Refacto predicate on Value.rs

[jcamiel]

Every predicate on Value are implemented in runner/predicate.rs and runner/predicate_value.rs:

hurl/packages/hurl/src/runner/predicate.rs

Lines 345 to 374 in 07e2fc7

	fn eval_start_with(
	expected: &PredicateValue,
	variables: &VariableSet,
	actual: &Value,
	context_dir: &ContextDir,
	) -> Result<AssertResult, RunnerError> {
	let expected = eval_predicate_value(expected, variables, context_dir)?;
	let expected_display = format!("starts with {}", expected.repr());
	let actual_display = actual.repr();
	match (expected, actual) {
	(Value::String(expected), Value::String(actual)) => Ok(AssertResult {
	success: actual.as_str().starts_with(expected.as_str()),
	actual: actual_display,
	expected: expected_display,
	type_mismatch: false,
	}),
	(Value::Bytes(expected), Value::Bytes(actual)) => Ok(AssertResult {
	success: actual.starts_with(&expected),
	actual: actual_display,
	expected: expected_display,
	type_mismatch: false,
	}),
	_ => Ok(AssertResult {
	success: false,
	actual: actual_display,
	expected: expected_display,
	type_mismatch: true,
	}),
	}
	}

The code should be move to Value.rs by implemeting eq, start_with on directly Value + test unit are simpler