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v/cmd/tools/preludes/tests_assertions.v

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module main
import os
// //////////////////////////////////////////////////////////////////
// / This file will get compiled as part of the main program,
// / for a _test.v file.
// / The methods defined here are called back by the test program's
// / assert statements, on each success/fail. The goal is to make
// / customizing the look & feel of the assertions results easier,
// / since it is done in normal V code, instead of in embedded C ...
// //////////////////////////////////////////////////////////////////
fn cb_assertion_failed(i &VAssertMetaInfo) {
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// color_on := term.can_show_color_on_stderr()
use_relative_paths := match os.getenv('VERROR_PATHS') {
'absolute' {
false
} else {
true
}
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}
final_filename := if use_relative_paths { i.fpath } else { os.real_path(i.fpath) }
final_funcname := i.fn_name.replace('main__', '').replace('__', '.')
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eprintln('')
eprintln('$final_filename:${i.line_nr+1}: failed assert in ${final_funcname}')
eprintln('Source : ${i.src}')
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if i.op.len > 0 && i.op != 'call' {
eprintln(' left value: ${i.llabel} = ${i.lvalue}')
eprintln(' right value: ${i.rlabel} = ${i.rvalue}')
}
}
fn cb_assertion_ok(i &VAssertMetaInfo) {
// do nothing for now on an OK assertion
// println('OK ${(i.line_nr+1):5d}|${i.src}')
}