test: add args tests

1 files changed, 215 insertions, 0 deletions

diff --git a/args_test.go b/args_test.go
new file mode 100644
index 0000000..78d346f
--- /dev/null
+++ b/args_test.go
@@ -0,0 +1,215 @@
+package complete
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+func TestArgs(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		line          string
+		completed     string
+		last          string
+		lastCompleted string
+	}{
+		{
+			line:          "a b c",
+			completed:     "b",
+			last:          "c",
+			lastCompleted: "b",
+		},
+		{
+			line:          "a b ",
+			completed:     "b",
+			last:          "",
+			lastCompleted: "b",
+		},
+		{
+			line:          "",
+			completed:     "",
+			last:          "",
+			lastCompleted: "",
+		},
+		{
+			line:          "a",
+			completed:     "",
+			last:          "a",
+			lastCompleted: "",
+		},
+		{
+			line:          "a ",
+			completed:     "",
+			last:          "",
+			lastCompleted: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.line, func(t *testing.T) {
+
+			a := newArgs(strings.Split(tt.line, " "))
+
+			if got, want := strings.Join(a.Completed, " "), tt.completed; got != want {
+				t.Errorf("%s failed: Completed = %q, want %q", t.Name(), got, want)
+			}
+			if got, want := a.Last, tt.last; got != want {
+				t.Errorf("Last = %q, want %q", got, want)
+			}
+			if got, want := a.LastCompleted, tt.lastCompleted; got != want {
+				t.Errorf("%s failed: LastCompleted = %q, want %q", t.Name(), got, want)
+			}
+		})
+	}
+}
+
+func TestArgs_From(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		line         string
+		from         int
+		newLine      string
+		newCompleted string
+	}{
+		{
+			line:         "a b c",
+			from:         0,
+			newLine:      "b c",
+			newCompleted: "b",
+		},
+		{
+			line:         "a b c",
+			from:         1,
+			newLine:      "c",
+			newCompleted: "",
+		},
+		{
+			line:         "a b c",
+			from:         2,
+			newLine:      "",
+			newCompleted: "",
+		},
+		{
+			line:         "a b c",
+			from:         3,
+			newLine:      "",
+			newCompleted: "",
+		},
+		{
+			line:         "a b c ",
+			from:         0,
+			newLine:      "b c ",
+			newCompleted: "b c",
+		},
+		{
+			line:         "a b c ",
+			from:         1,
+			newLine:      "c ",
+			newCompleted: "c",
+		},
+		{
+			line:         "a b c ",
+			from:         2,
+			newLine:      "",
+			newCompleted: "",
+		},
+		{
+			line:         "",
+			from:         0,
+			newLine:      "",
+			newCompleted: "",
+		},
+		{
+			line:         "",
+			from:         1,
+			newLine:      "",
+			newCompleted: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(fmt.Sprintf("%s/%d", tt.line, tt.from), func(t *testing.T) {
+
+			a := newArgs(strings.Split(tt.line, " "))
+			n := a.from(tt.from)
+
+			if got, want := strings.Join(n.All, " "), tt.newLine; got != want {
+				t.Errorf("%s failed: all = %q, want %q", t.Name(), got, want)
+			}
+			if got, want := strings.Join(n.Completed, " "), tt.newCompleted; got != want {
+				t.Errorf("%s failed: completed = %q, want %q", t.Name(), got, want)
+			}
+		})
+	}
+}
+
+func TestArgs_Directory(t *testing.T) {
+	t.Parallel()
+	initTests()
+
+	tests := []struct {
+		line      string
+		directory string
+	}{
+		{
+			line:      "a b c",
+			directory: "./",
+		},
+		{
+			line:      "a b c /tm",
+			directory: "/",
+		},
+		{
+			line:      "a b c /tmp",
+			directory: "/tmp",
+		},
+		{
+			line:      "a b c /tmp ",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./dir",
+			directory: "./dir/",
+		},
+		{
+			line:      "a b c dir",
+			directory: "./dir/",
+		},
+		{
+			line:      "a b c ./di",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./dir ",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./di",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./a.txt",
+			directory: "./",
+		},
+		{
+			line:      "a b c ./a.txt/x",
+			directory: "./",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.line, func(t *testing.T) {
+
+			a := newArgs(strings.Split(tt.line, " "))
+
+			if got, want := a.Directory(), tt.directory; got != want {
+				t.Errorf("%s failed: directory = %q, want %q", t.Name(), got, want)
+			}
+		})
+	}
+}