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package assertions
import (
"bytes"
"fmt"
"testing"
)
func TestPassingAssertion(t *testing.T) {
fake := &FakeT{buffer: new(bytes.Buffer)}
assertion := New(fake)
passed := assertion.So(1, ShouldEqual, 1)
if !passed {
t.Error("Assertion failed when it should have passed.")
}
if fake.buffer.Len() > 0 {
t.Error("Unexpected error message was printed.")
}
}
func TestFailingAssertion(t *testing.T) {
fake := &FakeT{buffer: new(bytes.Buffer)}
assertion := New(fake)
passed := assertion.So(1, ShouldEqual, 2)
if passed {
t.Error("Assertion passed when it should have failed.")
}
if fake.buffer.Len() == 0 {
t.Error("Expected error message not printed.")
}
}
func TestFailingGroupsOfAssertions(t *testing.T) {
fake := &FakeT{buffer: new(bytes.Buffer)}
assertion1 := New(fake)
assertion2 := New(fake)
assertion1.So(1, ShouldEqual, 2) // fail
assertion2.So(1, ShouldEqual, 1) // pass
if !assertion1.Failed() {
t.Error("Expected the first assertion to have been marked as failed.")
}
if assertion2.Failed() {
t.Error("Expected the second assertion to NOT have been marked as failed.")
}
}
type FakeT struct {
buffer *bytes.Buffer
}
func (this *FakeT) Error(args ...interface{}) {
fmt.Fprint(this.buffer, args...)
}
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