csv: handle missing line ending

pull/4533/head
sambeckingham 2020-04-20 23:02:55 +01:00 committed by GitHub
parent 67a76cee1e
commit 4ea4d1c8c4
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 136 additions and 45 deletions

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@ -1,45 +0,0 @@
import encoding.csv
fn test_encoding_csv_reader() {
data := 'name,email,phone,other\njoe,joe@blow.com,0400000000,test\nsam,sam@likesham.com,0433000000,"test quoted field"\n#chris,chris@nomail.com,94444444,"commented row"\n'
mut csv_reader := csv.new_reader(data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
if row_count== 1 {
assert row[0] == 'name'
assert row[1] == 'email'
assert row[2] == 'phone'
assert row[3] == 'other'
}
if row_count == 2 {
assert row[0] == 'joe'
assert row[1] == 'joe@blow.com'
assert row[2] == '0400000000'
assert row[3] == 'test'
}
if row_count == 3 {
assert row[0] == 'sam'
assert row[1] == 'sam@likesham.com'
assert row[2] == '0433000000'
// quoted field
assert row[3] == 'test quoted field'
}
}
assert row_count == 3
}
fn test_encoding_csv_writer() {
mut csv_writer := csv.new_writer()
csv_writer.write(['name', 'email', 'phone', 'other']) or {}
csv_writer.write(['joe', 'joe@blow.com', '0400000000', 'test']) or {}
csv_writer.write(['sam', 'sam@likesham.com', '0433000000', 'needs, quoting']) or {}
assert csv_writer.str() == 'name,email,phone,other\njoe,joe@blow.com,0400000000,test\nsam,sam@likesham.com,0433000000,"needs, quoting"\n'
}

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@ -77,6 +77,9 @@ fn (r mut Reader) read_line() ?string {
// no valid line endings found
return err_invalid_le
}
} else {
// No line ending on file
i = r.data.len-1
}
}
mut line := r.data[r.row_pos..i]

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@ -0,0 +1,122 @@
import encoding.csv
fn test_encoding_csv_reader() {
data := 'name,email,phone,other\njoe,joe@blow.com,0400000000,test\nsam,sam@likesham.com,0433000000,"test quoted field"\n#chris,chris@nomail.com,94444444,"commented row"\n'
mut csv_reader := csv.new_reader(data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
if row_count == 1 {
assert row[0] == 'name'
assert row[1] == 'email'
assert row[2] == 'phone'
assert row[3] == 'other'
}
if row_count == 2 {
assert row[0] == 'joe'
assert row[1] == 'joe@blow.com'
assert row[2] == '0400000000'
assert row[3] == 'test'
}
if row_count == 3 {
assert row[0] == 'sam'
assert row[1] == 'sam@likesham.com'
assert row[2] == '0433000000'
// quoted field
assert row[3] == 'test quoted field'
}
}
assert row_count == 3
}
fn test_line_break_lf() {
lf_data := 'name,email\njoe,joe@blow.com\n'
mut csv_reader := csv.new_reader(lf_data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
if row_count == 1 {
assert row[0] == 'name'
assert row[1] == 'email'
}
if row_count == 2 {
assert row[0] == 'joe'
assert row[1] == 'joe@blow.com'
}
}
assert row_count == 2
}
fn test_line_break_cr() {
cr_data := 'name,email\rjoe,joe@blow.com\r'
mut csv_reader := csv.new_reader(cr_data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
if row_count == 1 {
assert row[0] == 'name'
assert row[1] == 'email'
}
if row_count == 2 {
assert row[0] == 'joe'
assert row[1] == 'joe@blow.com'
}
}
assert row_count == 2
}
fn test_line_break_crlf() {
crlf_data := 'name,email\r\njoe,joe@blow.com\r\n'
mut csv_reader := csv.new_reader(crlf_data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
if row_count == 1 {
assert row[0] == 'name'
assert row[1] == 'email'
}
if row_count == 2 {
assert row[0] == 'joe'
assert row[1] == 'joe@blow.com'
}
}
assert row_count == 2
}
fn test_no_line_ending() {
data := 'name,email,phone,other\njoe,joe@blow.com,0400000000,test'
mut csv_reader := csv.new_reader(data)
mut row_count := 0
for {
row := csv_reader.read() or {
break
}
row_count++
}
assert row_count == 2
}

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@ -0,0 +1,11 @@
import encoding.csv
fn test_encoding_csv_writer() {
mut csv_writer := csv.new_writer()
csv_writer.write(['name', 'email', 'phone', 'other']) or {}
csv_writer.write(['joe', 'joe@blow.com', '0400000000', 'test']) or {}
csv_writer.write(['sam', 'sam@likesham.com', '0433000000', 'needs, quoting']) or {}
assert csv_writer.str() == 'name,email,phone,other\njoe,joe@blow.com,0400000000,test\nsam,sam@likesham.com,0433000000,"needs, quoting"\n'
}