Helper functions for testing with color highlighting of passing and failing tests. This makes it easier to spot failing tests when you have a big chunk of tests running.
The library contains two packages, expect and assert which provide identical set of functions, but expect will continue execution after failure, while assert will abort.
The output looks something like this:
Numeric comparison:
package add
import (
"github.com/vgratian/go-testutil/expect"
"testing"
)
// function we want to test
func Add(a,b int) int {
return a + b
}
func TestAdd(t *testing.T) {
x := Add(1,2)
expect.Equal(t, 3, x)
expect.Less(t, 2, x)
y := Add(x, 1)
expect.Greater(t, x, y)
}String comparison:
func TestStrings(t *testing.T) {
a := "a"
b := "b"
expect.NotEqual(t, a, b)
b = "a"
expect.Equal(t, a, b)
}Slice comparison:
func TestSlices(t *testing.T) {
x := []float32{0.1, 0.001}
y := []float32{0.1, 0.001}
expect.EqualSlice(t, x, y) // will pass
a := []string{"a", "b"}
b := []string{"b", "a"}
expect.EqualSlice(t, a, b) // will fail
}Error and pointer validation
package example
import (
"github.com/vgratian/go-testutil/assert"
"github.com/vgratian/go-testutil/expect"
"testing"
)
func TestWithGoodArgs(t *testing.T) {
obj, err := GetObj("good args")
assert.NoError(t, err) // assert: stop execution on error
assert.NotNil(t, obj)
// continue testing ...
expect.Greater(t, obj.Count, 0)
// ...
}
func TestWithBadArgs(t *testing.T) {
obj, err := GetObj("bad args")
expect.Error(t, err)
expect.Nil(t, obj)
}