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dedent_rule_test.go
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dedent_rule_test.go
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package ptproc
import (
"bytes"
"context"
"io"
"os"
"reflect"
"regexp"
"testing"
)
func Test_dedentRule_Apply(t *testing.T) {
t.Parallel()
tests := []struct {
name string
spaceRegExp *regexp.Regexp
inputFileName string
input string
output string
wantErr bool
}{
{
name: "basic",
inputFileName: "test.txt",
input: " line1\n line2\n",
output: "line1\nline2\n",
wantErr: false,
},
{
name: "multi level",
inputFileName: "test.txt",
input: " line1\n line2\n",
output: "line1\n line2\n",
wantErr: false,
},
{
name: "tab",
inputFileName: "test.txt",
input: "\tline1\n\tline2\n",
output: "line1\nline2\n",
wantErr: false,
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
ctx := context.Background()
rule, err := NewDedentRule(&DedentRuleConfig{
SpaceRegExp: tt.spaceRegExp,
})
if err != nil {
t.Fatal(err)
}
proc, err := NewProcessor(&ProcessorConfig{
OpenFile: func(filePath string) (io.Reader, error) {
if tt.inputFileName == filePath {
return bytes.NewBufferString(tt.input), nil
}
return nil, os.ErrNotExist
},
Rules: []Rule{rule},
})
if err != nil {
t.Fatal(err)
}
output, err := proc.ProcessFile(ctx, tt.inputFileName)
if (err != nil) != tt.wantErr {
t.Fatalf("error = %v, wantErr %v", err, tt.wantErr)
} else {
t.Logf("err = %v", err)
}
if !reflect.DeepEqual(output, tt.output) {
t.Errorf("got = %v, want %v", output, tt.output)
}
})
}
}