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Mar 1, 2025
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test: add tests to achieve 100% code coverage #5638

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49 changes: 32 additions & 17 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.factory.js
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Original file line number Diff line number Diff line change
Expand Up @@ -56,39 +56,39 @@ tape( 'if provided `NaN` for any parameter, the created function returns `NaN`',

mgf = factory( 0.0, 1.0, 0.5 );
y = mgf( NaN );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NaN, 1.0, 0.5 );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( 0.0, NaN, 0.5 );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( 0.0, 1.0, NaN );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NaN, NaN, NaN );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( 0.0, NaN, NaN );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NaN, 1.0, NaN );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NaN, NaN, 0.5 );
y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NaN, NaN, 0.5 );
y = mgf( NaN );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

t.end();
});
Expand All @@ -100,34 +100,49 @@ tape( 'if provided parameters not satisfying `a <= c <= b`, the created function
mgf = factory( 2.0, 1.0, 0.5 );

y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

y = mgf( 0.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( 0.0, NINF, 0.5 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( PINF, NINF, 0.5 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( NINF, NINF, 0.5 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( -1.0, -2.0, 0.5 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( -10.0, 10.0, 12.0 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

mgf = factory( -10.0, 10.0, -12.0 );
y = mgf( 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

t.end();
});

tape( 'if provided valid `a`, `b`, and `c`, the function returns a function which returns `1` when provided `0` for `t`', function test( t ) {
var mgf;
var y;

mgf = factory( 0.0, 1.0, 0.5 );
y = mgf( 0.0 );
t.equal( y, 1.0, 'returns expected value' );

mgf = factory( -1.0, 1.0, 0.0 );
y = mgf( 0.0 );
t.equal( y, 1.0, 'returns expected value' );

t.end();
});
Expand Down
34 changes: 26 additions & 8 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.mgf.js
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Expand Up @@ -44,30 +44,48 @@ tape( 'main export is a function', function test( t ) {

tape( 'if provided `NaN` for any parameter, the function returns `NaN`', function test( t ) {
var y = mgf( NaN, 0.0, 1.0, 0.5 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );
y = mgf( 0.0, NaN, 1.0, 0.5 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );
y = mgf( 0.0, 1.0, NaN, 0.5 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );
y = mgf( 0.0, 0.0, 1.0, NaN );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );
t.end();
});

tape( 'if provided parameters not satisfying `a <= c <= b`, the function returns `NaN`', function test( t ) {
var y;

y = mgf( 2.0, -1.0, -1.1, -1.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

y = mgf( 0.0, 3.0, 2.0, 2.5 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, -1.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, 2.0 );
t.equal( isnan( y ), true, 'returns NaN' );
t.equal( isnan( y ), true, 'returns expected value' );

t.end();
});

tape( 'if provided `0` for `t` and valid `a`, `b` and `c`, the function returns `1`', function test( t ) {
var y;

y = mgf( 0.0, -1.0, -1.0, -1.0 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, 0.5 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, 1.0 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 1.0, 1.0, 1.0 );
t.equal( y, 1.0, 'returns expected value' );

t.end();
});
Expand Down
18 changes: 18 additions & 0 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.native.js
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,24 @@
t.end();
});

tape( 'if provided `0` for `t` and valid `a`, `b` and `c`, the function returns `1`', function test( t ) {
var y;

y = mgf( 0.0, -1.0, -1.0, -1.0 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, 0.5 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 0.0, 1.0, 1.0 );
t.equal( y, 1.0, 'returns expected value' );

y = mgf( 0.0, 1.0, 1.0, 1.0 );
t.equal( y, 1.0, 'returns expected value' );

t.end();
});

tape( 'the function evaluates the MGF for `x` given a small range `b - a`', opts, function test( t ) {
var expected;
var delta;
Expand All @@ -104,7 +122,7 @@
} else {
delta = abs( y - expected[ i ] );

// FIXME: the tolerance for the C implementation is widely different from the JavaScript implementation, and it is not clear why.

Check warning on line 125 in lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.native.js

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Unexpected 'fixme' comment: 'FIXME: the tolerance for the C...'
tol = 1.0e7 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
}
Expand Down Expand Up @@ -135,7 +153,7 @@
} else {
delta = abs( y - expected[ i ] );

// FIXME: the tolerance for the C implementation is widely different from the JavaScript implementation, and it is not clear why.

Check warning on line 156 in lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.native.js

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Unexpected 'fixme' comment: 'FIXME: the tolerance for the C...'
tol = 1.0e7 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
}
Expand Down Expand Up @@ -166,7 +184,7 @@
} else {
delta = abs( y - expected[ i ] );

// FIXME: the tolerance for the C implementation is widely different from the JavaScript implementation, and it is not clear why.

Check warning on line 187 in lib/node_modules/@stdlib/stats/base/dists/triangular/mgf/test/test.native.js

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Unexpected 'fixme' comment: 'FIXME: the tolerance for the C...'
tol = 1.0e7 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
}
Expand Down