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// chart unit tests.
//
// SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright 2022-2026, John McNamara, jmcnamara@cpan.org
#[cfg(test)]
mod chart_tests {
use crate::chart::{Chart, ChartRange, ChartSeries, ChartType, XlsxError};
use crate::test_functions::xml_to_vec;
use crate::{xmlwriter, ChartRangeCacheDataType};
use pretty_assertions::assert_eq;
#[test]
fn test_validation() {
// Check for chart without series.
let mut chart = Chart::new(ChartType::Scatter);
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check for chart with empty series.
let mut chart = Chart::new(ChartType::Scatter);
let series = ChartSeries::new();
chart.push_series(&series);
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check for Scatter chart with empty categories.
let mut chart = Chart::new(ChartType::Scatter);
chart.add_series().set_values("Sheet1!$B$1:$B$3");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check the value range for rows reversed.
let mut chart = Chart::new(ChartType::Scatter);
chart
.add_series()
.set_categories("Sheet1!$A$1:$A$3")
.set_values("Sheet1!$B$3:$B$1");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check the value range for rows reversed.
let mut chart = Chart::new(ChartType::Scatter);
chart
.add_series()
.set_categories("Sheet1!$A$1:$A$3")
.set_values("Sheet1!$C$1:$B$3");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check the value range for row out of range.
let mut chart = Chart::new(ChartType::Scatter);
chart
.add_series()
.set_categories("Sheet1!$A$1:$A$3")
.set_values("Sheet1!$B$1:$B$1048577");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check the value range for col out of range.
let mut chart = Chart::new(ChartType::Scatter);
chart
.add_series()
.set_categories("Sheet1!$A$1:$A$3")
.set_values("Sheet1!$B$1:$XFE$10");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
// Check the category range for validation error.
let mut chart = Chart::new(ChartType::Scatter);
chart
.add_series()
.set_categories("Sheet1!$A$3:$A$1")
.set_values("Sheet1!$B$1:$B$3");
let result = chart.validate();
assert!(matches!(result, Err(XlsxError::ChartError(_))));
}
#[test]
fn test_assemble() {
let mut series1 = ChartSeries::new();
let mut range1 = ChartRange::new_from_range("Sheet1", 0, 0, 4, 0);
range1.set_cache(&["1", "2", "3", "4", "5"], ChartRangeCacheDataType::Number);
let mut range2 = ChartRange::new_from_range("Sheet1", 0, 1, 4, 1);
range2.set_cache(&["2", "4", "6", "8", "10"], ChartRangeCacheDataType::Number);
let mut range3 = ChartRange::new_from_string("Sheet1!$A$1:$A$5");
range3.set_cache(&["1", "2", "3", "4", "5"], ChartRangeCacheDataType::Number);
let mut range4 = ChartRange::new_from_string("Sheet1!$C$1:$C$5");
range4.set_cache(
&["3", "6", "9", "12", "15"],
ChartRangeCacheDataType::Number,
);
series1.set_categories(&range1).set_values(&range2);
let mut series2 = ChartSeries::new();
series2.set_categories(&range3).set_values(&range4);
let mut chart = Chart::new(ChartType::Bar);
chart.push_series(&series1).push_series(&series2);
chart.set_axis_ids(64052224, 64055552);
chart.assemble_xml_file();
let got = xmlwriter::cursor_to_str(&chart.writer);
let got = xml_to_vec(got);
let expected = xml_to_vec(
r#"
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<c:chartSpace xmlns:c="http://schemas.openxmlformats.org/drawingml/2006/chart" xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
<c:lang val="en-US"/>
<c:chart>
<c:plotArea>
<c:layout/>
<c:barChart>
<c:barDir val="bar"/>
<c:grouping val="clustered"/>
<c:ser>
<c:idx val="0"/>
<c:order val="0"/>
<c:cat>
<c:numRef>
<c:f>Sheet1!$A$1:$A$5</c:f>
<c:numCache>
<c:formatCode>General</c:formatCode>
<c:ptCount val="5"/>
<c:pt idx="0">
<c:v>1</c:v>
</c:pt>
<c:pt idx="1">
<c:v>2</c:v>
</c:pt>
<c:pt idx="2">
<c:v>3</c:v>
</c:pt>
<c:pt idx="3">
<c:v>4</c:v>
</c:pt>
<c:pt idx="4">
<c:v>5</c:v>
</c:pt>
</c:numCache>
</c:numRef>
</c:cat>
<c:val>
<c:numRef>
<c:f>Sheet1!$B$1:$B$5</c:f>
<c:numCache>
<c:formatCode>General</c:formatCode>
<c:ptCount val="5"/>
<c:pt idx="0">
<c:v>2</c:v>
</c:pt>
<c:pt idx="1">
<c:v>4</c:v>
</c:pt>
<c:pt idx="2">
<c:v>6</c:v>
</c:pt>
<c:pt idx="3">
<c:v>8</c:v>
</c:pt>
<c:pt idx="4">
<c:v>10</c:v>
</c:pt>
</c:numCache>
</c:numRef>
</c:val>
</c:ser>
<c:ser>
<c:idx val="1"/>
<c:order val="1"/>
<c:cat>
<c:numRef>
<c:f>Sheet1!$A$1:$A$5</c:f>
<c:numCache>
<c:formatCode>General</c:formatCode>
<c:ptCount val="5"/>
<c:pt idx="0">
<c:v>1</c:v>
</c:pt>
<c:pt idx="1">
<c:v>2</c:v>
</c:pt>
<c:pt idx="2">
<c:v>3</c:v>
</c:pt>
<c:pt idx="3">
<c:v>4</c:v>
</c:pt>
<c:pt idx="4">
<c:v>5</c:v>
</c:pt>
</c:numCache>
</c:numRef>
</c:cat>
<c:val>
<c:numRef>
<c:f>Sheet1!$C$1:$C$5</c:f>
<c:numCache>
<c:formatCode>General</c:formatCode>
<c:ptCount val="5"/>
<c:pt idx="0">
<c:v>3</c:v>
</c:pt>
<c:pt idx="1">
<c:v>6</c:v>
</c:pt>
<c:pt idx="2">
<c:v>9</c:v>
</c:pt>
<c:pt idx="3">
<c:v>12</c:v>
</c:pt>
<c:pt idx="4">
<c:v>15</c:v>
</c:pt>
</c:numCache>
</c:numRef>
</c:val>
</c:ser>
<c:axId val="64052224"/>
<c:axId val="64055552"/>
</c:barChart>
<c:catAx>
<c:axId val="64052224"/>
<c:scaling>
<c:orientation val="minMax"/>
</c:scaling>
<c:axPos val="l"/>
<c:numFmt formatCode="General" sourceLinked="1"/>
<c:tickLblPos val="nextTo"/>
<c:crossAx val="64055552"/>
<c:crosses val="autoZero"/>
<c:auto val="1"/>
<c:lblAlgn val="ctr"/>
<c:lblOffset val="100"/>
</c:catAx>
<c:valAx>
<c:axId val="64055552"/>
<c:scaling>
<c:orientation val="minMax"/>
</c:scaling>
<c:axPos val="b"/>
<c:majorGridlines/>
<c:numFmt formatCode="General" sourceLinked="1"/>
<c:tickLblPos val="nextTo"/>
<c:crossAx val="64052224"/>
<c:crosses val="autoZero"/>
<c:crossBetween val="between"/>
</c:valAx>
</c:plotArea>
<c:legend>
<c:legendPos val="r"/>
<c:layout/>
</c:legend>
<c:plotVisOnly val="1"/>
</c:chart>
<c:printSettings>
<c:headerFooter/>
<c:pageMargins b="0.75" l="0.7" r="0.7" t="0.75" header="0.3" footer="0.3"/>
<c:pageSetup/>
</c:printSettings>
</c:chartSpace>
"#,
);
assert_eq!(expected, got);
}
#[test]
fn test_range_from_string() {
let range_string = "=Sheet1!$A$1:$A$5";
let range = ChartRange::new_from_string(range_string);
assert_eq!("Sheet1!$A$1:$A$5", range.formula_string());
assert_eq!("Sheet1", range.sheet_name);
let range_string = "Sheet1!$A$1:$A$5";
let range = ChartRange::new_from_string(range_string);
assert_eq!("Sheet1!$A$1:$A$5", range.formula_string());
assert_eq!("Sheet1", range.sheet_name);
let range_string = "Sheet 1!$A$1:$A$5";
let range = ChartRange::new_from_string(range_string);
assert_eq!("'Sheet 1'!$A$1:$A$5", range.formula_string());
assert_eq!("Sheet 1", range.sheet_name);
}
}