MapLibreParticleLab/platform/darwin/test/MLNStyleLayerTests.mm.ejs

<%
  const type = locals.type;
  const properties = locals.properties;
  const enumProperties = locals.enumProperties;
-%>
// This file is generated.
// Edit platform/darwin/scripts/generate-style-code.js, then run `make darwin-style-code`.

#import "MLNStyleLayerTests.h"
#import "../../darwin/src/NSDate+MLNAdditions.h"
<% if (type === 'symbol') { -%>
#include "../../darwin/src/MLNAttributedExpression.h"
<% } -%>

#import "MLNStyleLayer_Private.h"

#include <mbgl/style/layers/<%- type.replace('-', '_') %>_layer.hpp>
#include <mbgl/style/transition_options.hpp>
#include <mbgl/style/expression/dsl.hpp>

@interface MLN<%- camelize(type) %>LayerTests : MLNStyleLayerTests
@end

@implementation MLN<%- camelize(type) %>LayerTests

+ (NSString *)layerType {
    return @"<%- type %>";
}

<% if (type !== 'background' && type !== 'raster' && type !== 'hillshade') { -%>
- (void)testPredicates {
    MLNPointFeature *feature = [[MLNPointFeature alloc] init];
    MLNShapeSource *source = [[MLNShapeSource alloc] initWithIdentifier:@"sourceID" shape:feature options:nil];
    MLN<%- camelize(type) %>StyleLayer *layer = [[MLN<%- camelize(type) %>StyleLayer alloc] initWithIdentifier:@"layerID" source:source];

    XCTAssertNil(layer.sourceLayerIdentifier);
    layer.sourceLayerIdentifier = @"layerID";
    XCTAssertEqualObjects(layer.sourceLayerIdentifier, @"layerID");
    layer.sourceLayerIdentifier = nil;
    XCTAssertNil(layer.sourceLayerIdentifier);

    XCTAssertNil(layer.predicate);
    layer.predicate = [NSPredicate predicateWithFormat:@"$featureIdentifier = 1"];
    XCTAssertEqualObjects(layer.predicate,  [NSPredicate predicateWithFormat:@"$featureIdentifier = 1"]);
    layer.predicate = nil;
    XCTAssertNil(layer.predicate);
}

<% } -%>
- (void)testProperties {
<% if (type === 'background') { -%>
    MLN<%- camelize(type) %>StyleLayer *layer = [[MLN<%- camelize(type) %>StyleLayer alloc] initWithIdentifier:@"layerID"];
<% } else { -%>
    MLNPointFeature *feature = [[MLNPointFeature alloc] init];
    MLNShapeSource *source = [[MLNShapeSource alloc] initWithIdentifier:@"sourceID" shape:feature options:nil];

    MLN<%- camelize(type) %>StyleLayer *layer = [[MLN<%- camelize(type) %>StyleLayer alloc] initWithIdentifier:@"layerID" source:source];
<% } -%>
    XCTAssertNotEqual(layer.rawLayer, nullptr);
    XCTAssertEqualObjects(@(layer.rawLayer->getTypeInfo()->type), @"<%- type %>");
    auto rawLayer = static_cast<mbgl::style::<%- camelize(type) %>Layer*>(layer.rawLayer);

    MLNTransition transitionTest = MLNTransitionMake(5, 4);

<% for (const property of properties) { -%>
<%   if (property['property-type'] === 'color-ramp') continue; -%>

    // <%- originalPropertyName(property) %>
    {
        XCTAssertTrue(rawLayer->get<%- camelize(originalPropertyName(property)) %>().isUndefined(),
                      @"<%- originalPropertyName(property) %> should be unset initially.");
        NSExpression *defaultExpression = layer.<%- objCName(property) %>;

<% if (property.type === 'formatted') { -%>
        NSExpression *constantExpression = [NSExpression expressionWithFormat:<%- objCTestValue(property, 'string', true, 3) %>];
<% } else if (property.type === 'resolvedImage'){ -%>
        NSExpression *constantExpression = [NSExpression expressionForConstantValue:<%- objCTestValue(property, 'string', true, 3) %>];
<% } else { -%>
        NSExpression *constantExpression = [NSExpression expressionWithFormat:<%- objCTestValue(property, type, true, 3) %>];
<% } -%>
        layer.<%- objCName(property) %> = constantExpression;
        mbgl::style::PropertyValue<<%- mbglType(property) %>> propertyValue = { <%- mbglTestValue(property, type) %> };
        XCTAssertEqual(rawLayer->get<%- camelize(originalPropertyName(property)) %>(), propertyValue,
                       @"Setting <%- objCName(property) %> to a constant value expression should update <%- originalPropertyName(property) %>.");
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, constantExpression,
                              @"<%- objCName(property) %> should round-trip constant value expressions.");

<% if (property.type !== 'formatted') { -%>
        constantExpression = [NSExpression expressionWithFormat:<%- objCTestValue(property, type, false, 3) %>];
<% } else { -%>
        MLNAttributedExpression *attributedConstantExpression = [[MLNAttributedExpression alloc] initWithExpression:[NSExpression expressionWithFormat:<%- objCTestValue(property, 'string', true, 3) %>]
                                                                                                 attributes:@{}];
        constantExpression = [NSExpression mgl_expressionForAttributedExpressions:@[[NSExpression expressionForConstantValue:attributedConstantExpression]]];
<% } -%>
        XCTExpectFailure(@"Awaiting unit test refactoring https://github.com/maplibre/maplibre-native/issues/421");
        NSExpression *functionExpression = [NSExpression expressionWithFormat:@"mgl_step:from:stops:($zoomLevel, %@, %@)", constantExpression, @{@18: constantExpression}];
        layer.<%- objCName(property) %> = functionExpression;

        {
            using namespace mbgl::style::expression::dsl;
            propertyValue = mbgl::style::PropertyExpression<<%- mbglType(property) %>>(
<% if (property.type === 'formatted') { -%>
                step(zoom(), format(<%- mbglExpressionTestValue(property, type) %>), 18.0, format(<%- mbglExpressionTestValue(property, type) %>))
<% } else if (property.type === 'resolvedImage') { -%>
                step(zoom(), image(literal(<%- mbglExpressionTestValue(property, type) %>)), 18.0, image(literal(<%- mbglExpressionTestValue(property, type) %>)))
<% } else { -%>
                step(zoom(), literal(<%- mbglExpressionTestValue(property, type) %>), 18.0, literal(<%- mbglExpressionTestValue(property, type) %>))
<% } -%>
            );
        }

        XCTAssertEqual(rawLayer->get<%- camelize(originalPropertyName(property)) %>(), propertyValue,
                       @"Setting <%- objCName(property) %> to a camera expression should update <%- originalPropertyName(property) %>.");
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, functionExpression,
                              @"<%- objCName(property) %> should round-trip camera expressions.");

<% if (isDataDriven(property) && isInterpolatable(property)) { -%>
        functionExpression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:(keyName, 'linear', nil, %@)", @{@18: constantExpression}];
        layer.<%- objCName(property) %> = functionExpression;

        {
            using namespace mbgl::style::expression::dsl;
            propertyValue = mbgl::style::PropertyExpression<<%- mbglType(property) %>>(
                interpolate(linear(), number(get("keyName")), 18.0, literal(<%- mbglExpressionTestValue(property, type) %>))
            );
        }

        XCTAssertEqual(rawLayer->get<%- camelize(originalPropertyName(property)) %>(), propertyValue,
                       @"Setting <%- objCName(property) %> to a data expression should update <%- originalPropertyName(property) %>.");
        NSExpression *pedanticFunctionExpression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:(CAST(keyName, 'NSNumber'), 'linear', nil, %@)", @{@18: constantExpression}];
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, pedanticFunctionExpression,
                              @"<%- objCName(property) %> should round-trip data expressions.");

        functionExpression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:($zoomLevel, 'linear', nil, %@)", @{@10: functionExpression}];
        layer.<%- objCName(property) %> = functionExpression;

        {
            using namespace mbgl::style::expression::dsl;
            propertyValue = mbgl::style::PropertyExpression<<%- mbglType(property) %>>(
                interpolate(linear(), zoom(), 10.0, interpolate(linear(), number(get("keyName")), 18.0, literal(<%- mbglExpressionTestValue(property, type) %>)))
            );
        }

        XCTAssertEqual(rawLayer->get<%- camelize(originalPropertyName(property)) %>(), propertyValue,
                       @"Setting <%- objCName(property) %> to a camera-data expression should update <%- originalPropertyName(property) %>.");
        pedanticFunctionExpression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:($zoomLevel, 'linear', nil, %@)", @{@10: pedanticFunctionExpression}];
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, pedanticFunctionExpression,
                              @"<%- objCName(property) %> should round-trip camera-data expressions.");
<% } -%>
<% if (!property.required) { -%>

        layer.<%- objCName(property) %> = nil;
        XCTAssertTrue(rawLayer->get<%- camelize(originalPropertyName(property)) %>().isUndefined(),
                      @"Unsetting <%- objCName(property) %> should return <%- originalPropertyName(property) %> to the default value.");
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, defaultExpression,
                              @"<%- objCName(property) %> should return the default value after being unset.");
<% } -%>
<% if (!isDataDriven(property)) { -%>

        functionExpression = [NSExpression expressionForKeyPath:@"bogus"];
        XCTAssertThrowsSpecificNamed(layer.<%- objCName(property) %> = functionExpression, NSException, NSInvalidArgumentException, @"MLN<%- camelize(type) %>Layer should raise an exception if a camera-data expression is applied to a property that does not support key paths to feature attributes.");
        functionExpression = [NSExpression expressionWithFormat:@"mgl_step:from:stops:(bogus, %@, %@)", constantExpression, @{@18: constantExpression}];
        functionExpression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:($zoomLevel, 'linear', nil, %@)", @{@10: functionExpression}];
        XCTAssertThrowsSpecificNamed(layer.<%- objCName(property) %> = functionExpression, NSException, NSInvalidArgumentException, @"MLN<%- camelize(type) %>Layer should raise an exception if a camera-data expression is applied to a property that does not support key paths to feature attributes.");
<% } -%>
<% if (property["transition"] && !property.original) { -%>
        // Transition property test
        layer.<%- camelizeWithLeadingLowercase(originalPropertyName(property)) %>Transition = transitionTest;
        auto toptions = rawLayer->get<%- camelize(originalPropertyName(property)) %>Transition();
        XCTAssert(toptions.delay && MLNTimeIntervalFromDuration(*toptions.delay) == transitionTest.delay);
        XCTAssert(toptions.duration && MLNTimeIntervalFromDuration(*toptions.duration) == transitionTest.duration);

        MLNTransition <%- camelizeWithLeadingLowercase(originalPropertyName(property)) %>Transition = layer.<%- camelizeWithLeadingLowercase(originalPropertyName(property)) %>Transition;
        XCTAssertEqual(<%- camelizeWithLeadingLowercase(originalPropertyName(property)) %>Transition.delay, transitionTest.delay);
        XCTAssertEqual(<%- camelizeWithLeadingLowercase(originalPropertyName(property)) %>Transition.duration, transitionTest.duration);
<% } -%>
<% if (property.tokens) { -%>

        // Tokens test
        layer.<%- objCName(property) %> = [NSExpression expressionForConstantValue:@"{token}"];

        {
            using namespace mbgl::style::expression::dsl;
            propertyValue = mbgl::style::PropertyExpression<<%- mbglType(property) %>>(
<% if (property.type === 'formatted') { -%>
                format(toString(get(literal("token"))))
<% } else if (property.type === 'resolvedImage') { -%>
                image(toString(get(literal("token"))))
<% } else { -%>
                toString(get(literal("token")))
<% } -%>
            );
        }

        XCTAssertEqual(rawLayer->get<%- camelize(originalPropertyName(property)) %>(), propertyValue,
                       @"Setting <%- objCName(property) %> to a constant string with tokens should convert to an expression.");

<% if (property.type === 'formatted') { -%>
        MLNAttributedExpression *tokenAttibutedExpression = [[MLNAttributedExpression alloc] initWithExpression:[NSExpression expressionWithFormat:@"CAST(token, 'NSString')"]
                                                                                                     attributes:@{}];
        NSExpression* tokenExpression = [NSExpression mgl_expressionForAttributedExpressions:@[[NSExpression expressionForConstantValue:tokenAttibutedExpression]]];
<% } else if (property.type === 'resolvedImage') { -%>
        NSExpression* tokenExpression = [NSExpression expressionWithFormat:@"MLN_FUNCTION('image', CAST(token, \"NSString\"))"];
<% } else { -%>
        NSExpression* tokenExpression = [NSExpression expressionWithFormat:@"CAST(token, \"NSString\")"];
<% } -%>
        XCTAssertEqualObjects(layer.<%- objCName(property) %>, tokenExpression,
                              @"Setting <%- objCName(property) %> to a constant string with tokens should convert to an expression.");
<% } -%>
    }
<% } -%>
}

- (void)testPropertyNames {
<% for (const property of properties) { -%>
<%   if (property['property-type'] === 'color-ramp') continue; -%>
    [self testPropertyName:@"<%- property.getter || property.name %>" isBoolean:<%- property.type === 'boolean' ? 'YES' : 'NO' %>];
<% } -%>
}

<% if (enumProperties) { -%>
- (void)testValueAdditions {
<% for (let property of enumProperties) { -%>
<% for (let value in property.values) { -%>
<% if (property.values.hasOwnProperty(value)) { -%>
    XCTAssertEqual([NSValue valueWithMLN<%- camelize(enumName(property)) %>:MLN<%- camelize(enumName(property)) %><%- camelize(value) %>].MLN<%- camelize(enumName(property)) %>Value, MLN<%- camelize(enumName(property)) %><%- camelize(value) %>);
<% } -%>
<% } -%>
<% } -%>
}

<% } -%>
@end