Function TestMatchParser_SimplePatterns

pkg/matchparser/match_parser_test.go:11–101

(t *testing.T)

)

func TestMatchParser_SimplePatterns(t *testing.T) {
	tests := []struct {
		name        string
		input       string
		wantArms    int
		wantPattern string
		wantBody    string
	}{
		{
			name:        "wildcard pattern",
			input:       "match x { _ => 0 }",
			wantArms:    1,
			wantPattern: "_",
			wantBody:    "0",
		},
		{
			name:        "variable pattern",
			input:       "match x { value => value }",
			wantArms:    1,
			wantPattern: "value",
			wantBody:    "value",
		},
		{
			name:        "int literal pattern",
			input:       "match x { 42 => \"answer\" }",
			wantArms:    1,
			wantPattern: "42",
			wantBody:    `"answer"`,
		},
		{
			name:        "string literal pattern",
			input:       `match x { "hello" => 1 }`,
			wantArms:    1,
			wantPattern: `"hello"`,
			wantBody:    "1",
		},
		{
			name:        "simple constructor Ok",
			input:       "match result { Ok(x) => x }",
			wantArms:    1,
			wantPattern: "Ok(x)",
			wantBody:    "x",
		},
		{
			name:        "simple constructor Err",
			input:       "match result { Err(e) => e }",
			wantArms:    1,
			wantPattern: "Err(e)",
			wantBody:    "e",
		},
		{
			name:        "nullary constructor None",
			input:       "match opt { None => 0 }",
			wantArms:    1,
			wantPattern: "None",
			wantBody:    "0",
		},
	}