65 lines
1.8 KiB
Swift
65 lines
1.8 KiB
Swift
import Spectre
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@testable import Stencil
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import XCTest
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final class TokenParserTests: XCTestCase {
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func testTokenParser() {
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it("can parse a text token") {
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let parser = TokenParser(tokens: [
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.text(value: "Hello World", at: .unknown)
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], environment: Environment())
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let nodes = try parser.parse()
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let node = nodes.first as? TextNode
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try expect(nodes.count) == 1
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try expect(node?.text) == "Hello World"
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}
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it("can parse a variable token") {
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let parser = TokenParser(tokens: [
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.variable(value: "'name'", at: .unknown)
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], environment: Environment())
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let nodes = try parser.parse()
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let node = nodes.first as? VariableNode
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try expect(nodes.count) == 1
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let result = try node?.render(Context())
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try expect(result) == "name"
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}
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it("can parse a comment token") {
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let parser = TokenParser(tokens: [
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.comment(value: "Secret stuff!", at: .unknown)
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], environment: Environment())
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let nodes = try parser.parse()
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try expect(nodes.count) == 0
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}
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it("can parse a tag token") {
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let simpleExtension = Extension()
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simpleExtension.registerSimpleTag("known") { _ in
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""
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}
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let parser = TokenParser(tokens: [
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.block(value: "known", at: .unknown)
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], environment: Environment(extensions: [simpleExtension]))
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let nodes = try parser.parse()
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try expect(nodes.count) == 1
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}
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it("errors when parsing an unknown tag") {
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let tokens: [Token] = [.block(value: "unknown", at: .unknown)]
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let parser = TokenParser(tokens: tokens, environment: Environment())
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try expect(try parser.parse()).toThrow(TemplateSyntaxError(
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reason: "Unknown template tag 'unknown'",
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token: tokens.first
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))
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}
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}
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}
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