added tests for parser.go

test/parser_test.go

@@ -0,0 +1,90 @@
+package test
+
+import (
+    "strings"
+    "testing"
+
+	"github.com/Illyakravchuk/lab_3/painter"
+    "github.com/Illyakravchuk/lab_3/painter/lang"
+    "github.com/stretchr/testify/assert"
+    "github.com/stretchr/testify/require"
+)
+
+func TestParseFuncWhiteCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "white\nupdate"
+    op := painter.OperationFunc(painter.WhiteFill)
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[0])
+}
+
+func TestParseFuncGreenCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "green\nupdate"
+    op := painter.OperationFunc(painter.GreenFill)
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[0])
+}
+
+func TestParseFuncResetCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "reset\nupdate"
+    op := painter.OperationFunc(painter.ResetScreen)
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[0])
+}
+
+func TestParseStructBgRectCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "bgrect 0.25 0.25 0.75 0.75\nupdate "
+    op := &painter.BgRectangle{X1: 200, Y1: 200, X2: 600, Y2: 600}
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[1])
+    assert.Equal(t, op, ops[1])
+}
+
+func TestParseStructFigureCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "figure 0.5 0.5\nupdate"
+    op := &painter.Figure{X: 400, Y: 400}
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[1])
+    assert.Equal(t, op, ops[1])
+}
+
+func TestParseStructMoveCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "move 0.3 0.3\nupdate"
+    op := &painter.Move{X: 240, Y: 240, Figures: []*painter.Figure(nil)}
+
+    ops, err := parser.Parse(strings.NewReader(command))
+
+    require.NoError(t, err)
+    assert.IsType(t, op, ops[1])
+    assert.Equal(t, op, ops[1])
+}
+
+
+func TestParseStructInvalidCommand(t *testing.T) {
+    parser := &lang.Parser{}
+    command := "invalid command"
+
+    _, err := parser.Parse(strings.NewReader(command))
+
+    assert.Error(t, err)
+}