@testable import PureYAML
import Testing

@Suite("Block scalar indentation edges")
struct BlockScalarTrailingCommentTests {
    @Test("A comment less indented than block scalar content ends it without error")
    func test_lessIndentedTrailingCommentEndsBlockScalar() throws {
        // The `# comment` sits at column 2, below the content indent (column 3), so it ends the
        // block scalar and is an ordinary comment rather than driving a dedent onto an invalid
        // indentation level.
        #expect(try PureYAML.parse("|\n  text\n # comment\n") == .string("text\n"))
    }

    @Test("An over-indented blank line keeps its surplus spaces as content")
    func test_overIndentedBlankLineKeepsSurplusSpaces() throws {
        // The middle line carries three spaces against a two-space content indent, so one surplus
        // space is preserved as the line's content instead of collapsing to empty.
        #expect(try PureYAML.parse("|\n  a\n   \n  b\n") == .string("a\n \nb\n"))
    }

    @Test("A block scalar whose own content starts with '#' keeps it as literal text")
    func test_blockScalarContentStartingWithHash() throws {
        #expect(try PureYAML.parse("strip: |-\n  # text\n") == .mapping(.init([
            .init(key: "strip", value: .string("# text")),
        ])))
    }
}