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parse_test.go
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parse_test.go
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package cf
import (
"os"
"path/filepath"
"testing"
)
func TestParse(t *testing.T) {
dir := "testdata"
testFiles, err := os.ReadDir(dir)
if err != nil {
t.Fatalf("could not read %s: %q", dir, err)
}
for _, f := range testFiles {
if f.IsDir() {
continue
}
if filepath.Ext(f.Name()) != ".cf" {
continue
}
buf, err := os.ReadFile(dir + "/" + f.Name())
if err != nil {
t.Fatal(err)
}
ast, _ := os.ReadFile(dir + "/" + f.Name() + ".ast")
t.Run(f.Name(), func(t *testing.T) {
tokens, err := Lex(string(buf))
if err != nil {
t.Fatal(err)
}
parseTree, debugTree, err := ParseTokens(tokens)
if err != nil {
for i := range tokens {
t.Logf("%v\n", tokens[i])
}
t.Log("Debug Tree:\n\n", debugTree)
t.Fatal(err)
}
if ast != nil {
if err := astCompare(string(ast), parseTree.String()); err != nil {
t.Errorf("Test %q, AST doesn't match: %s", f.Name(), err)
t.Logf("Test %q, AST\n%s\n", f.Name(), parseTree.String())
t.Logf("Expect AST\n%s\n", string(ast))
t.Log("Debug tree:\n\n", debugTree)
}
}
})
}
}