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@safe unittest
{
import std.csv;
import std.exception : collectException;
import std.algorithm.searching : count;
string text = "a,b,c\nHello,65";
auto ex = collectException!CSVException(csvReader(text).count);
assert(ex.toString == "(Row: 0, Col: 0) Row 2's length 2 does not match previous length of 3.");
}
@safe unittest
{
import std.csv;
import std.exception : collectException;
import std.algorithm.searching : count;
import std.typecons : Tuple;
string text = "a,b\nHello,65";
auto ex = collectException!CSVException(csvReader!(Tuple!(string,int))(text).count);
assert(ex.toString == "(Row: 1, Col: 2) Unexpected 'b' when converting from type string to type int");
}
@safe unittest
{
import std.csv;
import std.exception : assertThrown;
string text = "a,\"b,c\nHello,65,2.5";
assertThrown!IncompleteCellException(text.csvReader(["a","b","c"]));
}
@safe unittest
{
import std.csv;
import std.exception : assertThrown;
string text = "a,b,c\nHello,65,2.5";
assertThrown!HeaderMismatchException(text.csvReader(["b","c","invalid"]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
import std.algorithm.searching : count;
import std.exception : assertThrown;
string text = "a,b,c\nHello,65,\"2.5";
assertThrown!IncompleteCellException(text.csvReader.count);
// ignore the exceptions and try to handle invalid CSV
auto firstLine = text.csvReader!(string, Malformed.ignore)(null).front;
assert(firstLine.equal(["Hello", "65", "2.5"]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
string text = "76,26,22";
auto records = text.csvReader!int;
assert(records.equal!equal([
[76, 26, 22],
]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
string text = "Hello;65;2.5\nWorld;123;7.5";
struct Layout
{
string name;
int value;
double other;
}
auto records = text.csvReader!Layout(';');
assert(records.equal([
Layout("Hello", 65, 2.5),
Layout("World", 123, 7.5),
]));
}
@safe unittest
{
import std.csv;
string text = "A \" is now part of the data";
auto records = text.csvReader!(string, Malformed.ignore);
auto record = records.front;
assert(record.front == text);
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
string text = "a,b,c\nHello,65,63.63\nWorld,123,3673.562";
auto records = text.csvReader!int(["b"]);
assert(records.equal!equal([
[65],
[123],
]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
string text = "a,b,c\nHello,65,2.5\nWorld,123,7.5";
struct Layout
{
int value;
double other;
string name;
}
auto records = text.csvReader!Layout(["b","c","a"]);
assert(records.equal([
Layout(65, 2.5, "Hello"),
Layout(123, 7.5, "World")
]));
}
@safe unittest
{
import std.csv;
string text = "a,b,c\nHello,65,63.63";
auto records = text.csvReader(null);
assert(records.header == ["a","b","c"]);
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
string text = "76,26,22\n1,2\n3,4,5,6";
auto records = text.csvReader!int(',', '"', true);
assert(records.equal!equal([
[76, 26, 22],
[1, 2],
[3, 4, 5, 6]
]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
static struct Three
{
int a;
int b;
int c;
}
string text = "76,26,22\n1,2\n3,4,5,6";
auto records = text.csvReader!Three(',', '"', true);
assert(records.equal([
Three(76, 26, 22),
Three(1, 2, 0),
Three(3, 4, 5)
]));
}
@safe unittest
{
import std.csv;
import std.algorithm.comparison : equal;
auto text = "Name,Occupation,Salary\r" ~
"Joe,Carpenter,300000\nFred,Blacksmith\r\n";
auto r = csvReader!(string[string])(text, null, ',', '"', true);
assert(r.equal([
[ "Name" : "Joe", "Occupation" : "Carpenter", "Salary" : "300000" ],
[ "Name" : "Fred", "Occupation" : "Blacksmith" ]
]));
}
@safe unittest
{
import std.csv;
import std.array : appender;
import std.range.primitives : popFront;
string str = "65,63\n123,3673";
auto a = appender!(char[])();
csvNextToken(str,a,',','"');
assert(a.data == "65");
assert(str == ",63\n123,3673");
str.popFront();
a.shrinkTo(0);
csvNextToken(str,a,',','"');
assert(a.data == "63");
assert(str == "\n123,3673");
str.popFront();
a.shrinkTo(0);
csvNextToken(str,a,',','"');
assert(a.data == "123");
assert(str == ",3673");
}
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