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matrix_test.go
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matrix_test.go
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package main
import (
"testing"
)
type eqTestPair struct {
a, b row
}
type transposeTestPair struct {
normal, transposed matrix
}
var eqPairs = []eqTestPair{
{
a: row{1, 2, 3},
b: row{1, 2, 3},
},
}
var neqPairs = []eqTestPair{
{
a: row{1, 2, 3},
b: row{1, 2, 4},
},
{
a: row{1, 2, 3},
b: row{1, 2},
},
{
a: row{1, 2},
b: row{1, 2, 3},
},
}
var transposePairs = []transposeTestPair{
{
normal: matrix{
row{1, 2, 3},
row{4, 5, 6},
},
transposed: matrix{
row{1, 4},
row{2, 5},
row{3, 6},
},
},
{
normal: matrix{
row{1, 2, 3},
},
transposed: matrix{
row{1},
row{2},
row{3},
},
},
{
normal: matrix{
row{1, 2, 3},
row{1, 2},
row{1, 2, 3},
},
transposed: matrix{
row{1, 1, 1},
row{2, 2, 2},
row{3, 0, 3},
},
},
}
func TestRowEq(t *testing.T) {
for _, r := range eqPairs {
if !r.a.eq(r.b) {
t.Errorf("equality test failed: %v == %v", r.a, r.b)
}
}
for _, r := range neqPairs {
if r.a.eq(r.b) {
t.Errorf("non-equality test failed: %v != %v", r.a, r.b)
}
}
}
func TestTranspose(t *testing.T) {
for _, pair := range transposePairs {
got := pair.normal.transpose()
want := pair.transposed
if !got.eq(want) {
t.Errorf("got %v, wanted %v", got, want)
}
}
}