
| -rw-r--r-- | gcc-4.8.1/libgo/go/text/template/exec_test.go | 818 |
1 files changed, 0 insertions, 818 deletions
diff --git a/gcc-4.8.1/libgo/go/text/template/exec_test.go b/gcc-4.8.1/libgo/go/text/template/exec_test.go deleted file mode 100644 index 683e9ac76..000000000 --- a/gcc-4.8.1/libgo/go/text/template/exec_test.go +++ /dev/null @@ -1,818 +0,0 @@ -// 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 template - -import ( - "bytes" - "errors" - "flag" - "fmt" - "reflect" - "strings" - "testing" -) - -var debug = flag.Bool("debug", false, "show the errors produced by the tests") - -// T has lots of interesting pieces to use to test execution. -type T struct { - // Basics - True bool - I int - U16 uint16 - X string - FloatZero float64 - ComplexZero float64 - // Nested structs. - U *U - // Struct with String method. - V0 V - V1, V2 *V - // Struct with Error method. - W0 W - W1, W2 *W - // Slices - SI []int - SIEmpty []int - SB []bool - // Maps - MSI map[string]int - MSIone map[string]int // one element, for deterministic output - MSIEmpty map[string]int - MXI map[interface{}]int - MII map[int]int - SMSI []map[string]int - // Empty interfaces; used to see if we can dig inside one. - Empty0 interface{} // nil - Empty1 interface{} - Empty2 interface{} - Empty3 interface{} - Empty4 interface{} - // Non-empty interface. - NonEmptyInterface I - // Stringer. - Str fmt.Stringer - Err error - // Pointers - PI *int - PSI *[]int - NIL *int - // Function (not method) - BinaryFunc func(string, string) string - VariadicFunc func(...string) string - VariadicFuncInt func(int, ...string) string - NilOKFunc func(*int) bool - // Template to test evaluation of templates. - Tmpl *Template - // Unexported field; cannot be accessed by template. - unexported int -} - -type U struct { - V string -} - -type V struct { - j int -} - -func (v *V) String() string { - if v == nil { - return "nilV" - } - return fmt.Sprintf("<%d>", v.j) -} - -type W struct { - k int -} - -func (w *W) Error() string { - if w == nil { - return "nilW" - } - return fmt.Sprintf("[%d]", w.k) -} - -var tVal = &T{ - True: true, - I: 17, - U16: 16, - X: "x", - U: &U{"v"}, - V0: V{6666}, - V1: &V{7777}, // leave V2 as nil - W0: W{888}, - W1: &W{999}, // leave W2 as nil - SI: []int{3, 4, 5}, - SB: []bool{true, false}, - MSI: map[string]int{"one": 1, "two": 2, "three": 3}, - MSIone: map[string]int{"one": 1}, - MXI: map[interface{}]int{"one": 1}, - MII: map[int]int{1: 1}, - SMSI: []map[string]int{ - {"one": 1, "two": 2}, - {"eleven": 11, "twelve": 12}, - }, - Empty1: 3, - Empty2: "empty2", - Empty3: []int{7, 8}, - Empty4: &U{"UinEmpty"}, - NonEmptyInterface: new(T), - Str: bytes.NewBuffer([]byte("foozle")), - Err: errors.New("erroozle"), - PI: newInt(23), - PSI: newIntSlice(21, 22, 23), - BinaryFunc: func(a, b string) string { return fmt.Sprintf("[%s=%s]", a, b) }, - VariadicFunc: func(s ...string) string { return fmt.Sprint("<", strings.Join(s, "+"), ">") }, - VariadicFuncInt: func(a int, s ...string) string { return fmt.Sprint(a, "=<", strings.Join(s, "+"), ">") }, - NilOKFunc: func(s *int) bool { return s == nil }, - Tmpl: Must(New("x").Parse("test template")), // "x" is the value of .X -} - -// A non-empty interface. -type I interface { - Method0() string -} - -var iVal I = tVal - -// Helpers for creation. -func newInt(n int) *int { - p := new(int) - *p = n - return p -} - -func newIntSlice(n ...int) *[]int { - p := new([]int) - *p = make([]int, len(n)) - copy(*p, n) - return p -} - -// Simple methods with and without arguments. -func (t *T) Method0() string { - return "M0" -} - -func (t *T) Method1(a int) int { - return a -} - -func (t *T) Method2(a uint16, b string) string { - return fmt.Sprintf("Method2: %d %s", a, b) -} - -func (t *T) Method3(v interface{}) string { - return fmt.Sprintf("Method3: %v", v) -} - -func (t *T) MAdd(a int, b []int) []int { - v := make([]int, len(b)) - for i, x := range b { - v[i] = x + a - } - return v -} - -var myError = errors.New("my error") - -// MyError returns a value and an error according to its argument. -func (t *T) MyError(error bool) (bool, error) { - if error { - return true, myError - } - return false, nil -} - -// A few methods to test chaining. -func (t *T) GetU() *U { - return t.U -} - -func (u *U) TrueFalse(b bool) string { - if b { - return "true" - } - return "" -} - -func typeOf(arg interface{}) string { - return fmt.Sprintf("%T", arg) -} - -type execTest struct { - name string - input string - output string - data interface{} - ok bool -} - -// bigInt and bigUint are hex string representing numbers either side -// of the max int boundary. -// We do it this way so the test doesn't depend on ints being 32 bits. -var ( - bigInt = fmt.Sprintf("0x%x", int(1<<uint(reflect.TypeOf(0).Bits()-1)-1)) - bigUint = fmt.Sprintf("0x%x", uint(1<<uint(reflect.TypeOf(0).Bits()-1))) -) - -var execTests = []execTest{ - // Trivial cases. - {"empty", "", "", nil, true}, - {"text", "some text", "some text", nil, true}, - {"nil action", "{{nil}}", "", nil, false}, - - // Ideal constants. - {"ideal int", "{{typeOf 3}}", "int", 0, true}, - {"ideal float", "{{typeOf 1.0}}", "float64", 0, true}, - {"ideal exp float", "{{typeOf 1e1}}", "float64", 0, true}, - {"ideal complex", "{{typeOf 1i}}", "complex128", 0, true}, - {"ideal int", "{{typeOf " + bigInt + "}}", "int", 0, true}, - {"ideal too big", "{{typeOf " + bigUint + "}}", "", 0, false}, - {"ideal nil without type", "{{nil}}", "", 0, false}, - - // Fields of structs. - {".X", "-{{.X}}-", "-x-", tVal, true}, - {".U.V", "-{{.U.V}}-", "-v-", tVal, true}, - {".unexported", "{{.unexported}}", "", tVal, false}, - - // Fields on maps. - {"map .one", "{{.MSI.one}}", "1", tVal, true}, - {"map .two", "{{.MSI.two}}", "2", tVal, true}, - {"map .NO", "{{.MSI.NO}}", "<no value>", tVal, true}, - {"map .one interface", "{{.MXI.one}}", "1", tVal, true}, - {"map .WRONG args", "{{.MSI.one 1}}", "", tVal, false}, - {"map .WRONG type", "{{.MII.one}}", "", tVal, false}, - - // Dots of all kinds to test basic evaluation. - {"dot int", "<{{.}}>", "<13>", 13, true}, - {"dot uint", "<{{.}}>", "<14>", uint(14), true}, - {"dot float", "<{{.}}>", "<15.1>", 15.1, true}, - {"dot bool", "<{{.}}>", "<true>", true, true}, - {"dot complex", "<{{.}}>", "<(16.2-17i)>", 16.2 - 17i, true}, - {"dot string", "<{{.}}>", "<hello>", "hello", true}, - {"dot slice", "<{{.}}>", "<[-1 -2 -3]>", []int{-1, -2, -3}, true}, - {"dot map", "<{{.}}>", "<map[two:22]>", map[string]int{"two": 22}, true}, - {"dot struct", "<{{.}}>", "<{7 seven}>", struct { - a int - b string - }{7, "seven"}, true}, - - // Variables. - {"$ int", "{{$}}", "123", 123, true}, - {"$.I", "{{$.I}}", "17", tVal, true}, - {"$.U.V", "{{$.U.V}}", "v", tVal, true}, - {"declare in action", "{{$x := $.U.V}}{{$x}}", "v", tVal, true}, - - // Type with String method. - {"V{6666}.String()", "-{{.V0}}-", "-<6666>-", tVal, true}, - {"&V{7777}.String()", "-{{.V1}}-", "-<7777>-", tVal, true}, - {"(*V)(nil).String()", "-{{.V2}}-", "-nilV-", tVal, true}, - - // Type with Error method. - {"W{888}.Error()", "-{{.W0}}-", "-[888]-", tVal, true}, - {"&W{999}.Error()", "-{{.W1}}-", "-[999]-", tVal, true}, - {"(*W)(nil).Error()", "-{{.W2}}-", "-nilW-", tVal, true}, - - // Pointers. - {"*int", "{{.PI}}", "23", tVal, true}, - {"*[]int", "{{.PSI}}", "[21 22 23]", tVal, true}, - {"*[]int[1]", "{{index .PSI 1}}", "22", tVal, true}, - {"NIL", "{{.NIL}}", "<nil>", tVal, true}, - - // Empty interfaces holding values. - {"empty nil", "{{.Empty0}}", "<no value>", tVal, true}, - {"empty with int", "{{.Empty1}}", "3", tVal, true}, - {"empty with string", "{{.Empty2}}", "empty2", tVal, true}, - {"empty with slice", "{{.Empty3}}", "[7 8]", tVal, true}, - {"empty with struct", "{{.Empty4}}", "{UinEmpty}", tVal, true}, - {"empty with struct, field", "{{.Empty4.V}}", "UinEmpty", tVal, true}, - - // Method calls. - {".Method0", "-{{.Method0}}-", "-M0-", tVal, true}, - {".Method1(1234)", "-{{.Method1 1234}}-", "-1234-", tVal, true}, - {".Method1(.I)", "-{{.Method1 .I}}-", "-17-", tVal, true}, - {".Method2(3, .X)", "-{{.Method2 3 .X}}-", "-Method2: 3 x-", tVal, true}, - {".Method2(.U16, `str`)", "-{{.Method2 .U16 `str`}}-", "-Method2: 16 str-", tVal, true}, - {".Method2(.U16, $x)", "{{if $x := .X}}-{{.Method2 .U16 $x}}{{end}}-", "-Method2: 16 x-", tVal, true}, - {".Method3(nil constant)", "-{{.Method3 nil}}-", "-Method3: <nil>-", tVal, true}, - {".Method3(nil value)", "-{{.Method3 .MXI.unset}}-", "-Method3: <nil>-", tVal, true}, - {"method on var", "{{if $x := .}}-{{$x.Method2 .U16 $x.X}}{{end}}-", "-Method2: 16 x-", tVal, true}, - {"method on chained var", - "{{range .MSIone}}{{if $.U.TrueFalse $.True}}{{$.U.TrueFalse $.True}}{{else}}WRONG{{end}}{{end}}", - "true", tVal, true}, - {"chained method", - "{{range .MSIone}}{{if $.GetU.TrueFalse $.True}}{{$.U.TrueFalse $.True}}{{else}}WRONG{{end}}{{end}}", - "true", tVal, true}, - {"chained method on variable", - "{{with $x := .}}{{with .SI}}{{$.GetU.TrueFalse $.True}}{{end}}{{end}}", - "true", tVal, true}, - {".NilOKFunc not nil", "{{call .NilOKFunc .PI}}", "false", tVal, true}, - {".NilOKFunc nil", "{{call .NilOKFunc nil}}", "true", tVal, true}, - - // Function call builtin. - {".BinaryFunc", "{{call .BinaryFunc `1` `2`}}", "[1=2]", tVal, true}, - {".VariadicFunc0", "{{call .VariadicFunc}}", "<>", tVal, true}, - {".VariadicFunc2", "{{call .VariadicFunc `he` `llo`}}", "<he+llo>", tVal, true}, - {".VariadicFuncInt", "{{call .VariadicFuncInt 33 `he` `llo`}}", "33=<he+llo>", tVal, true}, - {"if .BinaryFunc call", "{{ if .BinaryFunc}}{{call .BinaryFunc `1` `2`}}{{end}}", "[1=2]", tVal, true}, - {"if not .BinaryFunc call", "{{ if not .BinaryFunc}}{{call .BinaryFunc `1` `2`}}{{else}}No{{end}}", "No", tVal, true}, - {"Interface Call", `{{stringer .S}}`, "foozle", map[string]interface{}{"S": bytes.NewBufferString("foozle")}, true}, - - // Erroneous function calls (check args). - {".BinaryFuncTooFew", "{{call .BinaryFunc `1`}}", "", tVal, false}, - {".BinaryFuncTooMany", "{{call .BinaryFunc `1` `2` `3`}}", "", tVal, false}, - {".BinaryFuncBad0", "{{call .BinaryFunc 1 3}}", "", tVal, false}, - {".BinaryFuncBad1", "{{call .BinaryFunc `1` 3}}", "", tVal, false}, - {".VariadicFuncBad0", "{{call .VariadicFunc 3}}", "", tVal, false}, - {".VariadicFuncIntBad0", "{{call .VariadicFuncInt}}", "", tVal, false}, - {".VariadicFuncIntBad`", "{{call .VariadicFuncInt `x`}}", "", tVal, false}, - {".VariadicFuncNilBad", "{{call .VariadicFunc nil}}", "", tVal, false}, - - // Pipelines. - {"pipeline", "-{{.Method0 | .Method2 .U16}}-", "-Method2: 16 M0-", tVal, true}, - {"pipeline func", "-{{call .VariadicFunc `llo` | call .VariadicFunc `he` }}-", "-<he+<llo>>-", tVal, true}, - - // Parenthesized expressions - {"parens in pipeline", "{{printf `%d %d %d` (1) (2 | add 3) (add 4 (add 5 6))}}", "1 5 15", tVal, true}, - - // Parenthesized expressions with field accesses - {"parens: $ in paren", "{{($).X}}", "x", tVal, true}, - {"parens: $.GetU in paren", "{{($.GetU).V}}", "v", tVal, true}, - {"parens: $ in paren in pipe", "{{($ | echo).X}}", "x", tVal, true}, - {"parens: spaces and args", `{{(makemap "up" "down" "left" "right").left}}`, "right", tVal, true}, - - // If. - {"if true", "{{if true}}TRUE{{end}}", "TRUE", tVal, true}, - {"if false", "{{if false}}TRUE{{else}}FALSE{{end}}", "FALSE", tVal, true}, - {"if nil", "{{if nil}}TRUE{{end}}", "", tVal, false}, - {"if 1", "{{if 1}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true}, - {"if 0", "{{if 0}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"if 1.5", "{{if 1.5}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true}, - {"if 0.0", "{{if .FloatZero}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"if 1.5i", "{{if 1.5i}}NON-ZERO{{else}}ZERO{{end}}", "NON-ZERO", tVal, true}, - {"if 0.0i", "{{if .ComplexZero}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"if emptystring", "{{if ``}}NON-EMPTY{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"if string", "{{if `notempty`}}NON-EMPTY{{else}}EMPTY{{end}}", "NON-EMPTY", tVal, true}, - {"if emptyslice", "{{if .SIEmpty}}NON-EMPTY{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"if slice", "{{if .SI}}NON-EMPTY{{else}}EMPTY{{end}}", "NON-EMPTY", tVal, true}, - {"if emptymap", "{{if .MSIEmpty}}NON-EMPTY{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"if map", "{{if .MSI}}NON-EMPTY{{else}}EMPTY{{end}}", "NON-EMPTY", tVal, true}, - {"if map unset", "{{if .MXI.none}}NON-ZERO{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"if map not unset", "{{if not .MXI.none}}ZERO{{else}}NON-ZERO{{end}}", "ZERO", tVal, true}, - {"if $x with $y int", "{{if $x := true}}{{with $y := .I}}{{$x}},{{$y}}{{end}}{{end}}", "true,17", tVal, true}, - {"if $x with $x int", "{{if $x := true}}{{with $x := .I}}{{$x}},{{end}}{{$x}}{{end}}", "17,true", tVal, true}, - - // Print etc. - {"print", `{{print "hello, print"}}`, "hello, print", tVal, true}, - {"print 123", `{{print 1 2 3}}`, "1 2 3", tVal, true}, - {"print nil", `{{print nil}}`, "<nil>", tVal, true}, - {"println", `{{println 1 2 3}}`, "1 2 3\n", tVal, true}, - {"printf int", `{{printf "%04x" 127}}`, "007f", tVal, true}, - {"printf float", `{{printf "%g" 3.5}}`, "3.5", tVal, true}, - {"printf complex", `{{printf "%g" 1+7i}}`, "(1+7i)", tVal, true}, - {"printf string", `{{printf "%s" "hello"}}`, "hello", tVal, true}, - {"printf function", `{{printf "%#q" zeroArgs}}`, "`zeroArgs`", tVal, true}, - {"printf field", `{{printf "%s" .U.V}}`, "v", tVal, true}, - {"printf method", `{{printf "%s" .Method0}}`, "M0", tVal, true}, - {"printf dot", `{{with .I}}{{printf "%d" .}}{{end}}`, "17", tVal, true}, - {"printf var", `{{with $x := .I}}{{printf "%d" $x}}{{end}}`, "17", tVal, true}, - {"printf lots", `{{printf "%d %s %g %s" 127 "hello" 7-3i .Method0}}`, "127 hello (7-3i) M0", tVal, true}, - - // HTML. - {"html", `{{html "<script>alert(\"XSS\");</script>"}}`, - "<script>alert("XSS");</script>", nil, true}, - {"html pipeline", `{{printf "<script>alert(\"XSS\");</script>" | html}}`, - "<script>alert("XSS");</script>", nil, true}, - - // JavaScript. - {"js", `{{js .}}`, `It\'d be nice.`, `It'd be nice.`, true}, - - // URL query. - {"urlquery", `{{"http://www.example.org/"|urlquery}}`, "http%3A%2F%2Fwww.example.org%2F", nil, true}, - - // Booleans - {"not", "{{not true}} {{not false}}", "false true", nil, true}, - {"and", "{{and false 0}} {{and 1 0}} {{and 0 true}} {{and 1 1}}", "false 0 0 1", nil, true}, - {"or", "{{or 0 0}} {{or 1 0}} {{or 0 true}} {{or 1 1}}", "0 1 true 1", nil, true}, - {"boolean if", "{{if and true 1 `hi`}}TRUE{{else}}FALSE{{end}}", "TRUE", tVal, true}, - {"boolean if not", "{{if and true 1 `hi` | not}}TRUE{{else}}FALSE{{end}}", "FALSE", nil, true}, - - // Indexing. - {"slice[0]", "{{index .SI 0}}", "3", tVal, true}, - {"slice[1]", "{{index .SI 1}}", "4", tVal, true}, - {"slice[HUGE]", "{{index .SI 10}}", "", tVal, false}, - {"slice[WRONG]", "{{index .SI `hello`}}", "", tVal, false}, - {"map[one]", "{{index .MSI `one`}}", "1", tVal, true}, - {"map[two]", "{{index .MSI `two`}}", "2", tVal, true}, - {"map[NO]", "{{index .MSI `XXX`}}", "0", tVal, true}, - {"map[nil]", "{{index .MSI nil}}", "0", tVal, true}, - {"map[WRONG]", "{{index .MSI 10}}", "", tVal, false}, - {"double index", "{{index .SMSI 1 `eleven`}}", "11", tVal, true}, - - // Len. - {"slice", "{{len .SI}}", "3", tVal, true}, - {"map", "{{len .MSI }}", "3", tVal, true}, - {"len of int", "{{len 3}}", "", tVal, false}, - {"len of nothing", "{{len .Empty0}}", "", tVal, false}, - - // With. - {"with true", "{{with true}}{{.}}{{end}}", "true", tVal, true}, - {"with false", "{{with false}}{{.}}{{else}}FALSE{{end}}", "FALSE", tVal, true}, - {"with 1", "{{with 1}}{{.}}{{else}}ZERO{{end}}", "1", tVal, true}, - {"with 0", "{{with 0}}{{.}}{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"with 1.5", "{{with 1.5}}{{.}}{{else}}ZERO{{end}}", "1.5", tVal, true}, - {"with 0.0", "{{with .FloatZero}}{{.}}{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"with 1.5i", "{{with 1.5i}}{{.}}{{else}}ZERO{{end}}", "(0+1.5i)", tVal, true}, - {"with 0.0i", "{{with .ComplexZero}}{{.}}{{else}}ZERO{{end}}", "ZERO", tVal, true}, - {"with emptystring", "{{with ``}}{{.}}{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"with string", "{{with `notempty`}}{{.}}{{else}}EMPTY{{end}}", "notempty", tVal, true}, - {"with emptyslice", "{{with .SIEmpty}}{{.}}{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"with slice", "{{with .SI}}{{.}}{{else}}EMPTY{{end}}", "[3 4 5]", tVal, true}, - {"with emptymap", "{{with .MSIEmpty}}{{.}}{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"with map", "{{with .MSIone}}{{.}}{{else}}EMPTY{{end}}", "map[one:1]", tVal, true}, - {"with empty interface, struct field", "{{with .Empty4}}{{.V}}{{end}}", "UinEmpty", tVal, true}, - {"with $x int", "{{with $x := .I}}{{$x}}{{end}}", "17", tVal, true}, - {"with $x struct.U.V", "{{with $x := $}}{{$x.U.V}}{{end}}", "v", tVal, true}, - {"with variable and action", "{{with $x := $}}{{$y := $.U.V}}{{$y}}{{end}}", "v", tVal, true}, - - // Range. - {"range []int", "{{range .SI}}-{{.}}-{{end}}", "-3--4--5-", tVal, true}, - {"range empty no else", "{{range .SIEmpty}}-{{.}}-{{end}}", "", tVal, true}, - {"range []int else", "{{range .SI}}-{{.}}-{{else}}EMPTY{{end}}", "-3--4--5-", tVal, true}, - {"range empty else", "{{range .SIEmpty}}-{{.}}-{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"range []bool", "{{range .SB}}-{{.}}-{{end}}", "-true--false-", tVal, true}, - {"range []int method", "{{range .SI | .MAdd .I}}-{{.}}-{{end}}", "-20--21--22-", tVal, true}, - {"range map", "{{range .MSI}}-{{.}}-{{end}}", "-1--3--2-", tVal, true}, - {"range empty map no else", "{{range .MSIEmpty}}-{{.}}-{{end}}", "", tVal, true}, - {"range map else", "{{range .MSI}}-{{.}}-{{else}}EMPTY{{end}}", "-1--3--2-", tVal, true}, - {"range empty map else", "{{range .MSIEmpty}}-{{.}}-{{else}}EMPTY{{end}}", "EMPTY", tVal, true}, - {"range empty interface", "{{range .Empty3}}-{{.}}-{{else}}EMPTY{{end}}", "-7--8-", tVal, true}, - {"range empty nil", "{{range .Empty0}}-{{.}}-{{end}}", "", tVal, true}, - {"range $x SI", "{{range $x := .SI}}<{{$x}}>{{end}}", "<3><4><5>", tVal, true}, - {"range $x $y SI", "{{range $x, $y := .SI}}<{{$x}}={{$y}}>{{end}}", "<0=3><1=4><2=5>", tVal, true}, - {"range $x MSIone", "{{range $x := .MSIone}}<{{$x}}>{{end}}", "<1>", tVal, true}, - {"range $x $y MSIone", "{{range $x, $y := .MSIone}}<{{$x}}={{$y}}>{{end}}", "<one=1>", tVal, true}, - {"range $x PSI", "{{range $x := .PSI}}<{{$x}}>{{end}}", "<21><22><23>", tVal, true}, - {"declare in range", "{{range $x := .PSI}}<{{$foo:=$x}}{{$x}}>{{end}}", "<21><22><23>", tVal, true}, - {"range count", `{{range $i, $x := count 5}}[{{$i}}]{{$x}}{{end}}`, "[0]a[1]b[2]c[3]d[4]e", tVal, true}, - {"range nil count", `{{range $i, $x := count 0}}{{else}}empty{{end}}`, "empty", tVal, true}, - - // Cute examples. - {"or as if true", `{{or .SI "slice is empty"}}`, "[3 4 5]", tVal, true}, - {"or as if false", `{{or .SIEmpty "slice is empty"}}`, "slice is empty", tVal, true}, - - // Error handling. - {"error method, error", "{{.MyError true}}", "", tVal, false}, - {"error method, no error", "{{.MyError false}}", "false", tVal, true}, - - // Fixed bugs. - // Must separate dot and receiver; otherwise args are evaluated with dot set to variable. - {"bug0", "{{range .MSIone}}{{if $.Method1 .}}X{{end}}{{end}}", "X", tVal, true}, - // Do not loop endlessly in indirect for non-empty interfaces. - // The bug appears with *interface only; looped forever. - {"bug1", "{{.Method0}}", "M0", &iVal, true}, - // Was taking address of interface field, so method set was empty. - {"bug2", "{{$.NonEmptyInterface.Method0}}", "M0", tVal, true}, - // Struct values were not legal in with - mere oversight. - {"bug3", "{{with $}}{{.Method0}}{{end}}", "M0", tVal, true}, - // Nil interface values in if. - {"bug4", "{{if .Empty0}}non-nil{{else}}nil{{end}}", "nil", tVal, true}, - // Stringer. - {"bug5", "{{.Str}}", "foozle", tVal, true}, - {"bug5a", "{{.Err}}", "erroozle", tVal, true}, - // Args need to be indirected and dereferenced sometimes. - {"bug6a", "{{vfunc .V0 .V1}}", "vfunc", tVal, true}, - {"bug6b", "{{vfunc .V0 .V0}}", "vfunc", tVal, true}, - {"bug6c", "{{vfunc .V1 .V0}}", "vfunc", tVal, true}, - {"bug6d", "{{vfunc .V1 .V1}}", "vfunc", tVal, true}, - // Legal parse but illegal execution: non-function should have no arguments. - {"bug7a", "{{3 2}}", "", tVal, false}, - {"bug7b", "{{$x := 1}}{{$x 2}}", "", tVal, false}, - {"bug7c", "{{$x := 1}}{{3 | $x}}", "", tVal, false}, - // Pipelined arg was not being type-checked. - {"bug8a", "{{3|oneArg}}", "", tVal, false}, - {"bug8b", "{{4|dddArg 3}}", "", tVal, false}, - // A bug was introduced that broke map lookups for lower-case names. - {"bug9", "{{.cause}}", "neglect", map[string]string{"cause": "neglect"}, true}, -} - -func zeroArgs() string { - return "zeroArgs" -} - -func oneArg(a string) string { - return "oneArg=" + a -} - -func dddArg(a int, b ...string) string { - return fmt.Sprintln(a, b) -} - -// count returns a channel that will deliver n sequential 1-letter strings starting at "a" -func count(n int) chan string { - if n == 0 { - return nil - } - c := make(chan string) - go func() { - for i := 0; i < n; i++ { - c <- "abcdefghijklmnop"[i : i+1] - } - close(c) - }() - return c -} - -// vfunc takes a *V and a V -func vfunc(V, *V) string { - return "vfunc" -} - -func add(args ...int) int { - sum := 0 - for _, x := range args { - sum += x - } - return sum -} - -func echo(arg interface{}) interface{} { - return arg -} - -func makemap(arg ...string) map[string]string { - if len(arg)%2 != 0 { - panic("bad makemap") - } - m := make(map[string]string) - for i := 0; i < len(arg); i += 2 { - m[arg[i]] = arg[i+1] - } - return m -} - -func stringer(s fmt.Stringer) string { - return s.String() -} - -func testExecute(execTests []execTest, template *Template, t *testing.T) { - b := new(bytes.Buffer) - funcs := FuncMap{ - "add": add, - "count": count, - "dddArg": dddArg, - "echo": echo, - "makemap": makemap, - "oneArg": oneArg, - "typeOf": typeOf, - "vfunc": vfunc, - "zeroArgs": zeroArgs, - "stringer": stringer, - } - for _, test := range execTests { - var tmpl *Template - var err error - if template == nil { - tmpl, err = New(test.name).Funcs(funcs).Parse(test.input) - } else { - tmpl, err = template.New(test.name).Funcs(funcs).Parse(test.input) - } - if err != nil { - t.Errorf("%s: parse error: %s", test.name, err) - continue - } - b.Reset() - err = tmpl.Execute(b, test.data) - switch { - case !test.ok && err == nil: - t.Errorf("%s: expected error; got none", test.name) - continue - case test.ok && err != nil: - t.Errorf("%s: unexpected execute error: %s", test.name, err) - continue - case !test.ok && err != nil: - // expected error, got one - if *debug { - fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err) - } - } - result := b.String() - if result != test.output { - t.Errorf("%s: expected\n\t%q\ngot\n\t%q", test.name, test.output, result) - } - } -} - -func TestExecute(t *testing.T) { - testExecute(execTests, nil, t) -} - -var delimPairs = []string{ - "", "", // default - "{{", "}}", // same as default - "<<", ">>", // distinct - "|", "|", // same - "(日)", "(本)", // peculiar -} - -func TestDelims(t *testing.T) { - const hello = "Hello, world" - var value = struct{ Str string }{hello} - for i := 0; i < len(delimPairs); i += 2 { - text := ".Str" - left := delimPairs[i+0] - trueLeft := left - right := delimPairs[i+1] - trueRight := right - if left == "" { // default case - trueLeft = "{{" - } - if right == "" { // default case - trueRight = "}}" - } - text = trueLeft + text + trueRight - // Now add a comment - text += trueLeft + "/*comment*/" + trueRight - // Now add an action containing a string. - text += trueLeft + `"` + trueLeft + `"` + trueRight - // At this point text looks like `{{.Str}}{{/*comment*/}}{{"{{"}}`. - tmpl, err := New("delims").Delims(left, right).Parse(text) - if err != nil { - t.Fatalf("delim %q text %q parse err %s", left, text, err) - } - var b = new(bytes.Buffer) - err = tmpl.Execute(b, value) - if err != nil { - t.Fatalf("delim %q exec err %s", left, err) - } - if b.String() != hello+trueLeft { - t.Errorf("expected %q got %q", hello+trueLeft, b.String()) - } - } -} - -// Check that an error from a method flows back to the top. -func TestExecuteError(t *testing.T) { - b := new(bytes.Buffer) - tmpl := New("error") - _, err := tmpl.Parse("{{.MyError true}}") - if err != nil { - t.Fatalf("parse error: %s", err) - } - err = tmpl.Execute(b, tVal) - if err == nil { - t.Errorf("expected error; got none") - } else if !strings.Contains(err.Error(), myError.Error()) { - if *debug { - fmt.Printf("test execute error: %s\n", err) - } - t.Errorf("expected myError; got %s", err) - } -} - -const execErrorText = `line 1 -line 2 -line 3 -{{template "one" .}} -{{define "one"}}{{template "two" .}}{{end}} -{{define "two"}}{{template "three" .}}{{end}} -{{define "three"}}{{index "hi" $}}{{end}}` - -// Check that an error from a nested template contains all the relevant information. -func TestExecError(t *testing.T) { - tmpl, err := New("top").Parse(execErrorText) - if err != nil { - t.Fatal("parse error:", err) - } - var b bytes.Buffer - err = tmpl.Execute(&b, 5) // 5 is out of range indexing "hi" - if err == nil { - t.Fatal("expected error") - } - const want = `template: top:7:20: executing "three" at <index "hi" $>: error calling index: index out of range: 5` - got := err.Error() - if got != want { - t.Errorf("expected\n%q\ngot\n%q", want, got) - } -} - -func TestJSEscaping(t *testing.T) { - testCases := []struct { - in, exp string - }{ - {`a`, `a`}, - {`'foo`, `\'foo`}, - {`Go "jump" \`, `Go \"jump\" \\`}, - {`Yukihiro says "今日は世界"`, `Yukihiro says \"今日は世界\"`}, - {"unprintable \uFDFF", `unprintable \uFDFF`}, - {`<html>`, `\x3Chtml\x3E`}, - } - for _, tc := range testCases { - s := JSEscapeString(tc.in) - if s != tc.exp { - t.Errorf("JS escaping [%s] got [%s] want [%s]", tc.in, s, tc.exp) - } - } -} - -// A nice example: walk a binary tree. - -type Tree struct { - Val int - Left, Right *Tree -} - -// Use different delimiters to test Set.Delims. -const treeTemplate = ` - (define "tree") - [ - (.Val) - (with .Left) - (template "tree" .) - (end) - (with .Right) - (template "tree" .) - (end) - ] - (end) -` - -func TestTree(t *testing.T) { - var tree = &Tree{ - 1, - &Tree{ - 2, &Tree{ - 3, - &Tree{ - 4, nil, nil, - }, - nil, - }, - &Tree{ - 5, - &Tree{ - 6, nil, nil, - }, - nil, - }, - }, - &Tree{ - 7, - &Tree{ - 8, - &Tree{ - 9, nil, nil, - }, - nil, - }, - &Tree{ - 10, - &Tree{ - 11, nil, nil, - }, - nil, - }, - }, - } - tmpl, err := New("root").Delims("(", ")").Parse(treeTemplate) - if err != nil { - t.Fatal("parse error:", err) - } - var b bytes.Buffer - stripSpace := func(r rune) rune { - if r == '\t' || r == '\n' { - return -1 - } - return r - } - const expect = "[1[2[3[4]][5[6]]][7[8[9]][10[11]]]]" - // First by looking up the template. - err = tmpl.Lookup("tree").Execute(&b, tree) - if err != nil { - t.Fatal("exec error:", err) - } - result := strings.Map(stripSpace, b.String()) - if result != expect { - t.Errorf("expected %q got %q", expect, result) - } - // Then direct to execution. - b.Reset() - err = tmpl.ExecuteTemplate(&b, "tree", tree) - if err != nil { - t.Fatal("exec error:", err) - } - result = strings.Map(stripSpace, b.String()) - if result != expect { - t.Errorf("expected %q got %q", expect, result) - } -} - -func TestExecuteOnNewTemplate(t *testing.T) { - // This is issue 3872. - _ = New("Name").Templates() -} |