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testing: improve printing on testing.expect inequality

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-01-06 12:13:41 -07:00
parent 59bb156bf9
commit fb69b0cda7
1 changed files with 10 additions and 3 deletions
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13
src/testing.zig
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@ -15,7 +15,12 @@ fn ExpectFloat(comptime T: type) type {
/// Approximate (absolute tolerance) equality
pub fn eqlApprox(e: *const @This(), actual: T, tolerance: T) !void {
try testing.expectApproxEqAbs(e.expected, actual, tolerance);
// Note: testing.expectApproxEqAbs does the same thing, but does not print floating
// point values as decimal (prefers scientific notation)
if (!math.eql(T, e.expected, actual, tolerance)) {
std.debug.print("actual float {d}, expected {d} (not within absolute epsilon tolerance {d})\n", .{ actual, e.expected, tolerance });
return error.TestExpectEqualEps;
}
}
/// Bitwise equality
@ -41,7 +46,8 @@ fn ExpectVector(comptime T: type) type {
var i: usize = 0;
while (i < len) : (i += 1) {
if (!math.eql(Elem, e.expected[i], actual[i], tolerance)) {
std.debug.print("vector[{}] actual {}, not within absolute tolerance {} of expected {}\n", .{ i, actual[i], tolerance, e.expected[i] });
std.debug.print("actual vector {d}, expected {d} (not within absolute epsilon tolerance {d})\n", .{ actual, e.expected, tolerance });
std.debug.print("actual vector[{}] = {d}, expected {d} (not within absolute epsilon tolerance {d})\n", .{ i, actual[i], e.expected[i], tolerance });
return error.TestExpectEqualEps;
}
}
@ -68,7 +74,8 @@ fn ExpectVecMat(comptime T: type) type {
var i: usize = 0;
while (i < T.n) : (i += 1) {
if (!math.eql(T.T, e.expected.v[i], actual.v[i], tolerance)) {
std.debug.print("vector[{}] actual {}, not within absolute tolerance {} of expected {}\n", .{ i, actual.v[i], tolerance, e.expected.v[i] });
std.debug.print("actual vector {d}, expected {d} (not within absolute epsilon tolerance {d})\n", .{ actual.v, e.expected.v, tolerance });
std.debug.print("actual vector[{}] = {d}, expected {d} (not within absolute epsilon tolerance {d})\n", .{ i, actual.v[i], e.expected.v[i], tolerance });
return error.TestExpectEqualEps;
}
}