diff options
Diffstat (limited to 'src/pkg/text/template/parse/parse_test.go')
| -rw-r--r-- | src/pkg/text/template/parse/parse_test.go | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/src/pkg/text/template/parse/parse_test.go b/src/pkg/text/template/parse/parse_test.go deleted file mode 100644 index ba1a18ec5..000000000 --- a/src/pkg/text/template/parse/parse_test.go +++ /dev/null @@ -1,420 +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 parse - -import ( - "flag" - "fmt" - "strings" - "testing" -) - -var debug = flag.Bool("debug", false, "show the errors produced by the main tests") - -type numberTest struct { - text string - isInt bool - isUint bool - isFloat bool - isComplex bool - int64 - uint64 - float64 - complex128 -} - -var numberTests = []numberTest{ - // basics - {"0", true, true, true, false, 0, 0, 0, 0}, - {"-0", true, true, true, false, 0, 0, 0, 0}, // check that -0 is a uint. - {"73", true, true, true, false, 73, 73, 73, 0}, - {"073", true, true, true, false, 073, 073, 073, 0}, - {"0x73", true, true, true, false, 0x73, 0x73, 0x73, 0}, - {"-73", true, false, true, false, -73, 0, -73, 0}, - {"+73", true, false, true, false, 73, 0, 73, 0}, - {"100", true, true, true, false, 100, 100, 100, 0}, - {"1e9", true, true, true, false, 1e9, 1e9, 1e9, 0}, - {"-1e9", true, false, true, false, -1e9, 0, -1e9, 0}, - {"-1.2", false, false, true, false, 0, 0, -1.2, 0}, - {"1e19", false, true, true, false, 0, 1e19, 1e19, 0}, - {"-1e19", false, false, true, false, 0, 0, -1e19, 0}, - {"4i", false, false, false, true, 0, 0, 0, 4i}, - {"-1.2+4.2i", false, false, false, true, 0, 0, 0, -1.2 + 4.2i}, - {"073i", false, false, false, true, 0, 0, 0, 73i}, // not octal! - // complex with 0 imaginary are float (and maybe integer) - {"0i", true, true, true, true, 0, 0, 0, 0}, - {"-1.2+0i", false, false, true, true, 0, 0, -1.2, -1.2}, - {"-12+0i", true, false, true, true, -12, 0, -12, -12}, - {"13+0i", true, true, true, true, 13, 13, 13, 13}, - // funny bases - {"0123", true, true, true, false, 0123, 0123, 0123, 0}, - {"-0x0", true, true, true, false, 0, 0, 0, 0}, - {"0xdeadbeef", true, true, true, false, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0}, - // character constants - {`'a'`, true, true, true, false, 'a', 'a', 'a', 0}, - {`'\n'`, true, true, true, false, '\n', '\n', '\n', 0}, - {`'\\'`, true, true, true, false, '\\', '\\', '\\', 0}, - {`'\''`, true, true, true, false, '\'', '\'', '\'', 0}, - {`'\xFF'`, true, true, true, false, 0xFF, 0xFF, 0xFF, 0}, - {`'パ'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0}, - {`'\u30d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0}, - {`'\U000030d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0}, - // some broken syntax - {text: "+-2"}, - {text: "0x123."}, - {text: "1e."}, - {text: "0xi."}, - {text: "1+2."}, - {text: "'x"}, - {text: "'xx'"}, -} - -func TestNumberParse(t *testing.T) { - for _, test := range numberTests { - // If fmt.Sscan thinks it's complex, it's complex. We can't trust the output - // because imaginary comes out as a number. - var c complex128 - typ := itemNumber - if test.text[0] == '\'' { - typ = itemCharConstant - } else { - _, err := fmt.Sscan(test.text, &c) - if err == nil { - typ = itemComplex - } - } - n, err := newNumber(0, test.text, typ) - ok := test.isInt || test.isUint || test.isFloat || test.isComplex - if ok && err != nil { - t.Errorf("unexpected error for %q: %s", test.text, err) - continue - } - if !ok && err == nil { - t.Errorf("expected error for %q", test.text) - continue - } - if !ok { - if *debug { - fmt.Printf("%s\n\t%s\n", test.text, err) - } - continue - } - if n.IsComplex != test.isComplex { - t.Errorf("complex incorrect for %q; should be %t", test.text, test.isComplex) - } - if test.isInt { - if !n.IsInt { - t.Errorf("expected integer for %q", test.text) - } - if n.Int64 != test.int64 { - t.Errorf("int64 for %q should be %d Is %d", test.text, test.int64, n.Int64) - } - } else if n.IsInt { - t.Errorf("did not expect integer for %q", test.text) - } - if test.isUint { - if !n.IsUint { - t.Errorf("expected unsigned integer for %q", test.text) - } - if n.Uint64 != test.uint64 { - t.Errorf("uint64 for %q should be %d Is %d", test.text, test.uint64, n.Uint64) - } - } else if n.IsUint { - t.Errorf("did not expect unsigned integer for %q", test.text) - } - if test.isFloat { - if !n.IsFloat { - t.Errorf("expected float for %q", test.text) - } - if n.Float64 != test.float64 { - t.Errorf("float64 for %q should be %g Is %g", test.text, test.float64, n.Float64) - } - } else if n.IsFloat { - t.Errorf("did not expect float for %q", test.text) - } - if test.isComplex { - if !n.IsComplex { - t.Errorf("expected complex for %q", test.text) - } - if n.Complex128 != test.complex128 { - t.Errorf("complex128 for %q should be %g Is %g", test.text, test.complex128, n.Complex128) - } - } else if n.IsComplex { - t.Errorf("did not expect complex for %q", test.text) - } - } -} - -type parseTest struct { - name string - input string - ok bool - result string // what the user would see in an error message. -} - -const ( - noError = true - hasError = false -) - -var parseTests = []parseTest{ - {"empty", "", noError, - ``}, - {"comment", "{{/*\n\n\n*/}}", noError, - ``}, - {"spaces", " \t\n", noError, - `" \t\n"`}, - {"text", "some text", noError, - `"some text"`}, - {"emptyAction", "{{}}", hasError, - `{{}}`}, - {"field", "{{.X}}", noError, - `{{.X}}`}, - {"simple command", "{{printf}}", noError, - `{{printf}}`}, - {"$ invocation", "{{$}}", noError, - "{{$}}"}, - {"variable invocation", "{{with $x := 3}}{{$x 23}}{{end}}", noError, - "{{with $x := 3}}{{$x 23}}{{end}}"}, - {"variable with fields", "{{$.I}}", noError, - "{{$.I}}"}, - {"multi-word command", "{{printf `%d` 23}}", noError, - "{{printf `%d` 23}}"}, - {"pipeline", "{{.X|.Y}}", noError, - `{{.X | .Y}}`}, - {"pipeline with decl", "{{$x := .X|.Y}}", noError, - `{{$x := .X | .Y}}`}, - {"nested pipeline", "{{.X (.Y .Z) (.A | .B .C) (.E)}}", noError, - `{{.X (.Y .Z) (.A | .B .C) (.E)}}`}, - {"field applied to parentheses", "{{(.Y .Z).Field}}", noError, - `{{(.Y .Z).Field}}`}, - {"simple if", "{{if .X}}hello{{end}}", noError, - `{{if .X}}"hello"{{end}}`}, - {"if with else", "{{if .X}}true{{else}}false{{end}}", noError, - `{{if .X}}"true"{{else}}"false"{{end}}`}, - {"if with else if", "{{if .X}}true{{else if .Y}}false{{end}}", noError, - `{{if .X}}"true"{{else}}{{if .Y}}"false"{{end}}{{end}}`}, - {"if else chain", "+{{if .X}}X{{else if .Y}}Y{{else if .Z}}Z{{end}}+", noError, - `"+"{{if .X}}"X"{{else}}{{if .Y}}"Y"{{else}}{{if .Z}}"Z"{{end}}{{end}}{{end}}"+"`}, - {"simple range", "{{range .X}}hello{{end}}", noError, - `{{range .X}}"hello"{{end}}`}, - {"chained field range", "{{range .X.Y.Z}}hello{{end}}", noError, - `{{range .X.Y.Z}}"hello"{{end}}`}, - {"nested range", "{{range .X}}hello{{range .Y}}goodbye{{end}}{{end}}", noError, - `{{range .X}}"hello"{{range .Y}}"goodbye"{{end}}{{end}}`}, - {"range with else", "{{range .X}}true{{else}}false{{end}}", noError, - `{{range .X}}"true"{{else}}"false"{{end}}`}, - {"range over pipeline", "{{range .X|.M}}true{{else}}false{{end}}", noError, - `{{range .X | .M}}"true"{{else}}"false"{{end}}`}, - {"range []int", "{{range .SI}}{{.}}{{end}}", noError, - `{{range .SI}}{{.}}{{end}}`}, - {"range 1 var", "{{range $x := .SI}}{{.}}{{end}}", noError, - `{{range $x := .SI}}{{.}}{{end}}`}, - {"range 2 vars", "{{range $x, $y := .SI}}{{.}}{{end}}", noError, - `{{range $x, $y := .SI}}{{.}}{{end}}`}, - {"constants", "{{range .SI 1 -3.2i true false 'a' nil}}{{end}}", noError, - `{{range .SI 1 -3.2i true false 'a' nil}}{{end}}`}, - {"template", "{{template `x`}}", noError, - `{{template "x"}}`}, - {"template with arg", "{{template `x` .Y}}", noError, - `{{template "x" .Y}}`}, - {"with", "{{with .X}}hello{{end}}", noError, - `{{with .X}}"hello"{{end}}`}, - {"with with else", "{{with .X}}hello{{else}}goodbye{{end}}", noError, - `{{with .X}}"hello"{{else}}"goodbye"{{end}}`}, - // Errors. - {"unclosed action", "hello{{range", hasError, ""}, - {"unmatched end", "{{end}}", hasError, ""}, - {"missing end", "hello{{range .x}}", hasError, ""}, - {"missing end after else", "hello{{range .x}}{{else}}", hasError, ""}, - {"undefined function", "hello{{undefined}}", hasError, ""}, - {"undefined variable", "{{$x}}", hasError, ""}, - {"variable undefined after end", "{{with $x := 4}}{{end}}{{$x}}", hasError, ""}, - {"variable undefined in template", "{{template $v}}", hasError, ""}, - {"declare with field", "{{with $x.Y := 4}}{{end}}", hasError, ""}, - {"template with field ref", "{{template .X}}", hasError, ""}, - {"template with var", "{{template $v}}", hasError, ""}, - {"invalid punctuation", "{{printf 3, 4}}", hasError, ""}, - {"multidecl outside range", "{{with $v, $u := 3}}{{end}}", hasError, ""}, - {"too many decls in range", "{{range $u, $v, $w := 3}}{{end}}", hasError, ""}, - {"dot applied to parentheses", "{{printf (printf .).}}", hasError, ""}, - {"adjacent args", "{{printf 3`x`}}", hasError, ""}, - {"adjacent args with .", "{{printf `x`.}}", hasError, ""}, - {"extra end after if", "{{if .X}}a{{else if .Y}}b{{end}}{{end}}", hasError, ""}, - // Equals (and other chars) do not assignments make (yet). - {"bug0a", "{{$x := 0}}{{$x}}", noError, "{{$x := 0}}{{$x}}"}, - {"bug0b", "{{$x = 1}}{{$x}}", hasError, ""}, - {"bug0c", "{{$x ! 2}}{{$x}}", hasError, ""}, - {"bug0d", "{{$x % 3}}{{$x}}", hasError, ""}, - // Check the parse fails for := rather than comma. - {"bug0e", "{{range $x := $y := 3}}{{end}}", hasError, ""}, - // Another bug: variable read must ignore following punctuation. - {"bug1a", "{{$x:=.}}{{$x!2}}", hasError, ""}, // ! is just illegal here. - {"bug1b", "{{$x:=.}}{{$x+2}}", hasError, ""}, // $x+2 should not parse as ($x) (+2). - {"bug1c", "{{$x:=.}}{{$x +2}}", noError, "{{$x := .}}{{$x +2}}"}, // It's OK with a space. -} - -var builtins = map[string]interface{}{ - "printf": fmt.Sprintf, -} - -func testParse(doCopy bool, t *testing.T) { - textFormat = "%q" - defer func() { textFormat = "%s" }() - for _, test := range parseTests { - tmpl, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree), builtins) - switch { - case err == nil && !test.ok: - t.Errorf("%q: expected error; got none", test.name) - continue - case err != nil && test.ok: - t.Errorf("%q: unexpected error: %v", test.name, err) - continue - case err != nil && !test.ok: - // expected error, got one - if *debug { - fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err) - } - continue - } - var result string - if doCopy { - result = tmpl.Root.Copy().String() - } else { - result = tmpl.Root.String() - } - if result != test.result { - t.Errorf("%s=(%q): got\n\t%v\nexpected\n\t%v", test.name, test.input, result, test.result) - } - } -} - -func TestParse(t *testing.T) { - testParse(false, t) -} - -// Same as TestParse, but we copy the node first -func TestParseCopy(t *testing.T) { - testParse(true, t) -} - -type isEmptyTest struct { - name string - input string - empty bool -} - -var isEmptyTests = []isEmptyTest{ - {"empty", ``, true}, - {"nonempty", `hello`, false}, - {"spaces only", " \t\n \t\n", true}, - {"definition", `{{define "x"}}something{{end}}`, true}, - {"definitions and space", "{{define `x`}}something{{end}}\n\n{{define `y`}}something{{end}}\n\n", true}, - {"definitions and text", "{{define `x`}}something{{end}}\nx\n{{define `y`}}something{{end}}\ny\n", false}, - {"definition and action", "{{define `x`}}something{{end}}{{if 3}}foo{{end}}", false}, -} - -func TestIsEmpty(t *testing.T) { - if !IsEmptyTree(nil) { - t.Errorf("nil tree is not empty") - } - for _, test := range isEmptyTests { - tree, err := New("root").Parse(test.input, "", "", make(map[string]*Tree), nil) - if err != nil { - t.Errorf("%q: unexpected error: %v", test.name, err) - continue - } - if empty := IsEmptyTree(tree.Root); empty != test.empty { - t.Errorf("%q: expected %t got %t", test.name, test.empty, empty) - } - } -} - -func TestErrorContextWithTreeCopy(t *testing.T) { - tree, err := New("root").Parse("{{if true}}{{end}}", "", "", make(map[string]*Tree), nil) - if err != nil { - t.Fatalf("unexpected tree parse failure: %v", err) - } - treeCopy := tree.Copy() - wantLocation, wantContext := tree.ErrorContext(tree.Root.Nodes[0]) - gotLocation, gotContext := treeCopy.ErrorContext(treeCopy.Root.Nodes[0]) - if wantLocation != gotLocation { - t.Errorf("wrong error location want %q got %q", wantLocation, gotLocation) - } - if wantContext != gotContext { - t.Errorf("wrong error location want %q got %q", wantContext, gotContext) - } -} - -// All failures, and the result is a string that must appear in the error message. -var errorTests = []parseTest{ - // Check line numbers are accurate. - {"unclosed1", - "line1\n{{", - hasError, `unclosed1:2: unexpected unclosed action in command`}, - {"unclosed2", - "line1\n{{define `x`}}line2\n{{", - hasError, `unclosed2:3: unexpected unclosed action in command`}, - // Specific errors. - {"function", - "{{foo}}", - hasError, `function "foo" not defined`}, - {"comment", - "{{/*}}", - hasError, `unclosed comment`}, - {"lparen", - "{{.X (1 2 3}}", - hasError, `unclosed left paren`}, - {"rparen", - "{{.X 1 2 3)}}", - hasError, `unexpected ")"`}, - {"space", - "{{`x`3}}", - hasError, `missing space?`}, - {"idchar", - "{{a#}}", - hasError, `'#'`}, - {"charconst", - "{{'a}}", - hasError, `unterminated character constant`}, - {"stringconst", - `{{"a}}`, - hasError, `unterminated quoted string`}, - {"rawstringconst", - "{{`a}}", - hasError, `unterminated raw quoted string`}, - {"number", - "{{0xi}}", - hasError, `number syntax`}, - {"multidefine", - "{{define `a`}}a{{end}}{{define `a`}}b{{end}}", - hasError, `multiple definition of template`}, - {"eof", - "{{range .X}}", - hasError, `unexpected EOF`}, - {"variable", - // Declare $x so it's defined, to avoid that error, and then check we don't parse a declaration. - "{{$x := 23}}{{with $x.y := 3}}{{$x 23}}{{end}}", - hasError, `unexpected ":="`}, - {"multidecl", - "{{$a,$b,$c := 23}}", - hasError, `too many declarations`}, - {"undefvar", - "{{$a}}", - hasError, `undefined variable`}, -} - -func TestErrors(t *testing.T) { - for _, test := range errorTests { - _, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree)) - if err == nil { - t.Errorf("%q: expected error", test.name) - continue - } - if !strings.Contains(err.Error(), test.result) { - t.Errorf("%q: error %q does not contain %q", test.name, err, test.result) - } - } -} |