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patterns_test.go
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patterns_test.go
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package numwords
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestPatterns_Done(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 20, denominator: 1, typ: numTens},
}
out := done(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(20), out[0].Value())
assert.Equal(t, numDone, out[0].typ)
}
func TestPatterns_Drop(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 1},
number{numerator: 2},
}
out := drop(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, 2, out[0].numerator)
}
func TestPatterns_Add(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 20, denominator: 1, typ: numTens},
number{numerator: 3, denominator: 1, typ: numSingle},
}
out := add(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(23), out[0].Value())
assert.Equal(t, numTens, out[0].typ)
ns = numbers{
number{numerator: 100, denominator: 1, typ: numBig},
number{numerator: 1, denominator: 2, typ: numFraction},
}
out = add(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(100.5), out[0].Value())
assert.Equal(t, numFraction, out[0].typ)
}
func TestPatterns_Multiply(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 3, denominator: 1, typ: numSingle},
number{numerator: 100, denominator: 1, typ: numBig},
}
out := multiply(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(300), out[0].Value())
assert.Equal(t, numBig, out[0].typ)
ns = numbers{
number{numerator: 100, denominator: 1, typ: numBig},
number{numerator: 1, denominator: 4, typ: numFraction},
}
out = multiply(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(25), out[0].Value())
assert.Equal(t, numFraction, out[0].typ)
}
func TestPatterns_Combine(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 3, denominator: 1, typ: numSingle},
number{numerator: 100, denominator: 1, typ: numBig},
}
out := combine(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(300), out[0].Value())
assert.Equal(t, numBig, out[0].typ)
ns = numbers{
number{numerator: 100, denominator: 1, typ: numBig},
number{numerator: 3, denominator: 1, typ: numSingle},
}
out = combine(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(103), out[0].Value())
assert.Equal(t, numBig, out[0].typ)
}
func TestPatterns_CombineToLowest(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 1000, denominator: 1, typ: numBig},
number{numerator: 3, denominator: 1, typ: numSingle},
number{numerator: 100, denominator: 1, typ: numBig},
}
out := combineToLowest(ns, 0)
assert.Len(t, out, 2)
assert.Equal(t, float64(300), out[1].Value())
assert.Equal(t, numBig, out[1].typ)
assert.Equal(t, float64(1000), out[0].Value())
ns = numbers{
number{numerator: 100, denominator: 1, typ: numBig},
number{numerator: 3, denominator: 1, typ: numSingle},
number{numerator: 1000, denominator: 1, typ: numBig},
}
out = combineToLowest(ns, 0)
assert.Len(t, out, 2)
assert.Equal(t, float64(103), out[0].Value())
assert.Equal(t, numBig, out[0].typ)
assert.Equal(t, float64(1000), out[1].Value())
}
func TestPatterns_YearOrDone(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 19, denominator: 1, typ: numDirect},
number{numerator: 88, denominator: 1, typ: numTens},
}
out := yearOrDone(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(1988), out[0].Value())
assert.Equal(t, numDone, out[0].typ)
ns = numbers{
number{numerator: 20, denominator: 1, typ: numTens},
number{numerator: 15, denominator: 1, typ: numDirect},
}
out = yearOrDone(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(2015), out[0].Value())
assert.Equal(t, numDone, out[0].typ)
ns = numbers{
number{numerator: 30, denominator: 1, typ: numTens},
number{numerator: 0, denominator: 1, typ: numDirect},
}
out = yearOrDone(ns, 0)
assert.Len(t, out, 2)
assert.Equal(t, numDone, out[1].typ)
}
func TestPatterns_FractionOrDone(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 1, denominator: 1, typ: numSingle},
number{numerator: 4, denominator: 1, typ: numSingleOrdinal, ordinal: true},
}
out := fractionOrDone(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(0.25), out[0].Value())
assert.Equal(t, numFraction, out[0].typ)
assert.False(t, out[0].ordinal)
ns = numbers{
number{numerator: 2, denominator: 1, typ: numSingle},
number{numerator: 4, denominator: 1, typ: numSingleOrdinal, ordinal: true},
}
out = fractionOrDone(ns, 0)
assert.Len(t, out, 2)
assert.Equal(t, float64(2), out[0].Value())
assert.Equal(t, numDone, out[0].typ)
assert.Equal(t, float64(4), out[1].Value())
assert.Equal(t, numSingleOrdinal, out[1].typ)
assert.True(t, out[1].ordinal)
}
func TestPatterns_FractionOrCombine(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 1, denominator: 1, typ: numDirect},
number{numerator: 4, denominator: 1, typ: numSingleOrdinal, ordinal: true},
}
out := fractionOrCombine(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(0.25), out[0].Value())
assert.Equal(t, numFraction, out[0].typ)
assert.False(t, out[0].ordinal)
ns = numbers{
number{numerator: 20, denominator: 1, typ: numTens},
number{numerator: 4, denominator: 1, typ: numSingleOrdinal, ordinal: true},
}
out = fractionOrCombine(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(24), out[0].Value())
assert.Equal(t, numSingleOrdinal, out[0].typ)
assert.True(t, out[0].ordinal)
}
func TestPatterns_AddAnd(t *testing.T) {
t.Parallel()
ns := numbers{
number{numerator: 2, denominator: 1, typ: numSingle},
number{numerator: 0, denominator: 0, typ: numAnd},
number{numerator: 1, denominator: 2, typ: numFraction},
}
out := addAnd(ns, 0)
assert.Len(t, out, 1)
assert.Equal(t, float64(2.5), out[0].Value())
assert.Equal(t, numFraction, out[0].typ)
}
func TestPatterns_AllHaveHandlers(t *testing.T) {
t.Parallel()
for _, p := range patterns {
_, ok := patternHandlers[p]
assert.True(t, ok, "no handler for pattern `%s`", p)
}
}