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Keep an empty text value in dataset CSV export and import

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Found while testing crates/engine/src/cmd/variablecmds/csv.rs:146 (csv_escape) and :158-163 (cell_to_value)

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-31 19:43:17 +07:00
committed by bflatastic
co-authored by Claude Haiku 5.5
parent 22b1c6bc2e
commit 7ae9f2c4e5
2 changed files with 48 additions and 11 deletions
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crates/engine/src/tests/variables.rs
+29
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@@ -1103,6 +1103,35 @@ fn datasets_csv_keeps_line_breaks_in_quoted_cells() {
assert!(s.execute("dataset.import", &json!({"csv": "name,Name\nX,\"open"})).is_err(), "unclosed quote");
}
/// An empty text value is not a missing value: it comes back from the exported CSV as an empty
/// text, so selecting the data set still clears the bound text.
#[test]
fn datasets_csv_keeps_an_empty_text_value() {
let mut s = session();
let t = text(&mut s, "One");
s.execute("variable.define", &json!({"name": "Name", "kind": "text"})).unwrap();
s.execute("variable.bind", &json!({"variable": "Name", "ids": [t.0]})).unwrap();
s.execute("dataset.new", &json!({"name": "A", "values": {"Name": ""}})).unwrap();
let csv = s.execute("dataset.export", &json!({})).unwrap()["csv"].as_str().unwrap().to_string();
s.execute("dataset.delete", &json!({"names": ["A"]})).unwrap();
s.execute("dataset.import", &json!({"csv": csv})).unwrap();
let value = s.doc().unwrap().doc.variables.dataset("A").and_then(|d| d.values.get("Name")).cloned();
assert_eq!(value, Some(vectorcraft_doc::DataValue::Text(String::new())));
s.execute("dataset.import", &json!({"csv": "name,Name\nB,\nC,\"\"\n"})).unwrap();
let value = |name: &str| s.doc().unwrap().doc.variables.dataset(name).and_then(|d| d.values.get("Name")).cloned();
assert_eq!(value("C"), Some(vectorcraft_doc::DataValue::Text(String::new())));
// Compatibility rule for files written before empty text was quoted: a bare empty cell stays "no value".
assert_eq!(value("B"), None);
// A data set with no value for the variable exports a bare cell and stays without a value.
s.execute("dataset.new", &json!({"name": "D", "values": {}})).unwrap();
let csv = s.execute("dataset.export", &json!({})).unwrap()["csv"].as_str().unwrap().to_string();
assert!(csv.contains("\nD,\n"), "{csv:?}");
s.execute("dataset.delete", &json!({"names": ["D"]})).unwrap();
s.execute("dataset.import", &json!({"csv": csv})).unwrap();
let value = |name: &str| s.doc().unwrap().doc.variables.dataset(name).and_then(|d| d.values.get("Name")).cloned();
assert_eq!(value("D"), None);
}
/// A quoted text cell keeps its leading and trailing spaces, so a padded value comes back from
/// the exported CSV as it went out; an unquoted cell, and spaces after a closing quote, are trimmed.
#[test]