schema_validation_error

struct SchemaValidationError <: EarthSciASTError
SchemaValidationError(message::String, errors::Vector{SchemaError})
SchemaValidationError(message, errors)

SchemaValidationError

# Text that is not JSON at all raises a ParseError...
try
    load_string("{not json")
    error("expected a ParseError")
catch e
    @assert e isa ParseError
    println(sprint(showerror, e))
end

# ...and JSON that breaks the schema raises a SchemaValidationError, whose
# `errors` field lists each failure.
try
    load_string("""{"esm": "1.0.0"}""")
    error("expected a SchemaValidationError")
catch e
    @assert e isa SchemaValidationError
    @assert !isempty(e.errors)
    println(sprint(showerror, e))
end

class SchemaValidationError extends EsmDiagnosticError
new SchemaValidationError(message: string, errors: SchemaError[]): SchemaValidationError

class SchemaValidationError(EarthSciAstError)

result = earthsci_ast.validate(doc)
assert result.is_valid
assert result.schema_errors == [] and result.structural_errors == []

# validate_path reports problems in the result; it does not raise.
bad = earthsci_ast.validate_path(FIXTURES / "invalid.esm")
assert not bad.is_valid
error = bad.structural_errors[0]
print(error.code, error.path, error.message)
assert error.code == "undefined_variable"
assert "'k'" in error.message

# Loading the same file raises, because loading validates too.
try:
    earthsci_ast.load_path(FIXTURES / "invalid.esm")
except earthsci_ast.SchemaValidationError as exc:
    assert "'k'" in str(exc)
else:
    raise AssertionError("loading invalid.esm should fail")