76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
package diff
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import (
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"testing"
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)
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func TestGenerateDiffComment(t *testing.T) {
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d := &Diff{}
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t.Run("HideCommonPrefix with common prefix", func(t *testing.T) {
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answerStr := "line1\nline2\nline3\nline4"
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resultStr := "line1\nline2\nlineA\nlineB"
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output := Output{
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HideCommonPrefix: true,
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}
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comment := d.generateDiffComment(answerStr, resultStr, output)
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expected := "```diff\n(2 line(s) of common prefix hidden)\n\n- line3\n- line4\n+ lineA\n+ lineB\n```\n"
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if comment != expected {
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t.Errorf("expected %q, got %q", expected, comment)
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}
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})
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t.Run("HideCommonPrefix with no common prefix", func(t *testing.T) {
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answerStr := "line1\nline2"
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resultStr := "lineA\nlineB"
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output := Output{
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HideCommonPrefix: true,
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}
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comment := d.generateDiffComment(answerStr, resultStr, output)
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expected := "```diff\n- line1\n- line2\n+ lineA\n+ lineB\n```\n"
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if comment != expected {
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t.Errorf("expected %q, got %q", expected, comment)
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}
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})
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t.Run("HideCommonPrefix with identical content", func(t *testing.T) {
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answerStr := "line1\nline2"
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resultStr := "line1\nline2"
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output := Output{
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HideCommonPrefix: true,
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}
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comment := d.generateDiffComment(answerStr, resultStr, output)
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expected := "```diff\n(2 line(s) of common prefix hidden)\n\n\n```\n"
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if comment != expected {
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t.Errorf("expected %q, got %q", expected, comment)
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}
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})
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t.Run("HideCommonPrefix with only common prefix", func(t *testing.T) {
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answerStr := "line1\nline2"
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resultStr := "line1\nline2\nlineA"
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output := Output{
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HideCommonPrefix: true,
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}
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comment := d.generateDiffComment(answerStr, resultStr, output)
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expected := "```diff\n(2 line(s) of common prefix hidden)\n\n+ lineA\n```\n"
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if comment != expected {
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t.Errorf("expected %q, got %q", expected, comment)
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}
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})
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t.Run("MaxDiffLines truncation", func(t *testing.T) {
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answerStr := "line1\nline2\nline3\nline4\nline5\nline6\nline7\nline8"
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resultStr := "line1\nline2\nline3\nlineA\nlineB\nlineC\nlineD\nlineE"
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output := Output{
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MaxDiffLines: 3,
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HideCommonPrefix: true,
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}
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comment := d.generateDiffComment(answerStr, resultStr, output)
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expected := "```diff\n(3 line(s) of common prefix hidden)\n\n- line4\n- line5\n- line6\n+ lineA\n+ lineB\n+ lineC\n\n(truncated)\n```\n"
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if comment != expected {
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t.Errorf("expected %q, got %q", expected, comment)
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}
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})
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}
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