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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [text/] [template/] [parse/] [parse_test.go] - Blame information for rev 747

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1 747 jeremybenn 
// Copyright 2011 The Go Authors. All rights reserved.
2 
// Use of this source code is governed by a BSD-style
3 
// license that can be found in the LICENSE file.
4 
 
5 
package parse
6 
 
7 
import (
8 
        "flag"
9 
        "fmt"
10 
        "testing"
11 
)
12 
 
13 
var debug = flag.Bool("debug", false, "show the errors produced by the tests")
14 
 
15 
type numberTest struct {
16 
        text      string
17 
        isInt     bool
18 
        isUint    bool
19 
        isFloat   bool
20 
        isComplex bool
21 
        int64
22 
        uint64
23 
        float64
24 
        complex128
25 
}
26 
 
27 
var numberTests = []numberTest{
28 
        // basics
29 
        {"0", true, true, true, false, 0, 0, 0, 0},
30 
        {"-0", true, true, true, false, 0, 0, 0, 0}, // check that -0 is a uint.
31 
        {"73", true, true, true, false, 73, 73, 73, 0},
32 
        {"073", true, true, true, false, 073, 073, 073, 0},
33 
        {"0x73", true, true, true, false, 0x73, 0x73, 0x73, 0},
34 
        {"-73", true, false, true, false, -73, 0, -73, 0},
35 
        {"+73", true, false, true, false, 73, 0, 73, 0},
36 
        {"100", true, true, true, false, 100, 100, 100, 0},
37 
        {"1e9", true, true, true, false, 1e9, 1e9, 1e9, 0},
38 
        {"-1e9", true, false, true, false, -1e9, 0, -1e9, 0},
39 
        {"-1.2", false, false, true, false, 0, 0, -1.2, 0},
40 
        {"1e19", false, true, true, false, 0, 1e19, 1e19, 0},
41 
        {"-1e19", false, false, true, false, 0, 0, -1e19, 0},
42 
        {"4i", false, false, false, true, 0, 0, 0, 4i},
43 
        {"-1.2+4.2i", false, false, false, true, 0, 0, 0, -1.2 + 4.2i},
44 
        {"073i", false, false, false, true, 0, 0, 0, 73i}, // not octal!
45 
        // complex with 0 imaginary are float (and maybe integer)
46 
        {"0i", true, true, true, true, 0, 0, 0, 0},
47 
        {"-1.2+0i", false, false, true, true, 0, 0, -1.2, -1.2},
48 
        {"-12+0i", true, false, true, true, -12, 0, -12, -12},
49 
        {"13+0i", true, true, true, true, 13, 13, 13, 13},
50 
        // funny bases
51 
        {"0123", true, true, true, false, 0123, 0123, 0123, 0},
52 
        {"-0x0", true, true, true, false, 0, 0, 0, 0},
53 
        {"0xdeadbeef", true, true, true, false, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0},
54 
        // character constants
55 
        {`'a'`, true, true, true, false, 'a', 'a', 'a', 0},
56 
        {`'\n'`, true, true, true, false, '\n', '\n', '\n', 0},
57 
        {`'\\'`, true, true, true, false, '\\', '\\', '\\', 0},
58 
        {`'\''`, true, true, true, false, '\'', '\'', '\'', 0},
59 
        {`'\xFF'`, true, true, true, false, 0xFF, 0xFF, 0xFF, 0},
60 
        {`'パ'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
61 
        {`'\u30d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
62 
        {`'\U000030d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
63 
        // some broken syntax
64 
        {text: "+-2"},
65 
        {text: "0x123."},
66 
        {text: "1e."},
67 
        {text: "0xi."},
68 
        {text: "1+2."},
69 
        {text: "'x"},
70 
        {text: "'xx'"},
71 
}
72 
 
73 
func TestNumberParse(t *testing.T) {
74 
        for _, test := range numberTests {
75 
                // If fmt.Sscan thinks it's complex, it's complex.  We can't trust the output
76 
                // because imaginary comes out as a number.
77 
                var c complex128
78 
                typ := itemNumber
79 
                if test.text[0] == '\'' {
80 
                        typ = itemCharConstant
81 
                } else {
82 
                        _, err := fmt.Sscan(test.text, &c)
83 
                        if err == nil {
84 
                                typ = itemComplex
85 
                        }
86 
                }
87 
                n, err := newNumber(test.text, typ)
88 
                ok := test.isInt || test.isUint || test.isFloat || test.isComplex
89 
                if ok && err != nil {
90 
                        t.Errorf("unexpected error for %q: %s", test.text, err)
91 
                        continue
92 
                }
93 
                if !ok && err == nil {
94 
                        t.Errorf("expected error for %q", test.text)
95 
                        continue
96 
                }
97 
                if !ok {
98 
                        if *debug {
99 
                                fmt.Printf("%s\n\t%s\n", test.text, err)
100 
                        }
101 
                        continue
102 
                }
103 
                if n.IsComplex != test.isComplex {
104 
                        t.Errorf("complex incorrect for %q; should be %t", test.text, test.isComplex)
105 
                }
106 
                if test.isInt {
107 
                        if !n.IsInt {
108 
                                t.Errorf("expected integer for %q", test.text)
109 
                        }
110 
                        if n.Int64 != test.int64 {
111 
                                t.Errorf("int64 for %q should be %d Is %d", test.text, test.int64, n.Int64)
112 
                        }
113 
                } else if n.IsInt {
114 
                        t.Errorf("did not expect integer for %q", test.text)
115 
                }
116 
                if test.isUint {
117 
                        if !n.IsUint {
118 
                                t.Errorf("expected unsigned integer for %q", test.text)
119 
                        }
120 
                        if n.Uint64 != test.uint64 {
121 
                                t.Errorf("uint64 for %q should be %d Is %d", test.text, test.uint64, n.Uint64)
122 
                        }
123 
                } else if n.IsUint {
124 
                        t.Errorf("did not expect unsigned integer for %q", test.text)
125 
                }
126 
                if test.isFloat {
127 
                        if !n.IsFloat {
128 
                                t.Errorf("expected float for %q", test.text)
129 
                        }
130 
                        if n.Float64 != test.float64 {
131 
                                t.Errorf("float64 for %q should be %g Is %g", test.text, test.float64, n.Float64)
132 
                        }
133 
                } else if n.IsFloat {
134 
                        t.Errorf("did not expect float for %q", test.text)
135 
                }
136 
                if test.isComplex {
137 
                        if !n.IsComplex {
138 
                                t.Errorf("expected complex for %q", test.text)
139 
                        }
140 
                        if n.Complex128 != test.complex128 {
141 
                                t.Errorf("complex128 for %q should be %g Is %g", test.text, test.complex128, n.Complex128)
142 
                        }
143 
                } else if n.IsComplex {
144 
                        t.Errorf("did not expect complex for %q", test.text)
145 
                }
146 
        }
147 
}
148 
 
149 
type parseTest struct {
150 
        name   string
151 
        input  string
152 
        ok     bool
153 
        result string // what the user would see in an error message.
154 
}
155 
 
156 
const (
157 
        noError  = true
158 
        hasError = false
159 
)
160 
 
161 
var parseTests = []parseTest{
162 
        {"empty", "", noError,
163 
                ``},
164 
        {"comment", "{{/*\n\n\n*/}}", noError,
165 
                ``},
166 
        {"spaces", " \t\n", noError,
167 
                `" \t\n"`},
168 
        {"text", "some text", noError,
169 
                `"some text"`},
170 
        {"emptyAction", "{{}}", hasError,
171 
                `{{}}`},
172 
        {"field", "{{.X}}", noError,
173 
                `{{.X}}`},
174 
        {"simple command", "{{printf}}", noError,
175 
                `{{printf}}`},
176 
        {"$ invocation", "{{$}}", noError,
177 
                "{{$}}"},
178 
        {"variable invocation", "{{with $x := 3}}{{$x 23}}{{end}}", noError,
179 
                "{{with $x := 3}}{{$x 23}}{{end}}"},
180 
        {"variable with fields", "{{$.I}}", noError,
181 
                "{{$.I}}"},
182 
        {"multi-word command", "{{printf `%d` 23}}", noError,
183 
                "{{printf `%d` 23}}"},
184 
        {"pipeline", "{{.X|.Y}}", noError,
185 
                `{{.X | .Y}}`},
186 
        {"pipeline with decl", "{{$x := .X|.Y}}", noError,
187 
                `{{$x := .X | .Y}}`},
188 
        {"simple if", "{{if .X}}hello{{end}}", noError,
189 
                `{{if .X}}"hello"{{end}}`},
190 
        {"if with else", "{{if .X}}true{{else}}false{{end}}", noError,
191 
                `{{if .X}}"true"{{else}}"false"{{end}}`},
192 
        {"simple range", "{{range .X}}hello{{end}}", noError,
193 
                `{{range .X}}"hello"{{end}}`},
194 
        {"chained field range", "{{range .X.Y.Z}}hello{{end}}", noError,
195 
                `{{range .X.Y.Z}}"hello"{{end}}`},
196 
        {"nested range", "{{range .X}}hello{{range .Y}}goodbye{{end}}{{end}}", noError,
197 
                `{{range .X}}"hello"{{range .Y}}"goodbye"{{end}}{{end}}`},
198 
        {"range with else", "{{range .X}}true{{else}}false{{end}}", noError,
199 
                `{{range .X}}"true"{{else}}"false"{{end}}`},
200 
        {"range over pipeline", "{{range .X|.M}}true{{else}}false{{end}}", noError,
201 
                `{{range .X | .M}}"true"{{else}}"false"{{end}}`},
202 
        {"range []int", "{{range .SI}}{{.}}{{end}}", noError,
203 
                `{{range .SI}}{{.}}{{end}}`},
204 
        {"constants", "{{range .SI 1 -3.2i true false 'a'}}{{end}}", noError,
205 
                `{{range .SI 1 -3.2i true false 'a'}}{{end}}`},
206 
        {"template", "{{template `x`}}", noError,
207 
                `{{template "x"}}`},
208 
        {"template with arg", "{{template `x` .Y}}", noError,
209 
                `{{template "x" .Y}}`},
210 
        {"with", "{{with .X}}hello{{end}}", noError,
211 
                `{{with .X}}"hello"{{end}}`},
212 
        {"with with else", "{{with .X}}hello{{else}}goodbye{{end}}", noError,
213 
                `{{with .X}}"hello"{{else}}"goodbye"{{end}}`},
214 
        // Errors.
215 
        {"unclosed action", "hello{{range", hasError, ""},
216 
        {"unmatched end", "{{end}}", hasError, ""},
217 
        {"missing end", "hello{{range .x}}", hasError, ""},
218 
        {"missing end after else", "hello{{range .x}}{{else}}", hasError, ""},
219 
        {"undefined function", "hello{{undefined}}", hasError, ""},
220 
        {"undefined variable", "{{$x}}", hasError, ""},
221 
        {"variable undefined after end", "{{with $x := 4}}{{end}}{{$x}}", hasError, ""},
222 
        {"variable undefined in template", "{{template $v}}", hasError, ""},
223 
        {"declare with field", "{{with $x.Y := 4}}{{end}}", hasError, ""},
224 
        {"template with field ref", "{{template .X}}", hasError, ""},
225 
        {"template with var", "{{template $v}}", hasError, ""},
226 
        {"invalid punctuation", "{{printf 3, 4}}", hasError, ""},
227 
        {"multidecl outside range", "{{with $v, $u := 3}}{{end}}", hasError, ""},
228 
        {"too many decls in range", "{{range $u, $v, $w := 3}}{{end}}", hasError, ""},
229 
}
230 
 
231 
var builtins = map[string]interface{}{
232 
        "printf": fmt.Sprintf,
233 
}
234 
 
235 
func TestParse(t *testing.T) {
236 
        for _, test := range parseTests {
237 
                tmpl, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree), builtins)
238 
                switch {
239 
                case err == nil && !test.ok:
240 
                        t.Errorf("%q: expected error; got none", test.name)
241 
                        continue
242 
                case err != nil && test.ok:
243 
                        t.Errorf("%q: unexpected error: %v", test.name, err)
244 
                        continue
245 
                case err != nil && !test.ok:
246 
                        // expected error, got one
247 
                        if *debug {
248 
                                fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err)
249 
                        }
250 
                        continue
251 
                }
252 
                result := tmpl.Root.String()
253 
                if result != test.result {
254 
                        t.Errorf("%s=(%q): got\n\t%v\nexpected\n\t%v", test.name, test.input, result, test.result)
255 
                }
256 
        }
257 
}
258 
 
259 
type isEmptyTest struct {
260 
        name  string
261 
        input string
262 
        empty bool
263 
}
264 
 
265 
var isEmptyTests = []isEmptyTest{
266 
        {"empty", ``, true},
267 
        {"nonempty", `hello`, false},
268 
        {"spaces only", " \t\n \t\n", true},
269 
        {"definition", `{{define "x"}}something{{end}}`, true},
270 
        {"definitions and space", "{{define `x`}}something{{end}}\n\n{{define `y`}}something{{end}}\n\n", true},
271 
        {"definitions and text", "{{define `x`}}something{{end}}\nx\n{{define `y`}}something{{end}}\ny\n}}", false},
272 
        {"definition and action", "{{define `x`}}something{{end}}{{if 3}}foo{{end}}", false},
273 
}
274 
 
275 
func TestIsEmpty(t *testing.T) {
276 
        for _, test := range isEmptyTests {
277 
                tree, err := New("root").Parse(test.input, "", "", make(map[string]*Tree), nil)
278 
                if err != nil {
279 
                        t.Errorf("%q: unexpected error: %v", test.name, err)
280 
                        continue
281 
                }
282 
                if empty := IsEmptyTree(tree.Root); empty != test.empty {
283 
                        t.Errorf("%q: expected %t got %t", test.name, test.empty, empty)
284 
                }
285 
        }
286 
}

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