Read TTY columns from stream, not stdout

Author: novemberborn

lib/reporters/mini.js

@@ -101,7 +101,7 @@ class MiniReporter {
 	_test(test) {
 		const SPINNER_WIDTH = 3;
 		const PADDING = 1;
-		let title = cliTruncate(test.title, process.stdout.columns - SPINNER_WIDTH - PADDING);
+		let title = cliTruncate(test.title, this.stream.columns - SPINNER_WIDTH - PADDING);
 
 		if (test.error || test.failing) {
 			title = colors.error(test.title);
@@ -191,7 +191,7 @@ class MiniReporter {
 				if (test.error.source) {
 					status += '  ' + colors.errorSource(test.error.source.file + ':' + test.error.source.line) + '\n';
 
-					const excerpt = codeExcerpt(test.error.source, {maxWidth: process.stdout.columns});
+					const excerpt = codeExcerpt(test.error.source, {maxWidth: this.stream.columns});
 					if (excerpt) {
 						status += '\n' + indentString(excerpt, 2) + '\n';
 					}
@@ -275,7 +275,7 @@ class MiniReporter {
 	}
 
 	section() {
-		return '\n' + chalk.gray.dim('\u2500'.repeat(process.stdout.columns || 80));
+		return '\n' + chalk.gray.dim('\u2500'.repeat(this.stream.columns || 80));
 	}
 
 	clear() {
@@ -300,7 +300,7 @@ class MiniReporter {
 	_update(data) {
 		let str = '';
 		let ct = this.statusLineCount;
-		const columns = process.stdout.columns;
+		const columns = this.stream.columns;
 		let lastLine = this.lastLineTracker.lastLine();
 
 		// Terminals automatically wrap text. We only need the last log line as seen on the screen.

lib/reporters/verbose.js

@@ -131,7 +131,7 @@ class VerboseReporter {
 				if (test.error.source) {
 					output += '  ' + colors.errorSource(test.error.source.file + ':' + test.error.source.line) + '\n';
 
-					const excerpt = codeExcerpt(test.error.source, {maxWidth: process.stdout.columns});
+					const excerpt = codeExcerpt(test.error.source, {maxWidth: this.stream.columns});
 					if (excerpt) {
 						output += '\n' + indentString(excerpt, 2) + '\n';
 					}
@@ -192,7 +192,7 @@ class VerboseReporter {
 	}
 
 	section() {
-		return chalk.gray.dim('\u2500'.repeat(process.stdout.columns || 80));
+		return chalk.gray.dim('\u2500'.repeat(this.stream.columns || 80));
 	}
 
 	write(str) {