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// Copyright 2019, Shulhan <m.shulhan@gmail.com>. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package parser
import (
"testing"
"github.com/shuLhan/share/lib/test"
)
func TestParser_AddDelimiters(t *testing.T) {
p := &Parser{
delims: "/:",
}
cases := []struct {
delims string
exp string
}{{
exp: "/:",
}, {
delims: " \t",
exp: "/: \t",
}, {
delims: " \t",
exp: "/: \t",
}}
for _, c := range cases {
p.AddDelimiters(c.delims)
test.Assert(t, "p.delims", c.exp, p.delims, true)
}
}
func TestParser_Lines(t *testing.T) {
cases := []struct {
desc string
content string
exp []string
}{{
desc: "With empty content",
exp: []string{},
}, {
desc: "With single empty line",
content: "\n",
exp: []string{},
}, {
desc: "With single empty line",
content: " \t\r\f\n",
exp: []string{},
}, {
desc: "With one line, at the end",
content: " \t\r\f\ntest",
exp: []string{
"test",
},
}, {
desc: "With one line, in the middle",
content: " \t\r\f\ntest \t\r\f\n",
exp: []string{
"test",
},
}, {
desc: "With two lines",
content: "A \t\f\r\n \nB \t\f\r\n",
exp: []string{
"A",
"B",
},
}, {
desc: "With three lines",
content: "A \t\f\r\n \n\n\nB\n \t\f\r\nC",
exp: []string{
"A",
"B",
"C",
},
}}
p := New("", "")
for _, c := range cases {
t.Log(c.desc)
p.Load(c.content, "")
got := p.Lines()
test.Assert(t, "Lines()", c.exp, got, true)
}
}
func TestParser_Token(t *testing.T) {
p := New("\t test \ntest", "")
cases := []struct {
expToken string
expDelim rune
}{{
expDelim: '\t',
}, {
expDelim: ' ',
}, {
expToken: "test",
expDelim: ' ',
}, {
expDelim: '\n',
}, {
expToken: "test",
}}
for _, c := range cases {
gotToken, gotDelim := p.Token()
test.Assert(t, "token", c.expToken, gotToken, true)
test.Assert(t, "delim", c.expDelim, gotDelim, true)
}
}
func TestParser_TokenEscaped(t *testing.T) {
p := New("\t te\\ st \ntest", "")
cases := []struct {
expToken string
expDelim rune
}{{
expDelim: '\t',
}, {
expDelim: ' ',
}, {
expToken: "te st",
expDelim: ' ',
}, {
expDelim: '\n',
}, {
expToken: "test",
}}
for _, c := range cases {
gotToken, gotDelim := p.TokenEscaped('\\')
test.Assert(t, "token", c.expToken, gotToken, true)
test.Assert(t, "delim", c.expDelim, gotDelim, true)
}
}
func TestParser_SkipLine(t *testing.T) {
cases := []struct {
desc string
content string
expToken string
expDelim rune
}{{
desc: "With empty content",
}, {
desc: "With empty line",
content: "\ntest\n",
expToken: "test",
expDelim: '\n',
}, {
desc: "With single line",
content: "test\n",
}, {
desc: "With two lines",
content: "test 1\ntest 2",
expToken: "test",
expDelim: ' ',
}}
p := New("", "")
for _, c := range cases {
t.Log(c.desc)
p.Load(c.content, "")
p.SkipLine()
gotToken, gotDelim := p.Token()
test.Assert(t, "token", c.expToken, gotToken, true)
test.Assert(t, "delim", c.expDelim, gotDelim, true)
}
}
func TestParser_Open(t *testing.T) {
cases := []struct {
desc string
file string
expError string
expContent string
}{{
desc: "With not existing file",
file: "testdata/xxx",
expError: "open testdata/xxx: no such file or directory",
}, {
desc: "With file exist",
file: "testdata/test.txt",
expContent: "test\n",
}}
for _, c := range cases {
t.Log(c.desc)
p, err := Open(c.file, "")
if err != nil {
test.Assert(t, "error", c.expError, err.Error(), true)
continue
}
test.Assert(t, "content", c.expContent, p.v, true)
}
}
func TestParser_RemoveDelimiters(t *testing.T) {
p := &Parser{
delims: "/: \t",
}
cases := []struct {
delims string
exp string
}{{
exp: "/: \t",
}, {
delims: "/",
exp: ": \t",
}, {
delims: "///",
exp: ": \t",
}, {
delims: "\t :",
exp: "",
}}
for _, c := range cases {
p.RemoveDelimiters(c.delims)
test.Assert(t, "p.delims", c.exp, p.delims, true)
}
}
func TestParser_SkipHorizontalSpaces(t *testing.T) {
cases := []struct {
desc string
content string
expRune rune
expToken string
expDelim rune
}{{
desc: "With empty content",
}, {
desc: "With empty line",
content: " \t\r\f\n",
expRune: '\n',
expDelim: '\n',
}, {
desc: "With single line",
content: "test\n",
expRune: 't',
expToken: "test",
expDelim: '\n',
}, {
desc: "With space in the beginning",
content: " \t\f\rtest 1\ntest 2",
expRune: 't',
expToken: "test",
expDelim: ' ',
}}
p := New("", "")
for _, c := range cases {
t.Log(c.desc)
p.Load(c.content, "")
got := p.SkipHorizontalSpaces()
test.Assert(t, "rune", c.expRune, got, true)
gotToken, gotDelim := p.Token()
test.Assert(t, "token", c.expToken, gotToken, true)
test.Assert(t, "delim", c.expDelim, gotDelim, true)
}
}
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