87 lines
1.6 KiB
Go
87 lines
1.6 KiB
Go
//go:build !js
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package main
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import (
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"testing"
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core "dappco.re/go/core"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestRun_WritesBundle(t *testing.T) {
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input := core.NewReader(`{"H":"nav-bar","C":"main-content"}`)
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output := core.NewBuilder()
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err := run(input, output)
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require.NoError(t, err)
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js := output.String()
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assert.Contains(t, js, "NavBar")
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assert.Contains(t, js, "MainContent")
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assert.Contains(t, js, "customElements.define")
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assert.Equal(t, 2, countSubstr(js, "extends HTMLElement"))
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}
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func TestRun_InvalidJSON(t *testing.T) {
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input := core.NewReader(`not json`)
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output := core.NewBuilder()
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err := run(input, output)
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assert.Error(t, err)
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assert.Contains(t, err.Error(), "invalid JSON")
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}
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func TestRun_InvalidTag(t *testing.T) {
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input := core.NewReader(`{"H":"notag"}`)
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output := core.NewBuilder()
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err := run(input, output)
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assert.Error(t, err)
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assert.Contains(t, err.Error(), "hyphen")
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}
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func TestRun_EmptySlots(t *testing.T) {
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input := core.NewReader(`{}`)
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output := core.NewBuilder()
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err := run(input, output)
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require.NoError(t, err)
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assert.Empty(t, output.String())
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}
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func countSubstr(s, substr string) int {
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if substr == "" {
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return len(s) + 1
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}
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count := 0
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for i := 0; i <= len(s)-len(substr); {
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j := indexSubstr(s[i:], substr)
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if j < 0 {
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return count
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}
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count++
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i += j + len(substr)
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}
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return count
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}
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func indexSubstr(s, substr string) int {
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if substr == "" {
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return 0
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}
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if len(substr) > len(s) {
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return -1
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}
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for i := 0; i <= len(s)-len(substr); i++ {
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if s[i:i+len(substr)] == substr {
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return i
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}
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}
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return -1
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}
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